蓄电池支架结构抗震性能分析

Seismic Analysis of a Battery Bracket Structure

蓄电池是核电厂事故工况下的备用电源系统,支架结构是固定蓄电池组的主要构件.在地震作用下支架结构的完整性直接影响到核电厂控制系统安全相关功能的正常执行.本文应用大型通用有限元程序建立了蓄电池组结构的有限元计算模型,对蓄电池支架结构进行了模态分析和反应谱法地震响应分析,计算结果表明所分析的蓄电池支架结构各主要部件及紧固件应力均满足我国现行核设备抗震规范要求.

Battery is an important facility in direct - current power supply system of a nuclear power plant and the bracket structure is also the main component to fix the storage battery. Whether the bracket structure can work effectively under the circumstances of earthquake has a great impact on the safety of a nuclear power plant. In this paper, a finite element modal of battery structure was established through lhe application of the finite ele- ment software and the viabration characteristics and seismic response were calculated and analyzed. The results can meet the standard requirements.