电器与能效管理技术 ›› 2020, Vol. 588 ›› Issue (3): 8-13.doi: 10.16628/j.cnki.2095-8188.2020.03.002

• 研究与分析 • 上一篇    下一篇

塑壳断路器操作机构疲劳寿命仿真研究

马龙涛1, 戴铭磊2   

  1. 1.国网西安供电公司, 陕西 西安 710032;
    2.西安交通大学 电力设备电气绝缘国家重点实验室, 陕西 西安 710049
  • 收稿日期:2019-10-23 出版日期:2020-03-30 发布日期:2020-04-21
  • 作者简介:马龙涛(1976—),男,高级工程师,主要从事电力系统自动化和设备检测。戴铭磊(1996—),男,硕士研究生,研究方向为低压电器。

Research on Fatigue Life Simulation of Operation Mechanism of Molded Case Circuit Breaker

MA Longtao1, DAI Minglei2   

  1. 1.State Grid Xi'an Power Supply Company, Xi'an 710032, China;
    2.State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University,Xi'an 710049, China
  • Received:2019-10-23 Online:2020-03-30 Published:2020-04-21

摘要: 为了准确地评估塑壳断路器操作机构的疲劳寿命,本文基于刚柔耦合分析、材料的抗疲劳性能理论及疲劳累积损伤理论,主要利用刚体动力学软件ADAMS及疲劳分析软件nCode,建立了塑壳断路器操作机构疲劳寿命仿真模型。通过仿真分析,得到了塑壳断路器主要部件的疲劳寿命及薄弱点,完成了主要部件的材料选型,验证了疲劳寿命仿真方法的可行性。

关键词: 塑壳断路器, 操作机构, 刚柔耦合, 动态应力, 疲劳极限, 疲劳寿命仿真

Abstract: In order to accurately evaluate the fatigue life of the operating mechanism of molded case circuit breaker (MCCB),a fatigue life simulation model for the operation mechanism of MCCB was established with software Solidworks,finite element analysis software,rigid body dynamics software ADAMS and fatigue analysis software nCode,based on rigid-flexible coupled theory,fatigue resistance theory and cumulative fatigue damage theory.With the simulation model,the fatigue life and weaknesses of the three main components of MCCB were obtained,the material selection of the main components was completed,and the feasibility of the proposed fatigue life simulation method was verified.

Key words: molded case circuit breaker (MCCB), operating mechanism, rigid-flexible coupling, dynamic stress, fatigue limit, fatigue life simulation

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