立姿无依托连发武器枪—肩系统机械导纳测量与分析

Mechanical Admittance Measurement and Analysis of Gun-Shoulder System of Standing Non-rest Automatic Weapon

影响连发射击武器射击精度的因素很多,在射击过程中,由于火药燃气冲击及运动件间的相互撞击引起枪—肩系统运动状态的变化,导致武器枪口偏移起始量而造成武器连发射击精度变差。为客观地反映武器系统的连发射击精度,研制反映武器系统真实射效的智能有控枪架具有重要的意义。针对立姿无依托连发武器的特点建立主动态下枪—肩系统的抵肩力及枪—肩运动的电测系统,介绍测量系统的组成及枪—肩系统抵肩力的修正方法,利用电测数据求取枪—肩系统的机械导纳函数,采用正交分量法对枪—肩系统的导纳函数进行模态识别,并探讨立姿无依托连发武器系统被动态与主动态的主要差异。

Many factors that influence the firing accuracy of automatic weapon cause a gunpoint to be deviated from initial value with the result that the firing accuracy of weapon falls since the impulsion of powder gas and the impact between moving parts lead to the change of movement state of gun-shoulder system during firing. It is necessary to develop an intelligent controlling gun carriage for weapon system in order to reflect the automatic firing accuracy of it objectively. An electronic measuring system has been built up for the shoulder＇s receiving force and gun-shoulder movement of gun shoulder system in the light of the characteristics of standing non-rest automatic system. The composition of measuring system and the correction method of shoulder＇s receiving force were presented. The mechanical admittance functions of gun-shoulder system were derived from electronically measured data, and an orthogonal component method was used to identify the mode for the admittance functions of gun-shoulder system. The important difference between passive state and initiative state of standing non-rest automatic weapon was inquired.