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A Parametric Evaluation of Vehicle Crash Performance
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English
Abstract
This paper describes the behavior of a driver side occupant restrained by airbag system on a passenger vehicle at a frontal barrier crash. In order to secure effective occupant protection at collisions, it is necessary to conduct close examination into the movement of steering system due to the rearward movement of dashboard as well as vehicle deformation characteristics, generally for vehicles whose crash space at engine compartment is small.
The authors examine the influence of these two parameters on occupant injury indices using MADYMO 2D computer simulation program.
As a result, it is found important to model the axial collapse and the rotation of steering system in the vertical plane caused by dashboard deformation, in order to achieve good correlations between experiment and simulation.
It is demonstrated. That the parametric study clarifies the influence of the vehicle deformation characteristics which is represented by a combination of two simplified trapezoids, as well as of the movement of steering system, On effective occupant protection for an exampled vehicle.
The results of the simulation are validated by the full scale vehicle crash test.
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Authors
Topic
Citation
Matsumoto, H., Sakakida, M., and Kurimoto, K., "A Parametric Evaluation of Vehicle Crash Performance," SAE Technical Paper 900465, 1990, https://doi.org/10.4271/900465.Also In
Emerging Technologies in Vehicle Cae and Structural Mechanics
Number: SP-0820; Published: 1990-02-01
Number: SP-0820; Published: 1990-02-01
Vehicle Crashworthiness and Occupant Protection in Frontal Collisions
Number: SP-0807; Published: 1990-02-01
Number: SP-0807; Published: 1990-02-01
References
- Chou C. C. et al “MVMA-2D Air Bag/Steering Assembly Simulation Model” SAE paper 800298 1980
- Nieboer J. J. et al “Status of the MADYMO 2D Airbag Model” 32 nd Stapp Cat Crash Conference Atlanta, USA 1988
- MADYMO User's Manual 2D, Version 4.2,TNO The Hague, NL 1988
- MADYMO Databases, Version 4.2, ‘[’NO The Hague, NT 1988
- Kurimoto K. et al “The Evaluation of the Influence of Vehicle Crashworthiness and Interior Parts on Occupant Injury” SAE paper 892009 1989
- Shimamura M. et al. “An Occupant Movement Analysis Using Improved Input Data for MVMA2D Simulation” SAE paper 870332 1987
- Wang J. T. et al “A New CAL3D Airbag Inflation Model” SAE 880654 1988
- Katoh H. et al “A Study of Ride-Down Evaluation” Pr.c. of 9th ESV Conf. 190 195 1982