金属管件受冲击时的数值模拟和屈曲分析*

摘要

Based on the model of petroleum pipeline and water pipe in weapon system ,the process of energy absorption and stress when hitted by the impact of body is simulated .The process selects the big damgebody ,respectively simulates the dynamic response of the impact peak and energy absorption .The results show that the square body to pipe damage is the lar‐gest .And the higher the density ,the greater the peak ,energyabsorption ,more violent shocks .%论文以武器系统中的输油输水管件为模型，模拟了管件受到破片或子弹等冲击体作用时的能量吸收和受力等方面的特性。分析过程选取了对管件损伤最大的弹型破片，并分别模拟了不同形状的冲击体对输油、输水管件造成的冲击力峰值的大小和管件吸收能量的动态响应。结果表明，方形冲击体对于管件的损伤最大；而且，填充的液体密度越大时，管件受冲击力峰值越高，吸收的能量越多并且震荡也剧烈。