Abstract:

The dynamic whiplash test of the second row seats in CNCAP is the first whiplash test item proposed in the international NCAP evaluation system， which leads to the lack of awareness of the OEMs and high attention. In order to deeply understand the second row seat whiplash test， 226 groups of sample data are collected in this paper. Through classification and summary， the dispersion laws of the static measurement parameters of whiplash， such as the head back clearance， the headrest height， the seat torso angle and the dynamic score of the second row seats whiplash are obtained， and the correlation between the static parameters and the dynamic score of whiplash is established. The results show that the scoring rate of the second row seat whiplash is low and the dispersion is high， with a poor performance in protection the human neck in the rear end collision accident as a whole. Optimizing the static parameters of seats can improve the whiplash injury index to some extent and the dynamic whiplash score of the second row seats. This study provides data support for OEMs to master the current situation of the second row seat whiplash， and has guiding significance for optimizing the second row seat whiplash protection performance.

Key words: whiplash test, test data, data analysis, correlation