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Analysis and optimization of the driver seat in whiplash test

Published:2015-04-07 author:DANG Xue-mang1，2，FANG Rui2，XIE Shu-gang2，YANG Li-ming1 Browse: 3339 Check PDF documents

Analysis and optimization of the driver seat in whiplash test

DANG Xue-mang1，2，FANG Rui2，XIE Shu-gang2，YANG Li-ming1

（1. Faculty of Mechanical Engineering and Mechanics，NingBo University，Ningbo 315211，China；

2. China Automobile Technology and Research Center，Tianjin 300300，China）

Abstract：Aiming at dummy's large neck injury in a whiplash test for a driver seat，the C-NCAP（2015）whiplash test procedures and

rating principles were summarized and the correlation between the neck injury criteria and the dummy neck movement response was

studied.The reason for losing in whiplash test was analyzed combined with the parameters affecting the seat whiplash performance. Finite

element model of the seat was built up and verified based on the diagnostic test results. The optimization design of the seat structure was

done based on the verified model. The results indicate that the trend and peak of the neck injury curvesare consistent with the test so that

the built-up model can predict the dummy neck movement response. The neck injury in whiplash test can be significantly improved by

optimizing the headrest and upper back stiffness and reducing the horizontal distance between the head and headrest to achieve the

design target.

Key words：seat；whiplash；neck injury；C-NCAP

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