滑动金具对互连高压电气设备抗震性能的影响分析

Analysis of Influence of Sliding Fittings on Seismic Performance of Interconnected High Voltage Electrical Equipment

硬管母连接电气设备结构系统可以有效解决温度变化引起的变形,同时也可以减轻相互连接设备的动力耦合作用。采用具有低周反复滞回特性与耗能能力的滑动金具等方式连接硬管母,对相互连接设备的抗震性能影响较大。文中以某高压直流场回路系统为主要研究对象,简要介绍分析方法,建立有限元模型,并提出具体的仿真分析步骤。通过分析不同连接方式下直流回路系统在常规抗震设计地震工况下的应力,并对关键部位进行强度校核,综合研究了连接方式对高压回路系统的动力特性与抗震性能的影响,得出了有益结论。仿真分析结果可为电力工程设计与抗震加固提供参考。

The structural system of electrical equipment connected with the hard tube can effectively solve the deformation caused by temperature variation, and also can reduce the dynamic coupling interaction between connected devices. Influence on the seismic performance of interconnected equipment is great by ways of sliding fittings, which has the characteristics of low cycle hysteresis and energy dissipation, or other connection mode to connect the hard tube. In this paper, we mainly researches on a high voltage DC field circuit system, the analysis method and the establishment of the finite element model are briefly introduced, and the concrete steps of simulation analysis is put forward. By analyzing the stress, which is under seismic conditions of conventional seismic design, of the DC circuit