温度对真空断路器机械阻尼的影响分析  

Research on Mechanical Damping of Vacuum Circuit Breaker Influenced by Temperature

作　　者：晁雪薇 张鹏[1] 田宇[1] 董恩源[1] 邹积岩[1] 

机构地区：[1]大连理工大学电气工程学院,辽宁大连116024

出　　处：《组合机床与自动化加工技术》2017年第2期22-25,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家自然科学基金重点项目(51337001);国家自然科学基金项目(51277019)

摘　　要：在对真空断路器动作特性受温度影响的研究中遇到了机械阻尼无法量化的问题,针对这一问题,提出了样机实验和ANSYS仿真相结合的方法对机械阻尼进行量化分析研究。通过对真空断路器进行温度实验,分析仿真与样机实验结果间的偏差,得到机械阻尼随温度的变化规律,并运用MATLAB拟合得到各温度下阻尼与行程间的关系公式。研究表明:断路器合闸动作初始位置处阻尼随环境温度升高单调减小,运动最终位置处阻尼随温度升高先减小后小幅增大,拟合所得机械阻尼与行程公式的系数与温度符合高斯分布。研究结果可为考虑温度影响的断路器研制设计提供指导。M echanical damping is one of the main variables affect the action characteristic of vacuum circuit breaker,its value is difficult to measure and easily affected by ambient temperature. To solve this problem,the method of combining the prototype experiment and ANSYS simulation is proposed. A series of temperature tests were carried out,including prototype texts and simulation texts based on ANSYS Maxwell. Explore the law of motion damping changing with temperature,and the formula of the relationship between damping and stroke position. Research shows that: When temperature change,the damping of closing initial position monotonically decrease with temperature rise,damping of final position decreases first and then increases with temperature rise,the relationship between temperature and formula ratio of mechanical damping and stroke conforms to the Gauss distribution. Using the conclusions of this study can provide guides for the design of circuit breaker considering the influence of temperature.

关 键 词：温度实验 机械阻尼 误差补偿 真空断路器 

分 类 号：TH162[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]