| 1. |
- Chen, Xiaoxia, 1983, et al.
(författare)
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Implications of Virtual Reality on Environmental Sustainability in Manufacturing Industry: A Case Study
- 2021
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Ingår i: Procedia CIRP. - : Elsevier BV. - 2212-8271. ; 104, s. 464-469
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Konferensbidrag (refereegranskat)abstract
- Research on Virtual Reality (VR) in manufacturing is rarely driven by environmental sustainability. This paper explores the feasibility of developing VR technologies to reduce environmental impact, drawing from a case study in an automotive company. We developed a VR demo to support the communication for design review between the technology centre in Sweden and the manufacturing site in China, thus reducing travel frequencies. This reduction was verified through user experience and feedback from focus group discussion and questionnaire. The results show a reduction of travel frequencies for design review, therefore contributing to environmental sustainability.
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| 2. |
- Gong, Liang, 1985, et al.
(författare)
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Interaction design for multi-user virtual reality systems: An automotive case study
- 2020
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Ingår i: Procedia CIRP. - : Elsevier BV. - 2212-8271. ; 93, s. 1259-1264
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Konferensbidrag (refereegranskat)abstract
- Virtual reality (VR) technology have become ever matured today. Various research and practice have demonstrated the potential benefits of using VR in different application area of manufacturing, such as in factory layout planning, product design, training, etc. However, along with the new possibilities brought by VR, comes with the new ways for users to communicate with the computer system. The human computer interaction design for these VR systems becomes pivotal to the smooth integration. In this paper, it reports the study that investigates interaction design strategies for the multi-user VR system used in manufacturing context though an automotive case study.
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| 3. |
- Mark, Andreas, 1980, et al.
(författare)
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Multi-scale simulation of paperboard edge wicking using a fiber-resolving virtual paper model
- 2012
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Ingår i: Tappi Journal. - 0734-1415. ; 11:6, s. 9-16
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Tidskriftsartikel (refereegranskat)abstract
- When liquid packaging board is made aseptic in the filling machine the unsealed edges of the board are exposed to hydrogen peroxide. A high level of liquid penetration may lead to aesthetic as well as functional defects. To be able to make a priori predictions of the edge wicking properties of a certain paperboard material is therefore of great interest to paper industry as well as to packaging manufacturers. In this paper a multi-scale framework is proposed that allows for detailed simulation of the edge wicking process.On the fiber micro-scale virtual paper models are generated based on input from tomographic and SEM images. A pore morphology method is used to calculate capillary pressure curves, and on the active pores one-phase flow simulations are performed for relative permeabilities. The results as functions of saturation and porosity are stored in a database. The database is used as input for two-phase flow simulations on the paper macro-scale. The resulting fluid penetration is validated against pressurized edge wick measurements on paper lab sheets with very good agreement. The proposed multi-scale approach can be used to increase the understanding of how edge wicking in paperboard packages depends on the micro-structure.
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| 4. |
- Mark, Andreas, 1980, et al.
(författare)
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Multi-scale simulation of paperboard edge wicking using a fiber-resolving virtual paper model
- 2011
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Ingår i: Progress in Paper Physics Seminar. - 9783851251630 ; , s. 41-47
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Konferensbidrag (refereegranskat)abstract
- When liquid paperboard based package material ismade aseptic, unsealed edges of the board are exposedto a liquid front which in some circumstances may soakthe material to some extent. This is not desired since itmay lead to aesthetic as well as functional defects. Inorder to make a priori predictions of the edge wickingproperties of a given paper material, something whichis of great interest to paperboard industry as well aspackaging manufacturers, micro simulations are required.To calculate the penetration of fluid in the open edgeof a paper sheet a multi-scale framework is developed.On the fiber micro-scale, virtual paper models are generatedin PaperGeo [6]. In IBOFlow [7] a pore morphologymethod is used to calculate capillary pressurecurves, and the active pores one-phase flow simulationsare performed for relative permeabilities. Theresult is a database of capillary pressure curves andrelative permeabilities as functions of saturation andporosity. The database is used as an input for a twophaseflow simulation on a 2D virtual macro sheet tocalculate the penetration of fluid in the paper. Themulti-scale framework is validated against pressurizededge wick measurements with good agreement.
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| 5. |
- Reinhard, René, et al.
(författare)
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The Use and Usage of Virtual Reality Technologies in Planning and Implementing New Workstations
- 2020
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Ingår i: DHM2020. - Amsterdam : IOS Press. - 9781643681047 - 9781643681054 ; , s. 388-397
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Konferensbidrag (refereegranskat)abstract
- Virtual reality (VR) technologies can support the planning and implementation of new workstations in various industry sectors, including in automotive assembly. Starting in the early planning stages, VR can help in identifying potential problems of new design ideas, e.g. through ergonomics analyses. Designers can then quickly change the virtual representations of new workstations to test solutions for the emerging difficulties. For this purpose, the actions and motions of prospective workers can be captured while they perform the work tasks in VR. The information can also be used as input for digital human modelling (DHM) tools, to instruct biomechanical human models. The DHM tools can then construct families of manikins that differ on anthropometric characteristics, like height, to simulate work processes. This paper addresses both existing technologies for gathering data on human actions and motions during VR usage and ways in which these data can be used to assist in designing new workstations. Here, a novel approach to translate a VR user’s actions into instructions for DHM tools through an event-based instruction sampling method is presented. Further, the challenges for utilizing VR are discussed through an industrial use case of the manual assembly of flexible cables in an automotive context.
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