1.
Johansson, Björn, 1975, et al.
(författare)
Power Level Sampling of Metal Cutting Machines for Data Representation in Discrete Event Simulation
2015
Ingår i: International Journal of Production Research. - : Informa UK Limited. - 0020-7543 .- 1366-588X. ; 53:23, s. 7060-7070
Tidskriftsartikel (refereegranskat) abstract
An extension to the application area for discrete event simulation (DES) has been ongoing since the last decade and focused only on economic aspects to include ecologic sustainability. With this new focus, additional input parameters, such as electrical power consumption of machines, are needed. This paper aim at investigating how NC machine power consumption should be represented in simulation models of factories. The study includes data-sets from three different factories. One factory producing truck engine blocks, one producing brake disc parts for cars and one producing forklift components. The total number of data points analysed are more than 2,45,000, where of over 1,11,000 on busy state for 11 NC machines. The low variability between busy cycles indicates that statistical representations are not adding significant variability. Furthermore, results show that non-value-added activities cause a substantial amount of the total energy consumption, which can be reduced by optimising the production flow using dynamic simulations such as DES.
2.
Andreasson, Hannes, et al.
(författare)
Utilizing discrete event simulation to support conceptual development of production systems
2019
Ingår i: Proceedings - Winter Simulation Conference. - 0891-7736. ; 2019, s. 2073-2084
Konferensbidrag (refereegranskat) abstract
Discrete Event Simulation (DES) is a well-reputed tool for analyzing production systems. However, the development of new production system concepts introduces challenges from uncertainties, frequent concept changes, and limited input data. This paper investigates how DES should be applied in this context and proposes an adapted simulation project methodology that sets out to deal with the identified challenges. Key adaptations include parallel and iterative methodology steps, and close involvement of the simulation team in the development of the new concept. The proposed methodology has been applied and evaluated in an industrial case study during the development of a new production system concept. The findings show that the methodology can reduce the impact of the identified challenges and provide valuable feedback which contributes to the development of both the simulation model and the production system concept. Further, an evaluation of investments in new technology can be better facilitated.
3.
Barletta, Ilaria Giovanna, 1988, et al.
(författare)
A Methodology to Align Core Manufacturing Capabilities with Sustainable Manufacturing Strategies
2018
Ingår i: Procedia CIRP. - : Elsevier BV. - 2212-8271. ; 69, s. 242-247
Konferensbidrag (refereegranskat) abstract
How do core business and manufacturing capabilities enable strategies for sustainable manufacturing, and what are those capabilities? This paper proposes a Capability Methodology for Sustainable Manufacturing (CMSM) for allowing top management of manufacturing companies to address these questions. A diagnostic tool was developed from three case studies based on a set of interview questions aimed at identifying core capabilities and sustainability issues in manufacturing companies. Interview data was coded and mapped through a relational matrix formulation that describes four archetypes for the development of sustainability strategies. The matrix maps the degree of complexity of the sustainability concept as understood by the company, and the scope of the product life cycle being considered. It is argued that the methodology helps bring awareness to managers of any gaps or mismatches between their actual core capabilities and the desired outcomes for sustainable manufacturing.
4.
Bully, Charles, et al.
(författare)
Increasing Eco-Efficiency Awareness for Ship Loading Process Using Virtual Reality and Gamification
2020
Ingår i: Advances in Transdisciplinary Engineering. - 9781614994398 ; 13
Konferensbidrag (refereegranskat) abstract
The world is striving for a sustainable future as United Nations proposed the 17 Sustainable Development Goals to reduce the environmental impact and increase societal wellbeing by 2030. In this endeavor, eco-efficiency is considered as one of the key concept to facilitate the successful transition to the sustainable development with the focus to reduce the ecological impact of industry through efficiency improvements. The shipping industry is largely involved in this challenge with a target set by International Maritime Organization to cut emissions from individual ships by 40% from 2008 levels by 2030. The ship loading process is believed to have great impact to the overall eco-efficiency as it is not only a time consuming process but also determines the fuel consumption of the transportation. In this study, we aim to incorporate virtual reality (VR) technology and gamification theories to raise the eco-efficiency awareness in the shipping loading process. A VR application for ship loading process was developed using a real world case in the Baltic sea region. Eco-efficiency concept is introduced in different levels based on the gamification theories. Maritime professionals tested the VR application and provided their feedback. The results are positive that combining VR and gamification can be useful to train operators with eco-efficiency in ship loading operations. It also shows a huge potential to support the shipping industry in this transition towards a more sustainable future. A VR application for ship loading process was developed using a real world case in the Baltic sea region. Eco-efficiency concept is introduced in different levels based on the gamification theories. Maritime professionals tested the VR application and provided their feedback. The results are positive that combining VR and gamification can be useful to train operators with eco-efficiency in ship loading operations. It also shows a huge potential to support the shipping industry in this transition towards a more sustainable future. A VR application for ship loading process was developed using a real world case in the Baltic sea region. Eco-efficiency concept is introduced in different levels based on the gamification theories. Maritime professionals tested the VR application and provided their feedback. The results are positive that combining VR and gamification can be useful to train operators with eco-efficiency in ship loading operations. It also shows a huge potential to support the shipping industry in this transition towards a more sustainable future. The results are positive that combining VR and gamification can be useful to train operators with eco-efficiency in ship loading operations. It also shows a huge potential to support the shipping industry in this transition towards a more sustainable future. The results are positive that combining VR and gamification can be useful to train operators with eco-efficiency in ship loading operations. It also shows a huge potential to support the shipping industry in this transition towards a more sustainable future.
5.
Bärring, Maja, 1988, et al.
(författare)
Digital Twin for Smart Manufacturing: the Practitioner's Perspective
2020
Ingår i: ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE).
Konferensbidrag (refereegranskat) abstract
The manufacturing sector is experiencing a technological paradigm shift, where new information technology (IT) concepts can help digitize product design, production systems, and manufacturing processes. One of such concepts is Digital Twin and researchers have made some advancement on both its conceptual development and technological implementations. However, in practice, there are many different definitions of the digital-twin concept. These different definitions have created a lot of confusion for practitioners, especially small- and medium-sized enterprises (SMEs). Therefore, the adoption and implementation of the digital-twin concept in manufacturing have been difficult and slow. In this paper, we report our findings from a survey of companies (both large and small) regarding their understanding and acceptance of the digital-twin concept. Five supply-chain companies from discrete manufacturing and one trade organization representing suppliers in the automotive business were interviewed. Their operations have been studied to understand their current digital maturity levels and articulate their needs for digital solutions to stay competitive. This paper presents the results of the research including the viewpoints of these companies in terms of opportunities and challenges for implementing digital twins.
6.
Cao, Huizhong, 1996, et al.
(författare)
Exploring the current applications and potential of extended reality for environmental sustainability in manufacturing
2023
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt) abstract
In response to the transformation towards Industry 5.0, there is a growing call for manufacturing systems that prioritize environmental sustainability, alongside the emerging application of digital tools. Extended Reality (XR) - including Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) - is one of the technologies identified as an enabler for Industry 5.0. XR could potentially also be a driver for more sustainable manufacturing: however, its potential environmental benefits have received limited attention. This paper aims to explore the current manufacturing applications and research within the field of XR technology connected to the environmental sustainability principle. The objectives of this paper are two-fold: (1) Identify the currently explored use cases of XR technology in literature and research, addressing environmental sustainability in manufacturing; (2) Provide guidance and references for industry and companies to use cases, toolboxes, methodologies, and workflows for implementing XR in environmentally sustainable manufacturing practices. Based on the categorization of sustainability indicators, developed by the National Institute of Standards and Technology (NIST), the authors analyzed and mapped the current literature, with criteria of pragmatic XR use cases for manufacturing. The exploration resulted in a mapping of the current applications and use cases of XR technology within manufacturing that has the potential to drive environmental sustainability. The results are presented as stated use-cases with reference to the literature, contributing as guidance and inspiration for future researchers or implementations in industry, using XR as a driver for environmental sustainability. Furthermore, the authors open up the discussion for future work and research to increase the attention of XR as a driver for environmental sustainability.
7.
Cao, Huizhong, 1996, et al.
(författare)
VR interaction for efficient virtual manufacturing: mini map for multi-user VR navigation platform
2024
Ingår i: Sustainable Production through Advanced Manufacturing, Intelligent Automation and Work Integrated Learning. - 9781643685106 ; , s. 335-345
Konferensbidrag (refereegranskat) abstract
Over the past decade, the value and potential of VR applications in manufacturing have gained significant attention in accordance with the rise of Industry 4.0 and beyond. Its efficacy in layout planning, virtual design reviews, and operator training has been well-established in previous studies. However, many functional requirements and interaction parameters of VR for manufacturing remain ambiguously defined. One area awaiting exploration is spatial recognition and learning, crucial for understanding navigation within the virtual manufacturing system and processing spatial data. This is particularly vital in multi-user VR applications where participants' spatial awareness in the virtual realm significantly influences the efficiency of meetings and design reviews. This paper investigates the interaction parameters of multi-user VR, focusing on interactive positioning maps for virtual factory layout planning and exploring the user interaction design of digital maps as navigation aid. A literature study was conducted in order to establish frequently used technics and interactive maps from the VR gaming industry. Multiple demonstrators of different interactive maps provide a comprehensive A/B test which were implemented into a VR multi-user platform using the Unity game engine. Five different prototypes of interactive maps were tested, evaluated and graded by the 20 participants and 40 validated data streams collected. The most efficient interaction design of interactive maps is thus analyzed and discussed in the study.
8.
Chari, Arpita, 1986, et al.
(författare)
Dynamic capabilities for circular manufacturing supply chains-Exploring the role of Industry 4.0 and resilience
2022
Ingår i: Business Strategy and the Environment. - : Wiley. - 1099-0836 .- 0964-4733. ; 31:5, s. 2500-2517
Tidskriftsartikel (refereegranskat) abstract
An organisation's sustainability performance is influenced by its capabilities (skills, resources and competences) which in turn affects the performance of its entire supply chain. However, recent research has not sufficiently explored the convergence of dynamic capabilities, circular economy, resilience and Industry 4.0 concepts for manufacturing supply chains. Therefore, this study aims to identify how dynamic capabilities theory can enable circular and resilient supply chains. A qualitative research process was deployed in three stages: literature review, European project and nine expert interviews. Key investigative variables were used to identify capabilities used in manufacturing, and five research propositions were developed to address the gaps found in literature. The empirical data helped reveal challenges to circular economy implementation and validate the literature findings. The main contributions include a dynamic capabilities model, a causal relationship model and five research propositions for circular economy implementation.
9.
Chen, Xiaoxia, 1983, et al.
(författare)
The Environmental Implications of Digitalization in Manufacturing: A Case Study
2021
Ingår i: Sustainable Production, Life Cycle Engineering and Management. - Singapore : Springer Singapore. - 2194-055X .- 2194-0541. ; , s. 249-263
Bokkapitel (övrigt vetenskapligt/konstnärligt) abstract
The potential of digital technologies is widely discussed and recognized, mainly focusing on process automation, efficiency improvements and quality control. The implications on environmental sustainability is mostly considered from a theoretical perspective rather than operational. This study aims to reveal the potential of digital technologies to reduce the environmental impact in industrial practice. A case study was carried out at two manufacturing sites of an international manufacturing company producing mechanical components for the global markets. Data and insights were collected through interviews and observations. This paper presents the findings in terms of real life implementations and potentials to reduce the environmental impact using digital technologies along the manufacturing value chain, which can serve as input and guideline for the manufacturing industry.
10.
Dalstam, Amanda, et al.
(författare)
A stepwise implementation of the virtual factory in manufacturing industry
2018
Ingår i: Proceedings - Winter Simulation Conference. - 0891-7736. ; 2018-December, s. 3229-3240
Konferensbidrag (refereegranskat) abstract
A big challenge for manufacturers today is to create a flexible and efficient production system. One way of managing this challenge is to establish a virtual factory, a virtual model of the production unit. Working smarter by using the advantages that digitalization implies enables production of personalized products at increasing speed. This paper explores how to implement such a concept by stepwise increasing the maturity of the virtual factory. Evaluated at a large-scale Swedish manufacturer, local needs and enabling technologies benchmarked at industry leaders have been identified and strategically mapped to their corresponding maturity step. This paper shows that the implementation of a virtual factory relies on standardized work procedures, ensuring its use as a decision aid throughout the company. Implementing a virtual factory in this manner will facilitate user-driven development and more accurate decision making, generating support for efficient production systems.
