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SIR Sensor Closure Time Prediction for Frontal Impact Using Full Vehicle Finite Element Analysis
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English
Abstract
This paper describes an analytical method to predict the sensor closure time for an airbag (Supplemental Inflatable Restraint - SIR) system in frontal impacts. The analytical tools used are the explicit finite element code, an in-house sensor closure time prediction program, and a full vehicle finite element model. Nodal point information obtained from the full vehicle finite element simulation is used to predict the sensor closure time of the airbag system. This analytical method can provide the important crash signature information for a SIR system development of a new vehicle program. In this paper, 0-degree frontal impacts at four different impact speeds with two different bumper energy absorption systems are studied using the non-linear finite element computer program DYNA3D. It is concluded that this analytical method is very useful to predict the SIR sensor closure time.
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Citation
Liu, J., "SIR Sensor Closure Time Prediction for Frontal Impact Using Full Vehicle Finite Element Analysis," SAE Technical Paper 930643, 1993, https://doi.org/10.4271/930643.Also In
References
- Kamal M. K. Lin K. H. “Collision Simulation” Modern Automotive Structural Analysis Kamal M. K. et. al. Van Nostrand Reinhold Company
- Ni C. M. Lin K. H. “A Mixed Method of Analysis for Vehicle Structure” Proceedings of the AIAA/ASME 18th Structures, Structural Dynamics, and Materials Conference B San Diego, CA 19 24 March 1977
- Benson D. J. Hallquist J. O. Igarashi M. Shimomaki K. Mizuno M. “The application of DYNA3D to Large Scale Crashworthiness Calculation” Proceedings of 1986 ASME International Computers in Engineering Conference and Exhibition Chicago, IL 1986
- Kaiser A. “Some Examples of Numerical Simulation in Vehicle Safety Development” Proceedings of the Eighth International Conference on Vehicle Structural Mechanics and CAE, paper no. 921074, SAE P-258
- Liu J. K. H. “Predicting SIR Sensor Closure Time Using Full Vehicle Finite Element Analysis” Crashworthiness and Occupant Protection in Transport Systems (ed. by Khalil et. al.), ASME Winter Annual Meeting 1991 195 206
- Igarashi M. “Truck and Bus Meeting and Exposition” Charlotte, NC November 6-9 1989
- Shkolnikov M. B. Bhalsod D. M. Tseng B. “Barrier Impact Test Simulation Using DYNA3D” ASME Winter Annual Meeting December 1989
- Hoffmann R. et. al. “Finite Element Analysis of Occupant Restraint System Interaction With PAM-CRASH” SAE paper no. 902325
- Wang J. T. “Recent Advances in Modeling of Pyrotechnic Inflators for Inflatable Restraint System” ASME publication 106 December 1989