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为了抵御外部事件,核电站厂房外墙通常设计为钢筋混凝土结构。基于荷载时程分析法,运用经典的显式非线性动力分析软件ANSYS/LS-DYNA,对波音707-320型号商用飞机撞击某钢筋混凝土结构安全壳筒身的最不利部位进行筛选分析,并对最不利撞击部位受到撞击情况下的冲击响应予以分析。计算结果表明,对于此安全壳结构,距离地面35 m处是其最不利撞击部位,并且即使在筒身最不利撞击部位受到冲击作用下,像波音707-320型号的商用飞机对该安全壳的整体稳定影响是较小的。
In order to resist external events, the external walls of NPP plant are usually designed as reinforced concrete structures. Based on the load time history analysis method, the most unfavorable location of the shell of a reinforced concrete structure was hit by the classic explicit nonlinear dynamic analysis software ANSYS / LS-DYNA. The most unfavorable impact site is analyzed for the impact response under impact. The results show that for this containment structure, 35 m away from the ground is the most unfavorable impact location, and even under the impact of the most unfavorable impact location of the shell body, the commercial aircraft like Boeing 707-320 model of the safety shell The overall stability impact is smaller.