Reliability analysis of human-ground friction coefficient for vehicle-pedestrian traffic accident

PDF(1381 KB)

Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (12) : 219-224.

ZHANG Xiaoyun1 YANG Xiaobo1 ZHANG Dongming1 HOU Xinyi2

Author information +

History +

Abstract

Traditionally, friction coefficient between human and ground, combining with various other parameters is considered as a constant to predict the pre-impact velocity of a car.It is impossible to accurately determine all these parameters used for simulation since there are uncertain factors at the accident scene.A method of constructing the relationship between calculation result and human-ground friction coefficient was proposed in this paper.By using the site measurement data and numerical simulation, we built a reliability analysis model related to the human-ground friction coefficient.Quantitatively analysis on the effect of reconstruction result and human-ground friction coefficient was conducted based on the above model.A 0.95 confidence interval of pre-impact velocity of car was also presented at last.Our analysis indicates that the friction coefficient between human and ground is of great significance for the estimation of the pre-impact velocity.That also reminds us reducing the error of friction coefficient measurement can help with obtaining a much more reliable result in vehicle-pedestrian contact collision accident reconstruction.

Key words

pedestrian / accident reconstruction / friction coefficient / reliability analysis / numerical simulation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZHANG Xiaoyun1 YANG Xiaobo1 ZHANG Dongming1 HOU Xinyi2. Reliability analysis of human-ground friction coefficient for vehicle-pedestrian traffic accident[J]. Journal of Vibration and Shock, 2019, 38(12): 219-224

References

[1] 邹铁方, 彭海涛, 肖璟等.区间痕迹下事故再现结果不确定性分析的改进仿射法[J]. 振动与冲击, 2017, 36(16): 68-72. Tiefang Zou, Haitao Peng, Jing Xiao, et al. A modified affine arithmetic for analyzing uncertainty of reconstructed results in traffic accidents with interval traces [J]. Journal of Vibration and Shock, 2017, 36(16): 68-72.
[2] Zhang X Y, Hu Z, Du X P. Probabilistic inverse simulation and its application in vehicle accident reconstruction [J]. ASME Journal of Mechanical Design, 2013, 135(12), paper number: 121006.
[3] 王蕊, 张晓云, 冯浩等. 大客车侧翻碰撞护栏事故仿真分析及改进[J]. 振动与冲击, 2014, 33（6）：40-43
Wang R, Zhang X Y, Feng H, et al. Simulation and improvement of bus rollover against barrier [J]. Journal of Vibration and Shock, 2017, 36(16): 68-72.
[4] 张晓云, 金先龙, 柴象海等. 基于接触特征的车—人碰撞事故模型构建与分析[J], 机械工程学报, 2012, 48(14):104-111.
Zhang X Y, Jin X L, Chai X H, et al. Modeling and analysis method of vehicle-pedestrian crash accidents based on contact characters [J]. Journal of Mechanical Engineering, 2012, 48(14): 104-111.
[5] Martínez F, Páez J, Furones A, et al. Pedestrian-Vehicle Accidents Reconstruction with PC-Crash®： Sensibility Analysis of Factors Variation [J]. Transportation Research Procedia, 2016, 18:115-121.
[6] 阳兆祥. 道路交通事故车速鉴定的方法和案例选析[M]. 机械工业出版社, 2016:102-107.
Yang Z X. Method and case analysis of vehicle speed identification in road traffic accidents [M]. China Machine Press,2016:102-107 .
[7] Zhang Y G, Xu J M, Zou T F, et al. A Method for Reconstructing Vehicle - Vehicle Impact Accidents Based on Pc-Crash[J]. Applied Mechanics & Materials, 2014, 641-642:799-804.
[8] 胡林, 戴兴兴, 黄晶,等. 轿车-行人碰撞事故再现模型参数敏感性研究[J]. 汽车工程, 2017, 39(2).
Lin H, Dai X, Jing H, et al. A Study on Parameter Sensitivity in Accident Reconstruction Model for Car-pedestrian Crash[J]. Automotive Engineering, 2017, 39(2):159-167.
[9] Paul B J, Bina T, Rahim A. Simulations of Pedestrian Impact Collisions with Virtual CRASH 3 and Comparisons with IPTM Staged Tests[J]. Physics, 2015, 4(4):S9–S10.
[10] 刘惟信. 机械可靠性设计[M]. 清华大学出版社1, 2000:157-159.
Liu W X. Mechanical reliability design [M],Tsinghua University Press 1,2000:157-159.