【摘要】 本文建立了某型轿车的白车身碰撞分析有限元模型,并从多个角度提出了提高计算效率的方法。以此模型进行了以50km/h速度与刚性墙正面碰撞的数值计算,仿真计算的变形结果和实验数据吻合较好。本文分析了加速度和速度曲线整车实验和白车身仿真结果的异同及其原因,并进一步讨论了汽车碰撞中结构吸能的若干问题,其结果有助于进一步开展整车碰撞仿真计算。更多还原

【Abstract】 White body is modeled for car crashworthiness simulation in this paper. Six methods from different angle is proposed to minimize CPU time. A calculation of 100% overlap car to rigid barrier frontal impact at 50 km/h is performed. Consensus is found by comparing simulation result and test result. Acceleration curve and velocity curve of both simulation and test are compared. The difference is discussed. Several problems in crash energy management are also discussed in this paper.更多还原