Prediction on Vehicle Crash Acceleration Based on Circle of Constant Acceleration Method

Abstract:

Vehicle crash acceleration was essential for automotive passive safety analysis. Especially in CAE analysis and sled test, B-pillar lower accelerations are considered as vehicle acceleration and often used as crash pulse to reproduce the real crash conditions. But for frontal offset impact, the magnitudes and directions of the B-pillars lower accelerations were significantly different,which made the selection of vehicle acceleration very complicate. In this paper,a prediction algorithm based on Circle of Constant Acceleration method that can calculate the acceleration of any point on vehicle was presented. And then it is verified with the full scale impact data. The results show that both the trend of the acceleration curves and the curve peak of the calculated value have a strong consistency with the measured value.

• Periodical: Applied Mechanics and Materials (Volumes 380-384)
• Pages: 51-54
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.380-384.51
• Online since: August 2013
• Authors: Zhi Xin Liu, Yue Zhang, Ming Jiang Wei
• Keywords: Circle of Constant Acceleration, Offset Impact, Vehicle Acceleration

References

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