Design for Crashworthiness of Vehicle Structures via Equivalent Mechanism Approximations and Crush Mode Matching
dc.contributor.author | Hamza, Karim T. | en_US |
dc.contributor.author | Saitou, Kazuhiro | en_US |
dc.date.accessioned | 2011-11-14T16:29:47Z | |
dc.date.available | 2011-11-14T16:29:47Z | |
dc.date.issued | 2004-11-13 | en_US |
dc.identifier.citation | Hamza, K.; Saitou, K. (2004). Design for Crashworthiness of Vehicle Structures via Equivalent Mechanism Approximations and Crush Mode Matching." Proceedings of the ASME International Mechanical Engineering Congress and RandD Expo IMECE2004-62226: 949-960. <http://hdl.handle.net/2027.42/87204> | en_US |
dc.identifier.isbn | 0-7918-4705-5 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/87204 | |
dc.description.abstract | This paper presents a 3D extension to our previous work on vehicle crashworthiness design that utilizes equivalent" mechanism models of vehicle structures as a tool for the early design exploration. An equivalent mechanism (EM) is a network of rigid links with lumped masses connected by prismatic and revolute joints with nonlinear springs, which approximate aggregated behaviors of structural members during crush. A number of finite element (FE) models of thin-walled beams with typical cross sections and wall thicknesses are analyzed to build a surrogate model that maps the beam dimensions to nonlinear spring properties. Using the surrogate model, an EM model is optimized for given design objectives by selecting the nonlinear springs among the ones realizable by thin-walled beams. The optimum EM model serves to identify a good crash mode (CM), the time history of collapse of the structural members, and to suggest the dimensions of the structural members to attain it. After the optimization, the FE model of an entire structure is "assembled" from the suggested dimensions, which is further modified to attain the good CM identified by the optimum EM model. A case study of a 3D vehicle front half body demonstrates that the proposed approach can help obtain good designs with far less computational resources than the direct optimization of a FE model. | en_US |
dc.publisher | ASME | en_US |
dc.title | Design for Crashworthiness of Vehicle Structures via Equivalent Mechanism Approximations and Crush Mode Matching | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Mechanical Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Mechanical Engineering | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/87204/4/Saitou82.pdf | |
dc.identifier.doi | 10.1115/IMECE2004-62226 | en_US |
dc.identifier.source | Proceedings of the ASME International Mechanical Engineering Congress and RandD Expo | en_US |
dc.owningcollname | Mechanical Engineering, Department of |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.