Data from five staged car to car collisions and comparison with simulations.

Author(s)
Bailey, M.N. Lawrence, J.M. Fowler, S.J. Williamson, P.B. Cliff, W.E. & Nickel, J.S.
Year
Abstract

Five collisions were staged in order to evaluate PC-Crash, a simulation program used for investigating motor vehicle collisions. Both vehicles were moving in all of the staged collisions at 1:1 or 2:1 speed ratios. Pre-impact speeds ranged from 19 to 56 km/h. Two separate methods were used to test the validity of the simulation program. Firstly, collision parameters were calculated from measured data, and used as input to the PC-Crash collision model. Secondly, the post-impact vehicle paths and rest positions were used to determine the pre-impact speeds. There was agreement between measured and simulated collision dynamics. Using the PC-Crash "Optimizer" to reconstruct the five collisions, the error in calculated pre-impact speeds of the ten vehicles ranged from -3.3 to +4.1 km/h. Vehicle speeds were determined based on post-impact rotation and paths, without detailed information on the braking from each wheel or the actual collision coefficient of restitution. (A)

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Publication

Library number
C 15784 (In: C 15766 [electronic version only]) /80 / ITRD E106558
Source

In: Accident reconstruction : analysis, simulation, and visualization : papers presented at the SAE 2000 World Congress, Detroit, Michigan, March 6-9, 2000, SAE Technical Paper 2000-01-0849, p. 361-385, 9 ref.

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