摘要
针对高升阻比高超飞行器再入可达域计算问题,提出了基于差分进化算法和倾侧角插值相结合的混合求解方案。通过设计罚函数和适应度函数极值化将再入过程等式约束和不等式约束添加到优化指标。为了减小参数化倾侧角剖面的搜索空间,利用带约束的差分进化算法求解满足再入过程约束和终端约束的再入轨迹。在分别得到最大横向航程和最大纵向航程的倾侧角剖面后,利用插值法快速生成倾侧角指令集,进而实现再入可达域的快速计算。以高升阻比飞行器CAV-H为对象,设计仿真算例,结果表明,该混合优化求解方案易于实现且具有良好的可操作性。
A hybrid optimization method based on differential evolution algorithm and bank angle interpolation was proposed for the reentry landing footprint calculation of high lift-drag ratio hypersonic vehicle.The reentry process equality constraints and inequality constraints were added to the optimization index by designing the penalty function and the fitness function maximization.In order to reduce the search space of the parametric bank angle profile,a constrained differential evolution algorithm was used to solve the reentry trajectory that satisfies the process constraints and terminal constraints.After obtaining bank angle profiles with the maximum cross-range and down-range voyages respectively,the interpolation bank angle method was used to quickly produce the bank angle command set,and then the fast calculation of the reentry landing footprint was realized.The simulation is designed with the high lift-to-drag ratio vehicle CAV-H.The results show that the hybrid optimization solution is easy to implement and has good maneuverability.
作者
蔺君
何英姿
黄盘兴
LIN Jun;HE Yingzi;HUANG Panxing(Beijing Institute of Control Engineering,Beijing 100190,China;Science and Technology on Space Intelligent Control Laboratory,Beiing 100190,China)
出处
《中国空间科学技术》
EI
CSCD
北大核心
2020年第4期54-60,共7页
Chinese Space Science and Technology
基金
国家自然科学基金(61873029)
北京市自然科学基金(4192068,4172070)
关键词
再入可达域
差分进化算法
倾侧角插值
高超声速飞行器
罚函数
reentry landing footprint
differential evolution algorithm
bank angle interpolation
hypersonic vehicle
penalty function
