文档介绍：高超声速飞行器多目标复杂约束滑翔弹道优化收稿日期:2015-10-10
基金项目:国家自然科学基金资助项目(11502289)
作者简介:谢愈(1982-),男,湖南宁乡人,讲师,博士,E-mail:**********@;
潘亮(通讯作者),男,副研究员,博士,E-mail:@
谢愈,潘亮,谷学强,陈璟
(国防科学技术大学机电工程与自动化学院,湖南长沙 410073)
摘要:提出了针对气动热、过载、动压、控制量、航路点、禁飞区以及终端状态等复杂约束条件下的高超声速飞行器多目标滑翔弹道优化方案。首先建立了换极运动模型,简化了部分约束条件的处理,并规避了传统运动模型的奇异问题;在此基础上,引入物理规划方法将多目标优化问题转换为反映设计者不同偏好的单目标优化问题;进一步基于分段Gauss伪谱方法将弹道单目标优化的最优控制问题转换为非线性规划问题进行求解。仿真结果表明,该方法获得的滑翔优化弹道能满足复杂约束要求,同时能够反映设计者不同偏好。
关键词:高超声速飞行器;滑翔弹道优化;复杂约束;多目标优化;换极运动模型;物理规划;分段Gauss伪谱法
中图分类号:V412 文献标志码:A 文章编号:
Gliding Trajectory Optimization with Multiple Objectives plicated Constraints for Hypersonic Vehicles
XIE Yu, PAN Liang, GU Xueqiang, CHEN Jing
(College of Mechatronic Engineering and Automation, National University of Defense Technology, Changsha 410073, China)
Abstract: The paper studies a multi-objective gliding trajectory optimization scheme for hypersonic vehicles plicated constraints such as aerodynamic heating, overload, dynamic pressure, control variables, waypoints, no-fly zones, and terminal states. The pole-transformed motion equations are deduced to simplify some of the constraints and to avoid the singularity of the traditional motion equations; Based on which, the physical programming is employed to convert the multi-objective optimization problem to a single optimization objective problem considering the designer’s preference. Then, the optimiz