毕业论文移动版

摘要以某制导火箭弹为研究对象，开展了制导火箭弹的弹道制导律和速度控制方法研究。根据制导火箭弹总体设计要求和工作特点，针对终端的落角和速度约束问题展开以下研究工作：

首先，本文根据制导火箭弹的运动特性，建立了制导火箭弹的数学模型，进行了受力分析，编写了仿真程序，并结合弹道方案分析了制导火箭弹的速度特性和弹道特性。

其次，针对弹道终端落角约束问题，建立了弹目相对运动的数学模型，推导了弹目视线的计算模型，设计了具有落角约束能力的制导律，并对制导律参数的选取进行了研究。仿真结果表明，设计的制导律能够满足落角约束条件。64259

然后，针对速度约束问题，就锥形运动参数对弹道的影响规律进行了研究，对多种情况进行了仿真分析和比较，设计了减速控制方案，并进行了仿真对比。仿真结果表明，该减速方案有效。

最后，对满足终端约束条件的理想速度曲线进行了设计，为减速控制提供基准。综合带有落角约束能力的制导律和减速控制方案，对末段制导控制方案进行了仿真，仿真结果表明，所设计的制导律能够同时满足终端落角和速度的约束条件。

毕业论文关键词  制导火箭弹  锥形运动  制导律  落角  减速  

毕业设计说明书（论文）外文摘要

Title    Research on Guided Rocket Velocity Control Based  on Conical Motion                             

Abstract The guided rocket is the research object in this article, according to the design requirements and working characteristics, aiming at the end of the angle and velocity constraint problem, the main work of the paper could be described as follows: 

First of all, according to the movement characteristics of guided rocket, established a mathematical model of the guided rocket and carried on the stress analysis, completed the simulation program, analyzed the velocity characteristic and the ballistic characteristics of the guided rocket combined with the ballistic scheme.

Secondly, according to terminal angle constraint, completed the mathematical model of relative movement, deduced the calculation model of the line of sight, designed the guidance law. The simulation results show that the designed guidance law can satisfy the Angle constraints.

Then, according to velocity constraint, discussed the influence law of conical motion parameters to ballistic, simulation analyses for a variety of conditions, designed a deceleration control scheme. The simulation results show that the control scheme is effective.

Finally, designed the ideal velocity curve, provided a reference for the control. In consideration of the guidance law and the control scheme, completed the simulation of terminal guidance control scheme, the simulation results show that the designed guidance law can content the constraint conditions.

Keywords  Guided Rockets  Conical Motion  Guidance Law   Falling Angle  Deceleration

1  绪论 1

1.1  研究背景 1

1.2  国内外研究进展情况 1

1.3  主要研究工作 3

2  制导火箭弹数学模型 5

2.1  坐标系定义及坐标系转换 5

2.2  作用在制导火箭弹上的力 9

2.3  制导火箭弹数学模型 11

2.4  空中标准气象条件 (责任编辑：qin)