【摘要】 根据振动方程得到了板壳结构在冲击载荷作用下的响应及其数字特征,基于首次超越破坏机制,建立了板壳结构在冲击载荷作用下的极限状态方程,采用泊松分布方法分析了动力可靠性。最后以某舰局部甲板承受随机冲击为工程背景,对其板壳结构进行了振动可靠性分析。更多还原

【Abstract】 On the basis of vibration equation the response and its numerical characteristics of plate shell structure under the action of impact load were obtained. Based on the mechanism of first transcending damage,the limit state equation of plate shell structure under the action of impact load was established. The dynamic reliability was analyzed by the use of Poisson distribution method. Finally,taking the bearing of random impact on partial deck of certain warship as an engineering background the vibration reliability analysis on its plate shell structure was carried out.更多还原