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Data from Five Staged Car to Car Collisions and Comparison with Simulations
Technical Paper
2000-01-0849
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
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.
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Authors
- Mark N. Bailey - Maclnnis Engineering Associates, Ltd.
- Jonathan M. Lawrence - Maclnnis Engineering Associates, Ltd.
- Stuart J. Fowler - Maclnnis Engineering Associates, Ltd.
- Peter B. Williamson - Maclnnis Engineering Associates, Ltd.
- William E. Cliff - Maclnnis Engineering Associates, Ltd.
- Jeff S. Nickel - Maclnnis Engineering Associates, Ltd.
Citation
Bailey, M., Lawrence, J., Fowler, S., Williamson, P. et al., "Data from Five Staged Car to Car Collisions and Comparison with Simulations," SAE Technical Paper 2000-01-0849, 2000, https://doi.org/10.4271/2000-01-0849.Also In
Accident Reconstruction: Analysis, Simulation, and Visualization
Number: SP-1491; Published: 2000-03-06
Number: SP-1491; Published: 2000-03-06
SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V109-6; Published: 2001-09-15
Number: V109-6; Published: 2001-09-15
References
- Fincham, W.F. Kast, A. Lambourn, R.F. The Use of a High Resolution Accident Data Recorder in the Field SAE 950351
- Montgomery, D.T. Siegmund, G.P. Verification of a Simple Vehicle Trajectory Model and Some Interesting Results Canadian Multidisciplinary Road Safety Conference VIII, June 14-16, 1993 Saskatoon, Saskatchewan.
- Cliff, W.E. Montgomery, D.T. Validation of PC-Crash - A Momentum-Based Accident Reconstruction Program SAE 960885
- Steffan, H. Moser, A. The Collision and Trajectory Models of PC-Crash SAE 960886
- SPECS - Canadian Vehicle Specifications System: A database distributed by the Road Safety and Motor Vehicle Regulation Directorate, Transport Canada, which lists dimensions for motor vehicles available in Canada.
- Maclnnis, D.D. Cliff, W.E. Ising, K.W. A Comparison of Moment of Inertia Estimation Techniques for Vehicle Dynamics Simulation SAE 970951
- Moser, A. Steffan, H. Automatic Optimization of Pre-impact Parameters Using Post-Impact Trajectories and Rest Positions SAE 980373
- Cliff, W.E. Bowler, J.J. The Measured Rolling Resistance of Vehicles for Accident Reconstruction SAE 990368
- Warner, C.Y., Friction Applications in Accident Reconstruction SAE 830612