摘要行进间射击不同于静止射击,不但要考虑载体的运动,还要考虑路面谱对载体姿态的影响,并由此影响射击延迟时间和首发命中率。此课题比较符合现在的实际情况,深入研究对武器系统的精度有着重大的意义。9020
本论文主要研究内容如下:
(1) 行进间射击的随机响应研究
以车辆行驶动力学和火炮发射动力学理论为依据,利用随机振动理论, 提出了在随机激励下非平稳随机响应的计算方法,并以某自行火炮为研究对象, 用该方法探讨了该系统在随机路面上作行进间射击时的动力特性和动态响应,对该类系统的结构设计和实际应用均有参考价值。
(2) 射击门体制下的射击延时分析
针对具有射击门体制的武器系统,研究其因加入射击门而产生的射击延时。
应用随机穿越理论对射击门和射击延迟时间进行计算。
(3) 首发命中率分析
以具有吸取区域的概率转移阵,超速概率转移阵,欠速概率转移阵的表达式为基础,结合等概率分割网格化算法,给出了具有目的域的首发命中率的相关计算公式,同时分析了首发命中率随射击时间的变化而受到的影响以及相关系数对首发命中率的影响。
关键词:随机响应,路面谱,射击延时,首发命中率
毕业设计说明书(论文)外文摘要
Title the analysis of the effectiveness and
efficiency of the shooting-in-moving
Abstract
Shooting-in-moving is different from stationary shooting. Not only the movement of the carrier, but also the influence of road spectrum on the carrier attitude should be considered, which affects shooting delay time and first hit probability.
The main contents of the thesis are as follows:
(1)Research on random response of shooting-in-moving.
This paper presents a solved computation method for non-stationary random response subjected to excitation based on the theory of vehicle dynamics, launch dynamics and random vibration. By this method, The dynamic characteristics and dynamic response of the shooting-in-moving system on random road is also discussed in this article, which will be reference for the design of the system and practical applications.
(2)Calculation of shooting delay time.
The shooting delay time as result of the equipped shooting gate is studied for the weapon system with shooting gate. We calculate the shooting delay time on the basis of random cutthrough theory.
(3)Analysis of first hit probability.
The rate of transition probability matrices is defined by the concept of the transition probability matrix with absorption. The dissertation derivatives the first hit probability calculation formula and discusses the correlation coefficients on the influence of the first hit probability.
Keywords: random response, road spectrum, shooting delay time, first hit probability
目次
1 引言 1
1.1 课题研究的背景与意义 1
1.2 相关理论与技术在国内外的发展现状 2
1.3 本文的主要内容 3
2 行进间射击的随机响应研究 4
2.1 随机路面谱的生成 4
2.2 系统响应模型 6
2.2.1 动力学模型 6
2.2.2 在路面谱下的随机响应 7
2.2.3 结果分析 8
2.3 本章小结 9
3 射击门体制下的射击延时分析 9
3.1 射击门 10
3.2 射击延迟时间 10
3.2.1 跨越射击门频率 11
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