机械参数对弹簧质量块式加速度开关精度影响分析  

The Analysis of G-awitch Acceleration Performance Caused by Mechanical Parameters

作　　者：刘靖雷[1] 黄伟[1] 王立武[1] 卢齐跃[1] 

机构地区：[1]北京空间机电研究所,北京100094

出　　处：《科学技术与工程》2016年第10期39-43,62,共6页Science Technology and Engineering

基　　金：国家863项目(2008AA12A205)资助

摘　　要：针对弹簧质量块式加速度开关普遍存在过载值精度低、生产调试过程中动作过载值易发生偏移问题。文章对典型压缩弹簧质量块式加速度开关建立了力学方程,分析了弹簧弯曲角度、摩擦系数等机械参数对加速度开关的过载性能影响。得出压缩弹簧质量块式加速度开关的弹簧弯曲角度及摩擦系数对加速度开关过载性能的影响规律。得出加速度开关质量块与导向结构之间的摩擦系数ε<0.04,加速度开关的压缩弹簧与导向结构中心轴之间的夹角θ1和θ2绝对值小于3°,能够使得加速度开关合格率达到90%以上的结果,对于产品生产控制提供了参考数据。Mechanical acceleration switch（ also known as G switch） is widely used in satellite and weapon type,for powering trajectory control.Acceleration switch generally use spring-mass structure.Acceleration switch prevailing overload value lower accuracy,the production process is easy to shift the overload value problem.Aiming to establish some form of acceleration switch the force equation.For spring bending angle,the impact of the overload performance coefficient of friction and other mechanical parameters were analyzed acceleration switch.Draw two springs and a friction coefficient of the structure acceleration switch acceleration switch over to the influence of load performance.Analysis of the compression spring mass acceleration switch has applicability.

关 键 词：加速度开关 过载开关 过载 精度分析 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]