Abstract
Reconstruction of car accidents is a complex task, with many unknown variables. Among the parameters used to assess the accident severity, in case of a frontal collision between two vehicles, are the change in velocity (delta-v) and the Energy Equivalent Speed (EES). The EES is usually determined based on the deformations. Delta-v can be obtained from the crash pulse recorded with Event Data Recorders, or with crash loggers based on accelerometers, in case of crash tests. In this paper is presented a full scale crash test that involves two vehicles in a frontal collision. The results are obtained using different analysis methods: direct application of a model, processing the measured crash pulse, and computer simulation.
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Abbreviations
- EES:
-
energy equivalent speed, m/s
- S :
-
momentum, kg·m/s
- S ix, y :
-
momentum of vehicle i, in direction x or y
- m ix, y :
-
mass of vehicle i, direction x/y, kg
- v ix, y :
-
velocity of vehicle i, direction x/y, before impact, m/s
- v′ix, y :
-
velocity of vehicle i, direction x/y, after impact, m/s
- SR:
-
speed ratio
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Dima, D.S., Covaciu, D. Vehicles Frontal Impact Analysis Using Computer Simulation and Crash Test. Int.J Automot. Technol. 20, 655–661 (2019). https://doi.org/10.1007/s12239-019-0062-3
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DOI: https://doi.org/10.1007/s12239-019-0062-3