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Vehicle crash optimization considering a roof crush test and a side impact test

Title
Vehicle crash optimization considering a roof crush test and a side impact test
Author
박경진
Keywords
Crash optimization; structural optimization; equivalent static loads method; enforced displacement method; side impact test; roof crush test
Issue Date
2019-09
Publisher
SAGE PUBLICATIONS LTD
Citation
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING, v. 233, No. 10, Page. 2455-2466
Abstract
The vehicle performances for the side impact test and the roof crush test are dependent on the side structure design of a vehicle. Crash optimization can be employed to enhance the performances. A meta-model-based structural optimization technique is generally utilized in the optimization process since the technique is simple to use. However, the meta-model-based optimization is not suitable for problems with many design variables such as topology and topometry optimizations. A crash optimization methodology is proposed to consider both the side impact test and the roof crush test. The equivalent static loads method is adopted for the side impact test and the enforced displacement method is adopted for the roof crush test, and the two methods are integrated. A design formulation is defined. The survival distance from the side impact test and the roof strength for the roof crush test are used for the design constraints. Crash optimization is performed for a practical large-scale structure. For conceptual design, reinforcement of the B-pillar is determined by using topometry optimization, and size and shape optimizations are employed for a detailed design to satisfy the design constraints while the mass is reduced.
URI
https://journals.sagepub.com/doi/full/10.1177/0954407018794259https://repository.hanyang.ac.kr/handle/20.500.11754/120857
ISSN
0954-4070; 2041-2991
DOI
10.1177/0954407018794259
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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