基于PDT的断路器保持弹簧可靠性分析  

Reliability Analysis of Keeping Spring of Circuit Breaker Based on PDT

作　　者：周勇[1] 周北岳[1] 李荣华[1] 

机构地区：[1]湖南理工学院,湖南岳阳414000

出　　处：《低压电器》2009年第11期10-13,共4页Low Voltage Apparatus

基　　金：湖南省科技计划项目资助(06FJ3142;2008GK3064;2008GK3057);湖南省教育厅项目资助(03C161);岳阳市科技计划项目资助(岳市财企指[2007]3号)

摘　　要：采用ANSYS软件建立了断路器螺旋拉伸保持弹簧的有限元模型,求得了弹簧在位移冲击作用下的应力分布情况。讨论了基于ANSYS的Monte Carlo统计分析技术确定弹簧应力分布规律的基本原理和方法。研究了SW6-110IW型保持弹簧在位移冲击下的强度可靠性,得出了冲击位移与弹簧最大应力之间的关系。研究结果对断路器弹簧操动机构的优化设计有参考价值。The finite element model of stretching corkscrew keeping spring of circuit breaker was created by ANSYS software to educe the stresses distribution of spring under displacement impact. Then the probabilistic ana- lysis theory according to Monte Carlo statistical method was introduced. And the strength reliability was also studied with the sample of SW6-110IW keeping-spring to obtain the relation between impact displacement and spring maxi- mal stress. The study results can help the optimization design of spring actuators in circuit breakers.

关 键 词：断路器 有限元 保持弹簧 操动机构 强度 

分 类 号：TM561[电气工程—电器]