利用模态迭加法进行动响应分析应注意的问题

Several problems in solving dynamic response ofstructure by using modal superposition method

采用MSC-MARC程序的模态迭加法,对具有指数规律冲击载荷作用下的简支矩形板进行了响应计算,指出并讨论了应用模态迭加法求解结构动响应时应注意的几个问题.

Using modal superposition method of MSC-MARC program, the dynamic response of a simple\|supported plate under the impact load which is an exponential function is computed. It is pointed out that attention must be paid to several problems in solving the dynamic response of structure.