CAJ | 학술논문

针对高超声速飞行器准平衡滑翔再入问题，根据再入约束特点，分别把初始段和准平滑段的过程约束转化成为倾侧角约束，并对其交接班问题进行了讨论；在倾侧角约束范围内，设计了倾侧角文件，降低了问题的维数，提高了寻优速度；分别以最大纵程与最小总气动加热为性能指标利用罚函数处理，终端约束，将再入约束问题转化为无约束问题；采用遗传算法寻猜测值、模式搜索法求精确解的方式，提高了寻优精度。仿真结果显示，利用本文设计的倾侧角文件规划出的轨迹，能够很好的满足再入过程中的各项约束，且再入轨迹平稳，可为再入轨迹和覆盖区的研究提供参考借鉴。
침대고초성속비행기준평형활상재입문제，근거재입약속특점，분별파초시단화준평활단적과정약속전화성위경측각약속，병대기교접반문제진행료토론；재경측각약속범위내，설계료경측각문건，강저료문제적유수，제고료심우속도；분별이최대종정여최소총기동가열위성능지표이용벌함수처리，종단약속，장재입약속문제전화위무약속문제；채용유전산법심시측치、모식수색법구정학해적방식，제고료심우정도。방진결과현시，이용본문설계적경측각문건규화출적궤적，능구흔호적만족재입과정중적각항약속，차재입궤적평은，가위재입궤적화복개구적연구제공삼고차감。
In view of the hypersonic vehicle quasi-equilibrium glide reentry problem,the various constraints in the process of reentry are analyzed.Process constraints are converted to a bank angle constraint at differ-ent stages,and a bank angle file is designed based on the above described.With the performance indicators of maximum cross-range and minimum aerodynamic heating,GA combined with pattern search method is used to find the optimal solution for the reentry traj ectory while the terminal constraints are dealt by using the penalty function.The simulation shows that the reentry traj ectory satisfactory to the various con-straints can be planned by using the designed bank angle file.The speed of the algorithm optimization is raised,and still more close to the online program.This method can be used for rapid traj ectory optimiza-tion and research in the covered area.