降低受信仪行程开关返程误差方法的分析

Analysis Research on Method of Reducing Return Error of Angle Instrument’s Limit Switch

摘要:

由于受信仪的行程开关返程误差较大,导致了运行、射界范围的控制精度不高。 针对返程误差偏大实际问题,研究了受信仪的行程开关工作原理,建立了其工作过程数学模型,采用复合形法开展了参数优化设计。 依据 PDCA 程序,应用因果图分析方法获得影响误差的主要因素,并逐一采取相应的解决措施。 经过验证,其实现了凸轮行程开关的返程误差减小到 0. 5°以下,提高了发射装置运行、射界范围的控制精度,达到了预期的目标。

关键词:火箭发射装置;受信仪;返程误差;复合形法;因果图

Abstract:

Because the return error of angle instrument’s limit switch is large, control accuracy of function and fire area is not high. According to the practical problem, working principle of angle instrument’s limit switch is studied, mathematical model of working process is established,and parameter optimization design is carried out by complex method. Major factors affecting error are obtained by causality diagram based on PDCA, and measures are taken to solve them one by one. After verification, it is real- ized that the return error of cam limit switch is reduced to under 0. 5°, control accuracy of function and fire area is improved, and the expected goal is reached.

Key words:rocket launcher; angle instrument;return error; complex method; causality diagram