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车辆与弯道混凝土护栏碰撞的动态数值模拟及试验

, PP. 102-106

Keywords: 交通工程,车辆碰撞,实车足尺碰撞试验,弯道混凝土护栏,有限元模拟,乘员安全

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Abstract:

?对车辆与弯道混凝土护栏碰撞动态数值模拟结果和实车足尺碰撞试验结果进行对比分析,从车辆行驶轨迹、乘员冲击加速度以及车辆损伤形态3个方面,验证了动态数值模拟的准确性,并分析了弯道混凝土护栏曲线半径对乘员碰撞过程中所承受冲击加速度的影响;得到乘员风险的最不利护栏半径。结果表明:有限元仿真是进行汽车护栏碰撞研究的有效方法;弯道处护栏的形式对碰撞时乘员的安全有很大影响。

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