论文部分内容阅读
在采用质量 -弹簧模型研究设备自振频率的基础上 ,应用空间结构有限元分析程序对几种典型高压电气设备在地震作用下的动力反应进行了计算 .利用直接积分法得到设备底部瓷套管根部的内力时程曲线 ,并找出相应的最大内力值 ,同时给出了设备顶部瓷套管的顶部位移最大值 .计算结果能较好地符合实际情况 ,可为电力设施的工程抗震提供参考 .
On the basis of studying the natural frequency of the equipment by using the mass-spring model, the dynamic response of several typical high-voltage electrical equipment under earthquake action was calculated by using the finite element analysis program of the space structure. The direct integration method was used to obtain the porcelain bottom casing The internal force history curve of the root and the corresponding maximum internal force value are obtained and the maximum displacement of the top of the porcelain casing at the top of the device is given.The calculated results can be in good agreement with the actual situation and can provide a reference for the seismic engineering of power facilities .