期刊
INTERNATIONAL JOURNAL OF CRASHWORTHINESS
卷 26, 期 6, 页码 651-660出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/13588265.2020.1766644
关键词
BEV; topology optimization; ESL; passive safety; lightweight design
资金
- National Natural Science Foundation of China [51075187]
This study uses P5 as a prototype to conduct topology optimization and size optimization, improving the lightweight potential of EP5 while ensuring static stiffness and crashworthiness, and optimizing the front-end structure of the vehicle body.
Electric vehicles have become the main trend of the future development of the automotive industry due to their advantages such as energy conservation and environmental protection, strong acceleration capability, and low noise. This paper uses a volume-produced fuel passenger vehicle P5 as a prototype. Based on the given driving mode and traction battery pack layout of a battery electric vehicle (BEV) EP5, considering the static stiffness and crashworthiness simultaneously, the equivalent static load (ESL) method is used to perform multi-load topology optimization on the body-in-white (BIW) of the BEV. Then the load paths of EP5 are proposed. The front-end structures of the vehicle body are redesigned by using topology optimization and size optimization, which improve crashworthiness and fully tap the lightweight potential of EP5.
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