高压电气设备地震时程响应分析

Study on Earthquake Responses of High-voltage Electrical Equipment

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 .

In this paper, the responses of different kinds of typical high-voltage equipment to typical seismic waves input are computed. The maximal displacements of the top porcelain insulators' top section and the maximal stresses of bottom porcelain insulators' bottom section are computed. The analysis shows that the method of earthquake response analysis is applicable for engineering.