Modeling and Analysis of Crash Pulse of Vehicle Body Based on Tipped Equivalent Square Wave Method

Author:

Liu Zhi Xin1,Shi Yong Wan1,Chen Hong1

Affiliation:

1. China Automotive Technology and Research Center

Abstract

Crash pulse is an important parameter that can directly reflect the process of vehicle crash. And it is found that there exists an interrelationship between crash pulses and injuries of occupants. In this paper, a method of crash pulse modeling named TESW was adopted to simplify the real crash pulse with several characteristic parameters and then 37 groups characteristic parameters were obtained from 37 crash pulses of full-scale frontal tests, subsequently correlation analysis of crash pulse of body and injury of occupant were performed. And several rules that how these characteristic parameters correlate injuries of occupants were summarized.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference7 articles.

1. M. Huang: Vehicle Crash Mechanics: CRC Press, (2002).

2. F. Denny Lee, F. D. Lee: The Effect of Crash Pulse Shape on Occupant Simulations, SAE Paper No. 2000-01-0460.

3. Zhiqing Cheng: Optimal Crash Pulse for Minimization of Peak Occupant Deceleration in Frontal Impact. SAE Paper No. 2006-01-0670.

4. Wu Jianping, Guy Nusholtz and Sukhbir Bilkhu: Optimization of Vehicle Crash Pulses in Relative Displacement Domain. International Journal of Crashworthiness, Vol. 7 No. 4, (2002).

5. Maria Krafft, Anders Kullgren, Anders Ydenius: The correlation between crash pulse characteristics and duration of symptoms to the neck. SAE Paper No. 2001-06-004.

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1. Full Frontal Car Crash Tests: Empirical Evidence about Shape of Deceleration Pulses;International Journal of Automotive Technology;2021-03-04

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