基于减旋的弹道横偏修正方法反求分析  

Deflection Error Correction Method for Spin-stabilized Projectiles Based on Despining Approach

作　　者：霍鹏飞[1] 杨小会[1] 刘创[1] 

机构地区：[1]机电工程与控制国家级重点实验室,陕西西安710065

出　　处：《探测与控制学报》2008年第6期12-16,20,共6页Journal of Detection & Control

基　　金：国防预研项目资助(513050304)

摘　　要：美国专利和年会报告均提到一种低成本的二维弹道修正原理,通过减旋造成偏流减小而降低横向散布。对这种原理的稳定性、修正能力、减旋控制方法等关键问题进行了深入研究,并对横偏减旋修正能力进行了仿真验证。研究表明,减旋改变动力平衡角减小弹丸偏流是对横偏修正的根本原因,在保持飞行稳定性的前提下,在动力平衡角变大之前使转速快速下降能够获得较大的横偏修正能力,能够满足横偏修正指标要求。In a US patent and NDIA 49th fuze proceedings, a low cost 2D course correction fuze for spin-stabilited projectiles was mentioned, in which the cross deflection is reduced through projectile roll rate reduced. In this paper,the key issues of stability, correction ability and despinning approach are researched, and the simulation verification to cross deflection correction ability is implemented. It is shows that the deflection correction can be achieved by reducing scross drift of projectile which is accomplished by altering the yaw of response through the roll rate reduced,and in the condition of maintaining flight stability, larger correction values can be obtained by reducing the roll rate rapidly before the yaw of response reaches its peak value, satisfying the performance requirement of cross deflection correction.

关 键 词：弹道修正引信 旋转稳定弹 偏流 横向偏差修正 

分 类 号：TJ430.35[兵器科学与技术—火炮、自动武器与弹药工程]