| 1. |
- Eriksson, Martin, et al.
(author)
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Integrating engineering design and design analysis activities at an operational level
- 2017
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In: Proceedings of the 11th International Workshop on Integrated Design Engineering - IDE Workshop'17. - Magdeburg. - 9783941016118 ; , s. 69-80
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Conference paper (other academic/artistic)abstract
- Computer-based design analysis is nowadays of utmost importance for most engineering design projects. However, this brings some challenges, among them that of the collaboration between engineering designers and design analysts. Since they work with, and are responsible for, different areas, they do not necessarily have full insight into each other’s way of working. The issue of integration between the design analysis process and the engineering design process is of major significance for providing an increase in efficiency and effectiveness in engineering design and development of products. In this work, an approach is proposed aiming at providing this increase in efficiency and effectiveness. Based on the analysis of the information workflow between the engineering design process and the design analysis process, a mapping of the necessary interactions between engineering designers and design analysts can be made. The presented approach facilitates this mapping. An application of this approach to an industrial project is also presented.
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| 2. |
- Eriksson, Martin, et al.
(author)
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Interaction between computer-based design analysis activities and the engineering design process - An industrial survey
- 2014
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In: Proceedings of the 13th International Design Conference - DESIGN'14. - Zagreb : University of Zagreb. - 1847-9073. ; DS 77:2, s. 1283-1296, s. 1283-1296
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Conference paper (peer-reviewed)abstract
- In the large majority of product development projects, computer-based design analyses are performed to assess the feasibility of potential technical solutions. As a first step to bring about a deeper understanding of the interactions between the engineering design and the design analysis activities, a survey has been performed in industry. The results of the survey cover: the use of design analysis within product development, the interactions of engineering design along the design analysis process, and the treatment of uncertainties and errors connected to the design analysis activities.
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| 3. |
- Eriksson, Martin, et al.
(author)
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Utilizing the generic design analysis (GDA) process model within an extended set of design analysis contexts
- 2017
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In: Proceedings of the International Mechanical Engineering Congress & Exposition - IMECE'17. - New York : ASME Press. - 9780791858462 ; 11, s. 011-028
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Conference paper (peer-reviewed)abstract
- In most industrial product development projects, computer-based design analysis, or simply design analysis, is frequently utilized. Several design analysis process models exist in the literature for the planning, execution and follow-up of such design analysis tasks. Most of these process models deal explicitly with design analysis tasks within two specific contexts: the context of design evaluation, and the context of design optimization. There are, however, several more contexts within which design analysis tasks are executed. Originating from industrial practice, four contexts were found to represent a significant part of all design analysis tasks in industry. These are: 1. Explorative analysis, aiming at the determination of important design parameters associated with an existing or predefined design solution (of which design optimization is a part). 2. Evaluation, aiming at giving quantitative information on specific design parameters in support of further design decisions. 3. Physical testing, aiming at validating design analysis models through physical testing, that is, determining the degree to which models are accurate representations of the real world from the perspective of the intended uses of the models. 4. Method development, that is the development, verification and validation of specific guidelines, procedures or templates for the design analyst and/or the engineering designer to follow when performing a design analysis task. A design analysis process model needs to be able to deal with at least these four. In this work, a process model named the generic design analysis (GDA) process model, is applied to these four contexts. The principles for the adaptation of the GDA process model to different contexts are described. The use of the GDA process model in these contexts is exemplified with industrial cases: explorative analysis of design parameters of a bumper beam system, the final physical acceptance tests of a device transportation system (collision test, drop test, vibration test), and the method development of a template for analyzing a valve in a combustion engine. The "Evaluation" context is not exemplified as it is the most common one in industry. The GDA process model has been successfully used for the four contexts. Using the adaptation principles and industrial cases, the adaptation of the GDA process model to additional contexts is also possible.
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| 4. |
- Motte, Damien, et al.
(author)
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Development of a computer-aided fixture design system for lightweight grippers in the automotive industry
- 2016
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In: International Journal of Design Engineering. - Genève : InderScience Publishers. - 1751-5874 .- 1751-5882. ; 6:3, s. 237-261
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Journal article (peer-reviewed)abstract
- The need for dedicated fixtures for flexible manufacturing systems is increasing, as dedicated fixtures are lighter, more compact and, more accurate than flexible fixtures. The main challenges are that parts and processes are more and more complex, which requires designing novel or complex dedicated fixtures, and that, for one given flexible fixture to be replaced, several variants of such dedicated fixtures must be designed to hold a variety of individual parts, without imposing increased costs and delays. The systematic fixture design method and computer-aided design fixture system (CAFDS) developed and applied for the presented industrial case—novel design of lightweight (carbon fibre composite) robot grippers—is a possible approach to address these issues.
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| 5. |
- Motte, Damien, et al.
(author)
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Integration of the computer-based design analysis activity in the engineering design process - A literature survey
- 2014
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In: Proceedings of the 10th International Symposium on Tools and Methods of Competitive Engineering - TMCE'14. - Delft : Delft University of Technology. - 9789461861771 - 9461861761 - 9789461861764 ; 2, s. 1181-1194
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Conference paper (peer-reviewed)abstract
- Computer-based design analysis is nowadays a common activity in most development projects. Used for design evaluation, verification, validation, or as a support for design exploration, it fulfils an important support function for the engineering designer, thus making it essential to have an operationally efficient and effective integration between both the engineering design and design analysis activities in the overall development project. In this area, most works are focusing on software (mainly CAD/CAE) integra-tion, but not on the integration between computer-based design analysis and engineering design at the process level or on the collaboration between the engineering designer and the design analyst. This paper presents a review of the literature on that specific topic, namely the integration of the computer-based design analysis activity in the engineering design process. Different research topics are identified and elaborated upon: integration in general process models; rec-ommendations for the different analysis steps; analysis early in the engineering design process; integration of design analysis in the engineering designer's work; alternative usages of design analysis in the engineering design process; and others, such as recommending guidelines instead of process models, quality assurance aspects, education, and implementation issues. Some neglected aspects were also identified. Among others, there is a lack of research into the so-called technology development (development of design analysis procedures and guidelines), and a need for emphasis on uncertainties, both coupled with the design analysis activity.
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| 6. |
- Petersson, Håkan, et al.
(author)
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A computer-based design system for lightweight grippers in the automotive industry
- 2012
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In: Proceedings of the International Mechanical Engineering Congress & Exposition - IMECE'12. - New York : ASME Press. - 9780791845196 ; 3 - Part A, s. 169-179
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Conference paper (peer-reviewed)abstract
- This paper presents the development as well as the architecture of a computer-aided dedicated fixture design system intended to support the design of lightweight (carbon fiber composite) grippers for a major truck company. Lightweight grippers were required due to the increasing production rates in the automotive industry. The current robotic equipment was facing diverse problems during transportation and aligning of the parts, problems related to mass inertia, accuracy and stability. Moreover, the increased demands for truck customization and fast release of new product versions required a computer-based support for the design of the appropriate fixtures. This application is believed to be of interest for fixture research because the design of such complex fixtures is likely to appear more and more often. Specifically, such fixtures are subject to specific requirements that necessitate a systematic requirement elicitation method; they also require extensive conceptual design work as well as careful analysis activity planning. The main steps requisite for the development of the design system are reported: setup planning, fixture planning, conceptual design of the gripper. The architecture, the process and the constituent elements of the design system are also described and illustrated.
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| 7. |
- Petersson, Håkan, et al.
(author)
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A process model for the design analysis clarification task
- 2012
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In: Proceedings of the 9th International NordDesign Conference - NordDesign'12. - Aalborg & Glasgow : Aalborg University & University of Strathclyde. - 9788791831515 ; DS 71, s. 494-501
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Conference paper (peer-reviewed)abstract
- Many product development projects nowadays use computer-aided engineering systems in the analysis of product proposals. It is therefore important to appropriately integrate the analyses activities in the product development process. One important aspect of this integration is how to handle the initiation of the task: identifying the need, planning the task and its monitoring, and communicating it to the analyst. To that end, this paper proposes and illustrates a product development process model that aims to efficiently and effectively prepare a design analysis task.
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| 8. |
- Petersson, Håkan, 1962-, et al.
(author)
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Carbon Fiber Composite Materials in Modern Day Automotive Production Lines – A Case Study
- 2013
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In: ASME 2013 International Mechanical Engineering Congress and Exposition. - New York : ASME Press. - 9780791856185
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Conference paper (peer-reviewed)abstract
- New and innovative production equipment can be developed by introducing lightweight materials in modern day automotive industry production lines. The properties of these new materials are expected to result in improved ergonomics, energy savings, increased flexibility and more robust equipment, which in the end will result in enhanced productivity. Carbon composite materials are one such alternative that has excellent material properties. These properties are well documented, and the market for carbon composite materials is growing in many areas such as commercial aircrafts, sporting goods and wind turbines. However, when studying the use of carbon composite materials for production equipment in the automotive industry, it was found that there were few, if any, such examples.This paper focuses on innovative ways of making carbon composite materials available for designing automotive industry production equipment by introducing a design and material concept that combines flexibility, relatively low costs and high functionality. By reducing the weight by 60%, it was obvious that the operators were very positive to the new design. But just as important as the improvement of the ergonomic feature, the combination of low weight and material properties resulted in a more robust design and a more stable process of operation. The two main designs (two versions of the steel-based design were constructed) were developed sequentially, making it difficult to compare development costs since knowledge migrated from one project to the next. In this study, the gripper was manufactured in both carbon composite material and steel. The different designs were compared with reference to design costs, functionality, robustness, product costs and ergonomics. The study clearly shows that the composite material represents a favorable alternative to conventional materials, as the system combines superior properties without significantly increasing the cost of the equipment. This paper describes the approach in detail. Copyright © 2013 by ASME
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| 9. |
- Petersson, Håkan, et al.
(author)
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Integration of computer aided design analysis into the engineering design process for use by engineering designers
- 2013
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In: Proceedings of the International Mechanical Engineering Congress & Exposition - IMECE'13. - New York : ASME Press. - 9780791856413 ; 12, s. 002-13
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Conference paper (peer-reviewed)abstract
- When developing products, engineering designers often face the problem that their candidate for a technical solution, ranging from a concept to a detailed design, needs to be analyzed by a design analyst before it is approved or rejected and the engineering designer can continue his/her activities within the product development process. If engineering designers have to send every solution candidate to a design analyst, a lot of time and money is lost. To avoid this, some Swedish companies have started to allow their engineering designers to use the analysis capabilities imbedded in modern CAD/CAE software. In the literature on product development and on computer based design analysis (CBDA) both processes are fairly well described. However, this cannot be said about the interaction between the two processes. This is a growing issue as it represents core knowledge for developing efficient and effective integration concepts, which in turn can be developed into likewise efficient and effective approaches on how to assist the engineering designer to perform parts of the CBDA process on his/her own. Note that when we refer to CBDA here, this is confined to the use of FEM in the development of products, primarily based on working principles originating from the area of Mechanical Engineering. Since we have been working on a process model for the integration between engineering design and design analysis, this has inspired us to utilize findings from these efforts to propose a conceptual model for a design analysis process driven by the engineering designer to be integrated into the product development process. The proposed design analysis process model is based on the use of predefined analysis methods or templates. Templates are also utilized for QA (Quality Assurance) and monitoring of the analysis activities. Responsible for the development of the analysis methods and the templates are expert design analysts, who develop these tools within a technology development process. Before allowing the engineering designers access to them, these tools need to be approved by relevant bodies within the industrial enterprise and/or by external sources such as those responsible for certification and risk management. In this paper we present the development of the proposed integrated design analysis process model and an industrial case study, which incorporates a non-linear design analysis activity, utilizing the FEM-program Abaqus within the CAD-software Catia V5 and its imbedded optimization module.
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| 10. |
- Petersson, Håkan, 1962-
(author)
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Template-Based Design Analysis : An Alternative Approach for the Engineering Designer to Perform Computer-Based Design Analysis
- 2016
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Doctoral thesis (other academic/artistic)abstract
- The current trend in industry to encourage engineering designers to take an active part in the analysis of their own design solutions is apparent in many companies today, domestically as well as abroad.From a research project with the objective to develop a computer-based design system for the design of lightweight grippers, one of the major difficulties was to overcome the system users’ lack of knowledge and experience in the design of lightweight structures and Computer-Based Design Analysis (CBDA). CBDA here refers to the use of analysis tools such as Finite Element Analysis (FEA) and computer-based structural optimization. In order to handle these difficulties, the author introduced the use of templates. In the given context, a template refers to an especially preformatted code, which contains the implemented information/knowledge necessary to perform a specific task on an operational level. It should be noted that the use of templates as a means of support in performing a specific design or analysis task is not a new phenomenon in industrial practice. Inspired by the opportunities provided by the template approach, the main objective set out for the thesis project was to facilitate the active participation of the engineering designers in performing CBDA singlehandedly, or in any other organizational setting, by utilizing a Template-Based Design Analysis (TBDA) approach, as an integrated part of their activities within the engineering design process.The evolutionary research approach for the development of the TBDA approach is based on surveys in Swedish as well as international industry, literature surveys, the development of a Generic Design Analysis (GDA) process model (facilitating integration of the activities between CBDA and engineering design) and a number of demonstrator projects to deepen the insights into TBDA. Note that as the TBDA approach is intended for use in industrial practice, the approach is independent of specific engineering design and product development processes utilized in industry.The conclusion of the thesis work clearly supports the claim that TBDA is not only a competitive approach to current alternatives in supporting the engineering designers performing CBDA, but also of a complementary nature providing functionality not included in the alternative approaches currently used in industrial practice.
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