摘要
为了得到准确的设计参数,笔者采用有限元软件ANSYS电磁–热–结构耦合场分析方法,对热双金属片的热弹性变形进行仿真,通过建立有限元模型,模拟脱扣器驱动部件在各种要求工况下的热–结构特性,分别得到电流为:100 A,120 A,150 A,720 A时,热双金属片温度、位移随通电时间的瞬态关系,避免了数值计算时热双金属片温度偏差引入的误差。
In order to get the accurate parameters, electromagnetic-thermal-structure FEM was used to simulate the interruption characteristics of the thermal-bimetal in the breaker. The finite element model is built to simulate the driving part in all specified conditions. The thermal-bimetals temperature and displacement is investigated under electric current 100 A, 120 A, 150 A ,720 A. The temperature error is avoided.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2004年第8期30-32,共3页
Electronic Components And Materials
关键词
电子技术
热双金属
断路器
有限元
仿真
electronic technology
thermal-bimetal
circuit breaker
finite element
simulation
