The current automotive seats are mainly manufactured by steel that increases the vehicle weights, fuel consumption and CO2 emissions, and hence, lightweight carbon fiber-reinforced polymer (CFRP) will be a prospective substitute material. The integrated design method of a CFRP seat backrest will be studied and verified numerically. On the condition that the unchangeable seat dimensions and previous mounting positions on the floor, a three-dimensional CAD conceptual model in which the design and non-design domains were separated was established firstly, and then, the optimal material distribution in the design domain was determined by topology optimization technology according to the ECE (European Union standards) test standard. Next, the positions of ribs are determined and the manufacturing feasibility was verified numerically. Finally, the finite element model of the CFRP seat backrest was established, and static bending stiffness and crashworthiness were analyzed and the simulation results were compared with the previous all-steel structure. It is demonstrated that a 20.4% weight reduction is achieved, and previous 26 steel components could be replaced by only one CFRP component and no additional assembly is required. Both the static and impact test standards are satisfied.
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ASME 2015 International Mechanical Engineering Congress and Exposition
November 13–19, 2015
Houston, Texas, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5755-7
PROCEEDINGS PAPER
A Case Study: Design of an Automotive Seat Backrest by Carbon Fiber Reinforced Plastics
Haizhu Zhang,
Haizhu Zhang
Beihang University, Beijing, China
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Dingxin Leng,
Dingxin Leng
Beihang University, Beijing, China
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Bincheng Huang,
Bincheng Huang
Beihang University, Beijing, China
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Ligang Wang
Ligang Wang
Society of Automotive Engineers of China, Beijing, China
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Haizhu Zhang
Beihang University, Beijing, China
Lingyu Sun
Beihang University, Beijing, China
Dingxin Leng
Beihang University, Beijing, China
Bincheng Huang
Beihang University, Beijing, China
Ligang Wang
Society of Automotive Engineers of China, Beijing, China
Paper No:
IMECE2015-50821, V012T15A010; 7 pages
Published Online:
March 7, 2016
Citation
Zhang, H, Sun, L, Leng, D, Huang, B, & Wang, L. "A Case Study: Design of an Automotive Seat Backrest by Carbon Fiber Reinforced Plastics." Proceedings of the ASME 2015 International Mechanical Engineering Congress and Exposition. Volume 12: Transportation Systems. Houston, Texas, USA. November 13–19, 2015. V012T15A010. ASME. https://doi.org/10.1115/IMECE2015-50821
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