脉冲横流对末修弹道的影响分析研究

摘要针对脉冲横流对末段修正弹的弹道特性影响的问题，基于外弹道理论, 结合脉冲横流的工作特点,建立了俯仰平面内弹道修正弹末段脉冲横流控制的弹道模型，结合弹道模型，进行了脉冲横流作用以及考虑脉冲横流产生的气动干扰下的弹道特性分析，通过比较得出，在质心处附近时考虑脉冲横流产生的气动干扰下的修正能力增加，弹丸飞行的稳定性下降。以某末段修正弹为例，通过仿真计算，还得到了修正力的大小、修正的开始时刻和偏移质心距离、脉冲横流的个数、以及脉冲作用时间等脉冲横流参数对弹道特性的影响规律 ,通过射程修正图表和攻角的变化曲线表明了该模型的可行性，研究结果对脉冲横流在末段修正弹上的工程应用具有一定的参考意义。7800
关键词脉冲横流气动干扰脉冲横流参数末段修正弹道弹道特性
毕业设计说明书（论文）外文摘要
Title   Analysis on the Effect of Pulse Cross-flow Terminal   Correct Trajectory Abstract
In view of the problem of terminal correct trajectory ballistic characteristics was effected by pulse, based on theory of exterior ballistic and work characteristic of pulse cross-flow, a pulse cross-flow control trajectory model on the pitch plane was established. With the model，the ballistic characteristics analysis was applied in the condition of the projectile forced by pulse cross-flow and with the effect of aerodynamic interference by pulse cross-flow. The conclusion was followed: the projectile with the effect of aerodynamic interference by pulse cross-flow, the trajectory correction capability was increased and dynamic stability was affected. The feasibility of the model was showed by the table and curves of range correction and curves of attack angle .This research is useful for the engineering application of pulse cross-flow in terminal trajectory correction mortar.
Keywords Pulse cross-flow Aerodynamic interference
          Pulse cross-flow parameters Terminal correct trajectory
          Ballistic characteristics

目    次

摘要   I
ABSTRACT   II
目次   III
1   绪论   1
1.1 引言   1
1.2 弹道修正技术概述   1
1.2.1 弹道修正技术的基本原理   1
1.2.2 常用的弹道修正执行机构   1
1.3 国内外弹道修正研究现状   3
1.3.1 国外发展现状   3
1.3.2 国内发展现状   3
1.3.3 末段修正弹的研究意义   4
1.4 本文所做的工作   5
2 基于脉冲控制的修正弹道模型   6
2.1 无控的质心弹道模型   6
2.2 脉冲控制的修正弹道模型   7
2.2.1 修正原理   7
2.2.2 常用的坐标系   7
2.2.3 修正弹道模型的建立   8
3 脉冲横流作用对末修弹道特性的影响   12 脉冲横流对末修弹道的影响分析研究:http://www.751com.cn/wuli/lunwen_6032.html