多约束条件下的最优两脉冲空间拦截(英文)
发布时间:2021-11-24 09:34
本文研究多约束条件下的最优两脉冲空间拦截问题。对空间拦截器的末端位置、脉冲和拦截时刻以及速度脉冲的分量大小施加多约束。通过变分法将这些优化问题归结为多点边值问题。为使用拉格朗日乘子法,采用松弛变量法将所有不等式约束转化为等式约束。为此提出一种新的动态松弛变量法,并建立一种间接优化方法。随后,用所提方法解决自由飞行弹道导弹的两脉冲空间拦截问题。在高精度数值解基础上,得到一些局部最优解的结论。具体来说,通过数值算例,证明了当存在时间和速度脉冲约束时,多约束拦截问题可能出现最优两脉冲解;如果两个脉冲时刻是自由的,那么具有速度脉冲约束的两脉冲空间拦截问题可能退化为单脉冲情形。
【文章来源】:Frontiers of Information Technology & Electronic Engineering. 2020,21(07)EISCICSCD
【文章页数】:24 页
【文章目录】:
1 Introduction
2 Problem statement
3 Necessary conditions for equality constraints
4 Necessary conditions for inequality constraints
4.1 Inequality constraints on time instants and velocity impulses
4.2 Inequality constraints on the position vec-tor of the interceptor
5 One-impulse space interception problem
6 Occurrence of two velocity impulses
7 A terminal position constraint
8 Numerical verification for multiple constraints
9 Conclusions
Compliance with ethics guidelines
Appendix A:Derivation of the BCs for Problem 1
Appendix B:Boundary conditions,parameters,and initial values for Examples 2 and 3
Appendix C:Initial data
Appendix D:Time change
【参考文献】:
期刊论文
[1]Hohmann transfer via constrained optimization[J]. Li XIE,Yi-qun ZHANG,Jun-yan XU. Frontiers of Information Technology & Electronic Engineering. 2018(11)
本文编号:3515708
【文章来源】:Frontiers of Information Technology & Electronic Engineering. 2020,21(07)EISCICSCD
【文章页数】:24 页
【文章目录】:
1 Introduction
2 Problem statement
3 Necessary conditions for equality constraints
4 Necessary conditions for inequality constraints
4.1 Inequality constraints on time instants and velocity impulses
4.2 Inequality constraints on the position vec-tor of the interceptor
5 One-impulse space interception problem
6 Occurrence of two velocity impulses
7 A terminal position constraint
8 Numerical verification for multiple constraints
9 Conclusions
Compliance with ethics guidelines
Appendix A:Derivation of the BCs for Problem 1
Appendix B:Boundary conditions,parameters,and initial values for Examples 2 and 3
Appendix C:Initial data
Appendix D:Time change
【参考文献】:
期刊论文
[1]Hohmann transfer via constrained optimization[J]. Li XIE,Yi-qun ZHANG,Jun-yan XU. Frontiers of Information Technology & Electronic Engineering. 2018(11)
本文编号:3515708
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