Multi-objective reliability design optimization of a novel side door negative Poisson’s ratio impact beam
By possessing a good capacity for energy absorption and a lightweight structure, the negative Poisson’s ratio (NPR) structure has very fine prospects for application in vehicle engineering. By combining the traditional side door impact beam and a NPR structure, a novel side door NPR impact beam is first proposed in this work to improve the side impact crashworthiness in automobiles. The performance of the side door NPR impact beam is first studied in detail by comparison with a traditional side door impact beam and aluminum-foam-filled impact beam. To make further improvement on the performance of the side door NPR impact beam, the multi-objective design optimization while considering reliability is also investigated in this work. The parametric model of the NPR structure is established to improve modeling efficiency when the shape and topology are changed. A Latin hypercube sampling technique, orthogonal design, and a response surface model are then combined to construct the surrogate models. A radial-based importance sampling technique (RBIS) and multi-objective particle swarm optimization algorithm (MOPSO) are applied in the inner and outer loop respectively to find the optimal multi-objective reliability solutions. The results indicate that the side impact crashworthiness is improved remarkably by the side door NPR impact beam and the structure is further improved by the multi-objective reliability optimization. The studies in this work also serve as a good example for other improvements in automobile performance.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/09544070
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Supplemental Notes:
- Reprinted by permission of Sage Publications, Ltd.
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Authors:
- Zhou, Guan
- Zhao, Wanzhong
- Ma, Zheng-Dong
- Wang, Chunyan
- Wang, Yuanlong
- Publication Date: 2018-8
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 1196-1205
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Serial:
- Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
- Volume: 232
- Issue Number: 9
- Publisher: Sage Publications Limited
- ISSN: 0954-4070
- EISSN: 2041-2991
- Serial URL: http://pid.sagepub.com/content/current
Subject/Index Terms
- TRT Terms: Beams; Crashworthiness; Crashworthiness; Design; Doors (Vehicles); Optimization; Poisson ratio; Side crashes
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 01678664
- Record Type: Publication
- Files: TRIS
- Created Date: Aug 27 2018 2:04PM