基于等效力方法的双旋弹侧向控制力落点响应分析

doi:10.3969/j.issn.1000-1093.2016.08.006

兵工学报 ›› 2016, Vol. 37 ›› Issue (8): 1379-1387.doi: 10.3969/j.issn.1000-1093.2016.08.006

基于等效力方法的双旋弹侧向控制力落点响应分析

王钰，王晓鸣，程杰，于纪言

（南京理工大学智能弹药技术国防重点学科实验室，江苏南京 210094）

收稿日期:2015-12-03 修回日期:2015-12-03 上线日期:2016-09-30
通讯作者: 王钰 E-mail:15250996016@163.com
作者简介:王钰(1989—)，女，博士研究生
基金资助:
国家自然科学基金项目（11402121）

Analysis on Impact Point Response of a Dual-spin Projectile with Lateral Force Based on Equivalent Force Method

WANG Yu, WANG Xiao-ming, CHENG Jie, YU Ji-yan

(Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)

Received:2015-12-03 Revised:2015-12-03 Online:2016-09-30
Contact: WANG Yu E-mail:15250996016@163.com

摘要/Abstract

摘要： 为研究双旋式弹道修正弹在侧向控制力作用下弹丸的落点响应规律，实现控制力作用下落点修正量的简便计算，提出等效控制力方法。将侧向控制力对弹丸质心运动的影响分解为力的直接作用和力与力矩引起的角运动变化产生的间接影响。基于双旋弹的7自由度弹道模型，推导出受控条件下弹丸平均攻角的变化量，从而求解等效控制力，并依此推导出控制力引起的落点位置变化量的理论表达式。理论分析表明，其余参数相同时，修正距离与控制力作用点到质心的距离几乎呈正比。仿真和实验数据表明，理论公式计算的误差在10%以内。

关键词: 兵器科学与技术, 双旋弹, 侧向控制力, 落点修正量, 提前相位角

Abstract: An equivalent force method is proposed to analyze the impact point response of a dual-spin projectile with lateral control force and calculate the correction of impact point conveniently. The influence of lateral force on the mass-center motion of projectile is separated into two parts: the direct influence arose from the control force and the indirect influence caused by the variation of angular motion related to the control force and moment. Based on the seven-degrees-of-freedom rigid-body flight-dynamic-model, the change of angle-of-attack caused by the lateral control force can be derived, thus calculating the equivalent force and the variation of impact point. According to the theoretical analysis, the correction distance is almost in proportion to the length between the origin of control force and the mass center under the same condition. Simulations and experiments demonstrate that the errors of correction and phase angle calculated by the proposed method are less than 10%.

Key words: ordnance science and technology, dual-spin projectile, lateral force, correction quantity of impact point, lead phase angle

中图分类号:

TJ012.3⁺4

王钰，王晓鸣，程杰，于纪言. 基于等效力方法的双旋弹侧向控制力落点响应分析[J]. 兵工学报, 2016, 37(8): 1379-1387.

WANG Yu, WANG Xiao-ming, CHENG Jie, YU Ji-yan. Analysis on Impact Point Response of a Dual-spin Projectile with Lateral Force Based on Equivalent Force Method[J]. Acta Armamentarii, 2016, 37(8): 1379-1387.

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基于等效力方法的双旋弹侧向控制力落点响应分析

Analysis on Impact Point Response of a Dual-spin Projectile with Lateral Force Based on Equivalent Force Method

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