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Balancing structural and acoustic performance of sandwich panels for vehicle applications with topology, property, and size optimization
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Numerical acoustics. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0003-0198-6660
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Numerical acoustics. KTH, School of Engineering Sciences (SCI), Centres, VinnExcellence Center for ECO2 Vehicle design.ORCID iD: 0000-0003-1855-5437
2010 (English)In: 7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, ACCM-7 Organizing Committee , 2010, Vol. 2, 835-838 p.Conference paper, Published paper (Refereed)
Abstract [en]

Within this paper, a process for the design of a multifunctional sandwich body panel for vehicle applications is proposed. The method, presented with a case study, attempts to achieve a balance between structural and acoustic performance using numerical tools for topology optimization and combined size and property optimization. The goal of the work is to achieve an optimal distribution of traditional sandwich foam material and light weight acoustic foam within the core of the panel. The significance of the coupling between the panels inner face sheet and the acoustic foam is examined and proves to be a critical parameter in the design. An adaptation to existing topology optimization schemes is proposed to deal with the presence or absence of such a coupling. The results show promise in simplifying construction, reducing weight, and streamlining the assembly process.

Place, publisher, year, edition, pages
ACCM-7 Organizing Committee , 2010. Vol. 2, 835-838 p.
Keyword [en]
FEM, NVH, Sandwich structures, Topology optimization, Vehicle design
National Category
Applied Mechanics Vehicle Engineering
Identifiers
URN: urn:nbn:se:kth:diva-82474Scopus ID: 2-s2.0-84905497888ISBN: 978-163266075-6 (print)OAI: oai:DiVA.org:kth-82474DiVA: diva2:498268
Conference
7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010, Taipei, Taiwan, 15 November 2010 through 18 November 2010
Note

QC 20120420

Available from: 2012-02-11 Created: 2012-02-11 Last updated: 2015-04-21Bibliographically approved

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Wennhage, PerGöransson, Peter

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