Luggage Impact and Structure Optimization for Rear Seat Frame of Automobile

Abstract:

It is essential that the back seat of a vehicle has to be designed safely and reliably and at the same time meet the ECE R17, as to reduce the back seat casualties in accidents caused by luggage impact. This paper studies a sample of back seat frame and establishes its precise CAD model. It adopts nonlinear finite element methodology to simulate the object under the ECE R17. The results reflect two problems. One is the force absorption and anti-deformation of the split seat frame is too weak; the other is the fixed connections linking the frame to the holder is not tight enough causing easy fall-off if being shocked. The test and simulation results suggest the following alterations, respectively to substitute the previous split seat frame for a one-piece seat frame as to improve the overall stiffness and anti-deformation, to adopt one-piece structure on the center support bracket and increases its thickness by 0.5mm, keep the remaining mounting bracket structure unchanged. The analyses of the improved program demonstrate its superior anti-deformation under the regulations.

• Periodical: Key Engineering Materials (Volume 693)
• Pages: 155-162
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.693.155
• Online since: May 2016
• Authors: Zhi Ping Wang*, Jin Ting Ni, Xin Zhang
• Keywords: Back Seat, Crash Safety, Luggage Impact, Simulation Analysis

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