电磁继电器触簧系统振动加速度的分析方法

电磁继电器触簧系统固有振动频率和极限加速度是衡量其力学环境防护性能的两个重要指标。综合分析了静触簧为刚性结构和柔性结构的触簧系统，建立其抗振性分析数学模型，给出了簧片振动加速度的解析表达式及检验电磁继电器触簧系统抗振性的合理判据。通过分析影响电磁继电器触簧系统振动加速度的相关因素(主要包括材料特性参数、尺寸参数、触点初压力、触点质量)，得出了若干有关提高电磁继电器触簧系统抗振性能的重要结论。这些结论可为电磁继电器机械反力系统参数优化设计提供理论基础。

Analysis Method for Vibration Acceleration of Electromagnetic Relay

Natural frequency and extreme vibration acceleration are the two major parameters that determine the protective performance of electromagnetic relay (EMR) under mechanics environment conditions. The spring system with rigid stationary springs or flexible springs is analyzed and its anti-vibration mathematic model is developed. Based on this model, expression for spring vibration acceleration and reasonable criteria for verifying the anti-vibration spring system are given. By analyzing relative factors that have effect on spring vibration acceleration (including material characteristic, size parameters, contact initial pressure, contact mass), how to improve the spring system anti-vibration ability of EMR is investigated. The conclusions can be used as a guide line of the optimal design of the spring system for EMR.