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Towards holistic energy-efficient vehicle product system design: The case for a penalized continuous end-of-life model in the life cycle energy optimisation methodology
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0002-1848-7924
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design. (Conceptual Vehicle Design)ORCID iD: 0000-0003-0176-5358
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0003-1855-5437
KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design. University of Graz, Institute of Systems Sciences Innovation & Sustainability Research, Austria.ORCID iD: 0000-0002-4273-9490
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2019 (English)In: 22nd International Conference on Engineering Design, ICED19, Cambridge University Press, 2019, Vol. 1, p. 2901-2910Conference paper, Published paper (Refereed)
Abstract [en]

The Life Cycle Energy Optimisation (LCEO) methodology aims at finding a design solution that uses a minimum amount of cumulative energy demand over the different phases of the vehicle's life cycle, while complying with a set of functional constraints. This effectively balances trade-offs, and therewith avoids sub-optimal shifting between the energy demand for the cradle-to-production of materials, operation of the vehicle, and end-of-life phases. The present work describes the extension of the LCEO methodology to perform holistic product system optimisation. The constrained design of an automotive component and the design of a subset of the processes which are applied to it during its life cycle are simultaneously optimised to achieve a minimal product system life cycle energy. A subset of the processes of the end-of-life phase of a vehicle’s roof are modelled through a continuous formulation. The roof is modelled as a sandwich structure with its design variables being the material compositions and the thicknesses of the different layers. The results show the applicability of the LCEO methodology to product system design and the use of penalisation to ensure solution feasibility.

Place, publisher, year, edition, pages
Cambridge University Press, 2019. Vol. 1, p. 2901-2910
National Category
Environmental Engineering Vehicle Engineering Design
Identifiers
URN: urn:nbn:se:kth:diva-248606DOI: 10.1017/dsi.2019.297OAI: oai:DiVA.org:kth-248606DiVA, id: diva2:1303443
Conference
22nd International Conference on Engineering Design, ICED19
Note

QC 20190617

Available from: 2019-04-09 Created: 2019-04-09 Last updated: 2019-08-28Bibliographically approved

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