| 1. |
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| 2. |
- Andler, Sten F., et al.
(författare)
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Information Fusion from Databases, Sensors and Simulations : A Collaborative Research Program
- 2005
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Ingår i: Proceedings. - : IEEE Computer Society. - 0769523064 ; , s. 234-241
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Konferensbidrag (refereegranskat)abstract
- This paper provides an overview of a collaborative research program in information fusion from databases, sensors and simulations. Information fusion entails the combination of data from multiple sources, to generate information that cannot be derived from the individual sources. This area is of strategic importance for industry and defense, as well as public administration areas such as health care, and needs to be pursued as an academic subject. A large number of industrial partners are supporting and participating in the development of the area. The paper describes the program’s general approach and main research areas, with a particular focus on the role of information fusion in systems development
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| 3. |
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| 4. |
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| 5. |
- Brolin, Anna
(författare)
-
An investigation of cognitive aspects affecting human performance in manual assembly
- 2016
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Modern manufacturing systems seem to be shifting from mass production to mass customisation, which means that systems must be able to manage changes in customer demands and requirements, new technology as well as environmental demands. This in turn leads to an increase in product variants that need to be assembled. To handle this issue, well designed and presented information is vital for assembly workers to perform effective and accurate assembly tasks. In this thesis the main focus has been to find factors that affect human performance in manual assembly. A literature review was made on the subject of manufacturing and usability as well as basic cognitive abilities used to utilise information, such as memory. This investigation identified applicable factors for assessing human cognitive performance within the research field of manufacturing. The thesis further investigates how some of these factors are handled in manual assembly, using case studies as well as observational studies. The results show that how material and information are presented to the assembler needs to be considered in order to have a positive effect on the assembly operation. In addition, a full factorial experimental study was conducted to investigate different ways of presenting material and information at the workstation while using mixed assembly mode with product variants. The material presentation factor involved the use of a material rack compared to using an unstructured kit as well as a structured kit and the information presentation factor involved using a text and number instruction compared to a photograph instruction. The results showed that using a kit is favourable compared to the traditional material rack, especially when using a structured kit combined with photographic instruction. Furthermore, the use of unstructured kits can lead to better productivity and reduced perceived workload, compared to a material rack. Although they are perhaps not as good as using a structured kit, they most likely bring a lower cost, such as man-hour consumption and space requirements. However, the number of components in an unstructured kit needs to be considered in order to keep it on a manageable level. As a conclusion, several scenarios were developed in order to understand how different assembly settings can be used in order to improve human performance at the assembly workstation.
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| 6. |
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| 7. |
- Bäckstrand, Gunnar, et al.
(författare)
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Attention, Interpreting, Decision-Making and Acting in Manual Assembly
- 2006
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Ingår i: Proceedings of the 23rd International Manufacturing Conference: IMC 23. - : University of Ulster. ; , s. 165-172
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Konferensbidrag (refereegranskat)abstract
- In a modern manufacturing environment, data and information are a vital part of the manufacturing process and in particular for supporting the value adding activities. Modern manufacturing information systems allow fast distribution of, and access to, data and information. However, the technical improvements of manufacturing information systems do not always create the benefits that were expected from them. This paper discusses this problem in the context of manual assembly tasks. Attention, interpretation and decision-making are important drivers for how well the assembly tasks are performed - the acting. In other words, the acting is governed by how and when the attention of the assembly operator is caught, how easily the information can be interpreted, and to what extent the information is useful for decision making. The aim with the work is to find and present why data and information provided on the shop floor often fails to prevent quality problems; not seldom this data and information actually causes the problems. This paper focuses on one of the core issues related to assembly data and information, namely “active attention” and how this is triggered. If active information seeking behaviour is not present on the assembly shop floor, then the probability for a quality problem increases.
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| 8. |
- Bäckstrand, Gunnar, et al.
(författare)
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Ergonomics analysis in a virtual environment
- 2007
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Ingår i: International Journal of Manufacturing Research. - : InderScience Publishers. - 1750-0591. ; 2:2, s. 198-208
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Tidskriftsartikel (refereegranskat)abstract
- Simulation can support the design of an ergonomic workplace by enabling early assessment of ergonomic conditions in a virtual environment. An important feature is the possibility to study alternative solutions or the effect of improvements from an ergonomics perspective. To be able to conduct an efficient and reliable evaluation in a virtual environment, an objective analysis method is essential. Such an analysis method should be integrated in the simulation software, and support a company's everyday ergonomics work process. In order to gain from existing ergonomics knowledge within a company, the possibility to implement such wisdom in the current simulation software becomes important. This paper presents an implementation work done with the purpose of integrating an established ergonomics work process into a virtual environment. It describes the benefits of an ergonomics work process where simulation and evaluation at early stages of a design process are key factors. The paper will also describe the integration process, i.e., the technical issues as well as the change in work methods.
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| 9. |
- Bäckstrand, Gunnar, et al.
(författare)
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Ergonomics Analysis in a Virtual Environment
- 2006
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Ingår i: Proceedings of the 23rd International Manufacturing Conference: IMC 23. - : University of Ulster. ; , s. 543-550
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Konferensbidrag (refereegranskat)abstract
- Simulation can support the design of an ergonomic workplace by enabling early assessment of ergonomic conditions in a virtual environment. An important feature is the possibility to study alternative solutions or the effect of improvements from an ergonomics perspective. To be able to conduct an efficient and reliable evaluation in a virtual environment, an objective analysis method is essential. Such an analysis method should be integrated in the simulation software, and support a company’s everyday ergonomics work process. In order to gain from existing ergonomics knowledge within accompany, the possibility to implement such wisdom in the current simulation software becomes important.This paper presents an implementation work done with the purpose of integrating an established ergonomics work process into a virtual environment. It describes the benefits of an ergonomics work process where simulation and evaluation at early stages of a design process are key factors. The paper will also describe the integration process, i.e. the technical issues as well as the change in work methods.
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| 10. |
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| 11. |
- Bäckstrand, Gunnar, et al.
(författare)
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Reduce of ergonomics design flaws through virtual methods.
- 2007
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Ingår i: Proceedings of the 39th annual Nordic Ergonomic Society Conference, Lysekil, Sweden, October 1-3, CD-ROM.. - : Nordic Ergonomics Society.
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Konferensbidrag (refereegranskat)abstract
- A work method for product and production system development that includes virtual methods for ergonomics analysis is presented and argued.The proposed work method is described and illustrated with an example,which the authors believe shows how a virtual work method can contributeto a better workplace design, and thereby, if utilised, would have prevented some of the design flaws that existed in the actual final product design in the example. This paper will also present the outcome, gain, and setbacks thatare connected to the use of virtual work analysis methods within a design process.
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| 12. |
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| 13. |
- Bäckstrand, Gunnar, et al.
(författare)
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The impact of information presentation on work environment and product quality : a case study
- 2008
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Ingår i: Proceedings of the 40th annual Nordic Ergonomic Society Conference. - Reykjavik : NES.
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Konferensbidrag (refereegranskat)abstract
- In manufacturing, it is vital that production personnel have the right information at the right time and place. The main purpose of information delivered to a workplace is to support the worker in a way that contributes to the quality of the product as well as productivity. However, when information processing becomes a large part of the workload, the time for core workplace activities is reduced. A study was conducted at a heavy diesel engine assembly line with the aim of finding how the assembly personnel interact with the information presented to them in their work context and how this affected quality and productivity. The study focused on four assembly stations and involved 70 assembly workers over a period of ten days and nights during which 2600 standard and customised variant engines were assembled. The main feature of the study was a change in the information system that reduced the amount of data and information provided, changed the location of the information, and modified the timing of information presentation. Results from the study show that the information presented at an assembly workstation influences the quality as well as the assembly process itself. The number of internal rejects decreased by 40% on two of the stations and on the other two stations no errors occurred during the study. This influence on the assembly process is of great importance from a quality perspective; by changing the information system and thereby the workers’ behaviour, the errors were reduced significantly. Whilst errors are few and detected internally, redressing these errors is a waste. Furthermore, an adequate information system boosts operator confidence and reduces cognitive stress levels. The information system used in this study was relatively simple (simpler than the regular system) and based on colour coded cards. Nevertheless, the impact was major and this indicates that when designing an information system for mass-customised assembly, a wide range of solutions needs to be considered. A study in final assembly of heavy trucks is planned for the future where the ultimate goal is to arrive at worker and task tailored presentation of information in customised assembly.
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| 14. |
- Case, Keith, et al.
(författare)
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An assembly line information system study
- 2008
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Ingår i: Advances in Manufacturing Technology – XXII. - Uxbridge : Brunel University. - 9781902316604 ; , s. 181-188
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Konferensbidrag (refereegranskat)
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| 15. |
- Danielsson, Oscar, 1982-
(författare)
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Augmented reality smart glasses as assembly operator support : A framework for enabling industrial integration
- 2022
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Manufacturing industry is seeing vast improvements in productivity and flexibility as the fourth industrial revolution continues to unfold. However, despite improved computation and automation capacity, there is still a role for operators to play in Industry 4.0, mirrored in the concept of Operator 4.0. Improved productivity and a more competitive global market have contributed to increasing manufacturing complexity, putting greater cognitive demands on operators. A technology that can support operators in this new manufacturing landscape is augmented reality (AR), specifically, headworn AR smart glasses (ARSG). With ARSG, operators can receive information interactively in real time, hands free and overlying their natural environment. ARSG are an emerging technology that is becoming more mature; there are early examples of their use in manufacturing industry, but ARSG are not yet widespread.Because ARSG are an emerging technology, there is still uncertainty as to how ARSG can be integrated, like other production equipment, in assembly lines. When current literature was analyzed, it was found that there is a need for more knowledge particularly from the manufacturing engineering perspective of practically integrating ARSG on the industrial shop floor in the long term. This thesis therefore aims to create a framework that supports industry in making strategic and practical decisions about integrating ARSG in production as an assembly operator support tool. The framework is designed to guide industrial decision makers in evaluating the suitability of ARSG as support in an assembly station and, further to offer specific recommendations and rationales for actions to take. It has two main perspectives: the operators using the ARSG and the manufacturing engineers conducting the integration into the production systems. The framework was iteratively developed, using design science combining qualitative and quantitative methods into mixed methods. Three research questions were developed and answered as steps toward creating and evaluating the framework.The results of the thesis show that ARSG integration should be considered in relation to the investment cost and efficiency gains. For instance, ARSG requires the digitalization of assembly instructions before it can be feasible. If operators are mostly stationary when working and have little need for spatial guidance, there might be cheaper alternatives to ARSG, such as monitors or pick-by-light, that merit prior consideration. The framework has been developed and tested iteratively with industrial experts from different fields, with the initial strawman design based on three literature reviews and previous research.
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| 16. |
- De Vin, Leo
(författare)
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Air Bending of Sheet Metal : An overview
- 2006
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Ingår i: SME Technical Paper. - : Society of Manufacturing Engineers. - 0081-1653. ; , s. TP06PUB25-
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Tidskriftsartikel (populärvet., debatt m.m.)abstract
- This paper presents an overview of important aspects of air bending of sheet metal parts. Air bending is potentially a very flexible process when it comes to processing small batch sizes with a high variety. However, to exploit these benefits requires that both the processing of individual bends and the overall processing of a part be executed adequately. Important aspects are the bending process itself, in particular modeling and the calculation of punch penetration and bend allowance, the determination of bending sequences and tolerance reasoning. Some problems related to springback in air bending may be solved by combining it with, for instance, laser forming, while problems related to bend sequencing or accuracy may be solved in the design stage
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| 17. |
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| 18. |
- De Vin, Leo, et al.
(författare)
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Approaches to Energy Efficiency Assessment and Management : A State of the Art Study
- 2009
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Ingår i: Proceedings of the 26th International Manufacturing Conference. - : Department of Mechanical and Manufacturing Engineering, Trinity College Dublin. - 9780956230386 ; , s. 9-16
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Konferensbidrag (refereegranskat)abstract
- Electricity prices have gone up significantly during the last decade, and in some countries, the electricity price is very volatile. There exist a number of policies and regulations to control the electricity market and to stimulate energy efficiency, but these are often not very transparent. Furthermore, indicators for energy efficiency can be misleading or difficult to measure. Although there are a number of approaches to modelling and simulation of energy consumption and energy optimisation, these approaches have some drawbacks such as prohibitive computing times, difficulties to address dynamic situations, and the lack of a holistic view on the manufacturing system. Other problems include the limited availability of data at the appropriate level of aggregation; sometimes the level is too low, in other cases too high. However, recently promising attempts have been made to use Discrete Event Simulation for energy modelling and production planning. It is believed that this, in combination with other ICT tools such as multi-objective optimisation, offers a promising way forward beyond current state of the art.
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| 19. |
- De Vin, Leo, 1957-
(författare)
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Credibility of Simulation Results – a Philosophical Perspective on Virtual Manufacturing
- 2012
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Ingår i: Proceedings of the 13th Mechatronics Forum International Conference. - Linz : TRAUNER Verlag. - 9783990330463 ; , s. 784-791
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Konferensbidrag (refereegranskat)abstract
- This paper describes the factors that play a role in credibility of simulation results. It focuses on virtual manufacturing and in particular resource simulation as an example. However, a simulation model can be used in a number of different ways. Verification and validation of models is amongst other factors important for credibility. In this area, much work has been carried out in defense research. There are also some striking similarities between virtual manufacturing and information fusion, in particular in the field of human competence development related to credibility of simulations.
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| 20. |
- De Vin, Leo, 1957-, et al.
(författare)
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Editorial
- 2009
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Ingår i: International Journal of Sustainable Engineering. - : Informa UK Limited. - 1939-7038 .- 1939-7046. ; 2:2, s. 79-79
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 21. |
- de Vin, Leo
(författare)
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Feature-based process planning for sheet metal components revisited
- 2011
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Konferensbidrag (refereegranskat)abstract
- The concept of form features in design and manufacturing is not new, but has in recent times received renewed attention in industry and academia. Manufacturing features play an important role in process planning. There are different ways to extract these manufacturing features from a product model, depending on how the model was generated. Problems related to feature extraction and reasoning include feature interactions and tolerances. For sheet metal components, some additional issues exist as the base material is flat sheet whereas the completed product is usually a three-dimensional structure. Feature abstractions can be used to avoid problems in manufacturing and increase flexibility in decision making. Compared to machining, some additional functions exist in sheet metal process planning such as flat wrap generation and nesting
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| 22. |
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| 23. |
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| 24. |
- De Vin, Leo, 1957-, et al.
(författare)
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Game-based Lean Production training of university students and industrial employees
- 2018
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Ingår i: Procedia Manufacturing. - : Elsevier. - 2351-9789. ; 25, s. 578-585
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Tidskriftsartikel (refereegranskat)abstract
- Production simulation games are increasingly popular for training students and industrial employees in Lean Production principles. They range from paper- or desktop-based games to full scale simulators and proper manufacturing machinery. This paper reports on experiences from using both desktop games and a full scale simulator. Desktop games are suitable when training people who already have a fair understanding of lean principles. Shop floor workers usually have difficulties in seeing analogies between desktop games and their work environment. For both students and industrial workers, training effects and immersion tend to be higher when using full scale simulators.
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| 25. |
- De Vin, Leo, 1957-, et al.
(författare)
-
Guest Editorial
- 2009
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Ingår i: Robotics and Computer-Integrated Manufacturing. - : Elsevier. - 0736-5845 .- 1879-2537. ; 25:6, s. 861-862
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 26. |
- De Vin, Leo, et al.
(författare)
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Information Fusion : What can the manufacturing sector learn from the defence industry?
- 2005
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Ingår i: IMC 22: Challenges Facing Manufacturing. - Dublin : Institute of Technology, Tallaght. - 9780955121807 ; , s. 363-371
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Konferensbidrag (refereegranskat)abstract
- This paper discusses information fusion including its nature as well as some models for information fusion. Research on information fusion is dominated by defence applications and therefore, most models to a certain extent are defence specific; it is explained how these can be made more generic by adapting them. It is explained how the manufacturing sector can benefit from information fusion research; some analogies between issues in manufacturing and issues in military applications are given. A specific area in which the manufacturing sector can benefit from research on information fusion is the area of virtual manufacturing. Many issues related to decision support through modelling, simulation and synthetic environments are identical for manufacturing and defence applications. A particular area of interest for the future will be verification, validation and accreditation of modelling and simulation components for synthetic environments with various involved parties.
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| 27. |
- De Vin, Leo, et al.
(författare)
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Information fusion for decision support in manufacturing : studies from the defense sector
- 2008
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Ingår i: The International Journal of Advanced Manufacturing Technology. - : Springer. - 0268-3768 .- 1433-3015. ; 35:9-10, s. 908-915
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Information fusion, the synergistic combination of information from multiple sources, is an established research area within the defense sector. In manufacturing however, it is less well-established, with the exception of sensor/data fusion for automatic decision making. The paper briefly discusses some military specific models and methods for information fusion; analogies with manufacturing as well as a more generalized terminology are presented. “Manufacturing” is an application scenario within a Swedish information fusion research program that studies information fusion from databases, sensors and simulations with (currently) a focus on support for human decision making. An area of particular interest is that of advanced applications of virtual manufacturing such as synthetic environments, a form of hardware in the loop simulation that can deliver services such as service and maintenance at remote locations. In this area, the manufacturing industry can benefit from ongoing work in the defense sector related to verification, validation and accreditation of simulation models.
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| 28. |
- De Vin, Leo, et al.
(författare)
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Information Fusion for Simulation Based Decision Support in Manufacturing
- 2006
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Ingår i: Robotics and Computer-Integrated Manufacturing. - : Elsevier. - 0736-5845 .- 1879-2537. ; 22:5-6, s. 429-436
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Tidskriftsartikel (refereegranskat)abstract
- Robust and informed decisions are important for the efficient and effective operation of installed production facilities. The paper discusses Information fusion (IF) including a generic model for IF, and situations for decision-making. The paper also discusses current and future use of manufacturing resource simulation for design/configuration, operational planning and scheduling, and service and maintenance of manufacturing systems. Many of these applications use IF in some way, as is explained in more detail for simulation based service and maintenance. An extension of the generic model for IF is presented which incorporates modeling and simulation, and active databases as used in a simulation based service and maintenance system at the authors’ laboratory
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| 29. |
- De Vin, Leo J.
(författare)
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Air Bending of Sheet Metal
- 2005
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Ingår i: FAIM 2005: Volume I. - Bilbao : University of Deusto. - 8474859905 - 9788474859904 - 8474859913 - 9788474859911 ; , s. 465-473
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Konferensbidrag (refereegranskat)
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| 30. |
- De Vin, Leo J, 1957-, et al.
(författare)
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Extending the Use of Full-Scale Lean Production Simulators : Their Role as Innovation Testbeds
- 2020
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Ingår i: Advances in Transdisciplinary Engineering. - : IOS Press. - 2352-751X. - 9781614994398 ; 13, s. 3-12
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Tidskriftsartikel (refereegranskat)abstract
- This paper describes the use of a flexible full-scale simulation environment for Lean Production training and education called 'KLF Karlstad Lean Factory'. Instead of using the PDCA cycle as model for improvement cycles, the authors have developed a model that is more descriptive; it supports training transfer to the work environment in a more intuitive way. Recently, the authors have started to use the simulator as a testbed for innovative production solutions. Together with a company, the simulator is configured so as to emulate their envisaged future production solution. This participatory modelling simulation process consists of three main stages: (i) creating a common view on aim and scope, (ii) configuration modelling, and (iii) simulations. After the simulations, participants tend to continue seeking improvements, which illustrates the effectiveness of the approach. Future work will include developing a model for measuring lean production maturity in SMEs.
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| 31. |
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| 32. |
- De Vin, Leo J., 1957-, et al.
(författare)
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Spelbaserad Lean Produktion Träning – en praktisk workshop och demo
- 2021
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Annan publikation (populärvet., debatt m.m.)abstract
- Karlstad Lean Factory (KLF) är en fullskalig simulatormiljö vilken är konstruerad och byggd för Lean Produktion träning av studenter och industrianställda. En praktisk workshop i KLF kommer att erbjudas som innehåller såväl “prova på” som diskussion och erfarenhetsutbyte
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| 33. |
- De Vin, Leo J., et al.
(författare)
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The Information Fusion JDL-U model as a reference model for Virtual Manufacturing
- 2010
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Ingår i: Robotics and Computer-Integrated Manufacturing. - : Elsevier. - 0736-5845 .- 1879-2537. ; 26:6, s. 629-638
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents a description of Modelling and Simulation as used in the Virtual Systems Research Centre at the University of Skövde. It also gives a summarized account of issues discussed in previous work such as phases in a simulation project, Verification, Validation and Accreditation, and the use of simulation as a tool to reduce uncertainty. The role of the human in various phases/activities in simulation projects is highlighted. Examples of both traditional and advanced applications of Virtual Manufacturing are given. Examples of the latter are simulation-based monitoring and diagnostics, and simulation-based optimization. Two models for Information Fusion, the OODA loop and JDL-U model, are discussed, the latter being an extension of the JDL model that describes various levels of information fusion (JDL=“joint directors of laboratories”). Subsequently, the activities and phases in a Modelling and Simulation project are placed in the context of the JDL-U model. This comparison shows that there are very strong similarities between the six (0–5) levels in the JDL-U model and activities/phases in Modelling and Simulation projects. These similarities lead to the conclusion that the JDL-U model with its associated science base can serve as a novel reference model for Modelling and Simulation. In particular, the associated science base on the “user refinement” level could benefit the Virtual Manufacturing community.
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| 34. |
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| 35. |
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| 36. |
- De Vin, Leo, 1957-, et al.
(författare)
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Karlstad Lean Factory : An instructional factory for game-based lean manufacturing training
- 2017
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Ingår i: Production & Manufacturing Research. - : Taylor & Francis. - 2169-3277. ; 5:1, s. 268-283
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Tidskriftsartikel (refereegranskat)abstract
- Simulation for training lean manufacturing ranges from simple paper-based or LEGO®-based games to larger scale simulation environments, for instance push car assembly. Some models for game-based learning are discussed and a model for lean manufacturing training is adopted . Many types of simulation may be suitable for teaching some basic elements of Lean manufacturing to students, but they are often less suitable for training industry workers in applying Lean manufacturing in their work environment. The latter group is more used to intuitive learning than to formal instruction. Thus, it is important that a training environment for this group more realistically represents the work environment; otherwise training transfer will be limited. For this reason, a lean training environment that includes materials processing stations as well as assembly areas was created. The stations exhibit some realistic behaviour such as stochastic breakdowns. Based on a comparison between factory workers and university students, five hypotheses for testing in future work are proposed.
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| 37. |
- De Vin, Leo, 1957-, et al.
(författare)
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Lean Production Simulators : From Training Environments to Innovation Testbeds
- 2019
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Ingår i: Advances in Manufacturing Technology XXXIII. - Amsterdam : IOS Press. - 9781643680088 - 9781643680095 ; , s. 461-466
-
Konferensbidrag (refereegranskat)abstract
- Models for continuous improvement processes and for game-based learning currently have some drawbacks. Based on work with Karlstad Lean Factory®, a dual model for game-based learning and improvement processes is presented. This model also shows instructional scaffolding, and there is evidence that its use stimulates training transfer. A natural step is to extend the use of fullscale lean production simulators to a novel use as innovation testbeds. This can lower the threshold for production innovation in SMEs. A small case study shows how this novel use can be organised, with several benefits for the company.
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| 38. |
- De Vin, Leo, 1957-, et al.
(författare)
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Lean Production Training for the Manufacturing Industry : Experiences from Karlstad Lean Factory
- 2017
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Ingår i: Procedia Manufacturing. - : Elsevier. - 2351-9789. ; 11
-
Tidskriftsartikel (refereegranskat)abstract
- Both literature and manufacturing companies state that simulators for providing training in lean production to industrialemployees must be similar to the work environment. This motivated the design of Karlstad Lean Factory, which is a trainingenvironment that realistically resembles an industrial environment. It is a full-scale training facility that incorporates acombination of materials processing and assembly. Parameters such as processing times, breakdown intervals and repair typescan be set. Examples of basic and more advanced training scenarios are given. Experiences from training groups of industrialemployees are described; inhomogeneity of these groups requires some specific attention.
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| 39. |
- De Vin, Leo, et al.
(författare)
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Manufacturing simulation : Good practice, pitfalls, and advanced applications
- 2004
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Ingår i: The 21st International Manufacturing Conference. ; , s. 156-163
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Konferensbidrag (refereegranskat)abstract
- The paper describes manufacturing simulation with a focus on discrete event simulation and computer aided robotics. Some generic good practices, problems, and pitfalls in the use of simulation are described. Some advanced applications of manufacturing simulation are described and elucidated on the hand of a system for simulation-based service & maintenance. Simulation-based decision support and information fusion are closely related, and plans for novel synergistic research in these area are presented
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| 40. |
- De Vin, Leo, 1957-, et al.
(författare)
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MMI: Engineering Studies with a Truly European Dimension
- 2006
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Ingår i: Innovative teaching and learning in engineering education. ; , s. 99-106
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Konferensbidrag (refereegranskat)abstract
- The paper describes a new engineering Master's program called MMII (manufacturing management and industrial informatics) that is co-located at universities in Sweden, Spain and the United Kingdom. One reason for developing the program was that the changing manufacturing landscape due to globalisation, increasing complexity of manufacturing systems itself and an increased need to integrate manufacturing systems with corporate information systems forces educators to find solutions that provide industry with engineers who have the right skills. Apart from "hard" skills related to the above-mentioned issues, industry increasingly also requires engineers to have well-developed "soft" skills such as an ability to work in an international environment and willingness to work abroad. A program given at only one location would not provide a truly European dimension and besides, it would draw heavily upon the teaching resources; hence the decision to seek international partners with complementing competences and resources; these were found at universities in Skövde, Valencia and Loughborough. In Loughborough, students read capita selecta from CAE (computer aided engineering) during one semester. In Valencia, they spend a project-based semester on international industrial management. In Skövde, they read virtual manufacturing during one semester and carry out their degree project during the final semester.
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| 41. |
- De Vin, Leo
(författare)
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On the Suitability of the Information Fusion JDL-U Model as a Reference Model for Virtual Product and Production Development
- 2009
-
Ingår i: Proceedings of the 19th International Conference on Flexible Automation and Intelligent Manufacturing. - : Teesside University. - 9780956230331 ; , s. 1317-1324
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Konferensbidrag (refereegranskat)abstract
- This paper presents a description of Modelling & Simulation as used in the Virtual Systems Research Centre and issues discussed in previous FAIM and other papers, such as phases in a simulation project, Verification, Validation & Accreditation, and the use of simulation as a tool to reduce uncertainty. The role of the human in various phases/activities in simulation projects is highlighted. Two models for Information Fusion, the JDL and JDL-U model, are discussed. Subsequently, the activities and phases in a Modelling & Simulation project are placed in the context of the JDL-U model. This comparison shows that there are very strong similarities between the six (0-5) levels in the JDL-U model and activities/phases in Modelling & Simulation projects. These similarities lead to the conclusion that the JDL-U model with its associated science base can serve as a novel reference model for Modelling & Simulation.
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| 42. |
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| 43. |
- De Vin, Leo, 1957-
(författare)
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Plagiering : en moralisk fråga eller en pedagogisk utmaning?
- 2012
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Annan publikation (populärvet., debatt m.m.)abstract
- Artikeln beskriver plagiat men även otillåtet samarbete. Uppfattningarna om vad som räknas till plagiat varierar dock. Plagiat är inte lika med fusk, för fusk krävs uppsåt att vilseleda. Plagiat uppstår ofta när studenter känner tidspress eller osäkerhet. Lärare brukar upptäcka indikeringar på möjligt plagiat på manga olika sätt, det är relativt sällan att antiplagieringsverktyg larmar utan att läraren redan har fått misstankar. Sättet som plagiat hanteras på beror på ett antal faktorer, till exempel om studenten vet om korrekt källhantering eller ej. Inte alla fall av plagiat blir ärenden för disciplinsnämnden. Som lärare kan man förebygga plagiat på olika sätt. Dels handlar det om information och träning för studenter, dels handlar det om utformning av examinationsuppgifter, till exempel variation av uppgifter och muntlig återkoppling.
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| 44. |
- De Vin, Leo
(författare)
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Process Planning Issues in Air Bending of Sheet Metal
- 2009
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Ingår i: The International 3rd Swedish Production Symposium. - : The Swedish Production Academy. - 9789163360060 ; , s. 334-341
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Konferensbidrag (refereegranskat)abstract
- This paper presents an overview of important aspects of air bending of sheet metal parts. Air bending is potentially a very flexible process when it comes to processing small batch sizes with high variety. However, to exploit these benefits requires that both the processing of individual bends and the overall processing of a part be executed adequately. Important aspects are the bending process itself, in particular modeling and the calculation of punch penetration and bend allowance, the determination of bending sequences, and tolerance reasoning. Some problems related to spring back in the air bending may be solved by combining it with for instance laser forming. Some problems related to bend sequencing or accuracy may be solved in the design stage.
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| 45. |
- De Vin, Leo, 1957-
(författare)
-
Process Planning Issues in Air Bending of Sheet Metal
- 2009
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Ingår i: Proceedings of the 3rd International Swedish Production Symposium, SPS '09. - Göteborg. - 9789163360060 ; , s. 334-341
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 46. |
- De Vin, Leo, et al.
(författare)
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Simulation-based decision support for manufacturing system life cycle management
- 2004
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Ingår i: Journal of Advanced Manufacturing Systems. - : World Scientific. - 0219-6867 .- 1793-6896. ; 3:2, s. 115-128
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Tidskriftsartikel (refereegranskat)abstract
- Previous research has highlighted the role of virtual engineering tools in the development of manufacturing machinery systems. Simulation models created for this purpose can potentially be used to provide support for other tasks, such as operational planning and service and maintenance. This requires that the simulation models can be fed with historic data as well as with snapshot data. Furthermore, the models must be able to communicate with other business software. The paper describes how simulation models can be used for operational production planning and for service and maintenance support. Benefits include a better possibility to verify production plans and the possibility to monitor and service manufacturing machinery from remote locations. Furthermore, the expanded and continuously updated models provide a good tool to study the effect of, for instance, planned new product introduction in existing manufacturing systems. The paper also presents directions for future research. One ambition is to add AI tools to the system so as to develop a semi-autonomous system for decision support
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| 47. |
- De Vin, Leo, 1957-
(författare)
-
Simulation, Models, and Results: Reflections on their Nature and Credibility
- 2015
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Ingår i: Proceedings of Flexible Automation and Intelligent Manufacturing, FAIM2015, Wolverhampton, UK. - Wolverhampton, UK : The Choir Press. - 9781910864005 ; , s. 148-155
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Konferensbidrag (refereegranskat)abstract
- Simulation tools are widely used across the product, process and resource domains of product- and production development. This paper discusses the nature of simulation models and the wide use of simulation models .It uses virtual manufacturing, in particular discrete event simulation project methodology, as an example to elucidate important aspects of simulation, in particular human roles and some selected project phases of which verification and validation in relation to the simulation’s intended purpose are discussed in particular. The paper uses the NASA CAS model for credibility assessment of simulations to arrive at a schematic representation of how overall credibility as composed of aspect related to the model, the data, and the model’s use.
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| 48. |
- De Vin, Leo, 1957-, et al.
(författare)
-
Simulator-assisted lean production training
- 2019
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Ingår i: Production & Manufacturing Research. - : Taylor & Francis. - 2169-3277. ; 7:1, s. 433-447
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Tidskriftsartikel (refereegranskat)abstract
- In Lean Production training and education, simulators are often used.These can take the form of for instance desktop games, computersimulations, or full-scale simulators. Many training participants perceivemodels for experiential learning and for continuous improvementprocesses as complex and abstract. Based on experiences from trainingsessions in a full-scale simulator Karlstad Lean Factory®, a unifiedmodelfor learning and improvementwork is presented. Thismodel stimulatestraining transfer and is perceived as intuitive. It also shows instructionalscaffolding as a learning method. Suggestions for future work includeinvestigating synergy with Smart Manufacturing and the use of LeanProduction simulators for innovative product realisation.
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| 49. |
- De Vin, Leo, 1957-, et al.
(författare)
-
Simulator-Assisted Lean Production Training and Education
- 2018
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Ingår i: Advances in manufacturing technology. - Amsterdam : IOS Press. - 9781614999010 - 9781614999027 ; , s. 487-492
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Konferensbidrag (refereegranskat)abstract
- In Lean Production training and education, simulators are often used. These can take the form of for instance desktop games, computer simulations, or full-scale simulators. Most evidence of training transfer from the training environment to the work situation is anecdotal, and as such is assessment of training transfer a research gap. Experiences from training sessions in Karlstad Lean Factory® are presented, including a combination with computer simulation. A unified model for learning and improvement work is presented. Some suggestions for future work include investigating synergy with Smart Manufacturing and/or innovative product realization.
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| 50. |
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