Calculation of Dynamic Stress-Time History for a Vehicle Using Flexible Body Dynamics Model

유연체 동력학 모델을 이용한 차량의 동응력-시간선도 계산

Under the rapid change of a new vehicle model, it is necessary to develop a durability analysis technique using computer simulation. In order to do this. reliable dynamic stress-time history for the vehicle components must be calculated on various road conditions. In this paper, a full vehicle simulation model which is composed of flexible frame and chassis components is proposed and verified its reliability from the comparison with field test data. Finally, dynamic stress-time history on the rear chassis components is predicted with hybrid and modal superposition method.