シミュレーションによる衝突安全性能向上のためのコンポーネント特性の最適化

抄録

The purpose of this study wasthe optimization of vehicle component Characteristics to increase the passengers' sunvival space in collisions. A one-dimensionalnon-linear spring and mass model was used to simulate a truck undergoing a fronta barriertest. There are many more variations between different truck models than between different passenger automobile models, includding larged differences in platform Structure and payload capacity. Traditional methods select presumed worst-case conditions from all possible combinations of factors and Carry Out a tuning process to increase the survival space. These tuning methods, however, deal with only a single variation, and do not show Whether the tuning result will work for other variations. The authors therefore carried out a parameter design process in which differences in component weights in different variations and changes in strength characteristics due to deterioration were considered. The parameter design process was iterated by checking closely spaced leves of the control factors to find the optimal direction. This method enabled the optimal conditions to be estimated while maintaining the reproducibility of the gain.