变体跨介质航行器俯冲弹道设计与优化  

Design and optimization of dive trajectory for morphing trans-media vehicle

作　　者：陆云龙 胡俊华[1] 刘安 冯金富[1] 陈国明 LU Yunlong;HU Junhua;LIU An;FENG Jinfu;CHEN Guoming(Air Force Engineering University,Xi’an 710038,China)

机构地区：[1]空军工程大学,陕西西安710038

出　　处：《飞行力学》2021年第6期56-61,共6页Flight Dynamics

基　　金：国家自然科学基金资助(51779263)。

摘　　要：针对变体跨介质航行器入水跨越时机问题,提出了基于航行器俯冲过程的弹道优化设计方案。首先,以俯冲时间最短为优化目标,建立了考虑后掠角变化的三自由度弹道优化模型;然后,考虑动力学、边界条件、路径和控制量等约束,利用hp自适应伪谱法将最优控制问题转化为非线性规划问题,求解得到了弹翼后掠角可变和固定情况下的俯冲弹道最优设计方案。仿真结果表明,在满足复杂约束条件下,与后掠角固定构型相比,变掠翼构型能够以更短的时间完成俯冲过程。For the problem of crossing time of the morphing trans-media vehicle,the dive trajectory design and optimization was proposed.Firstly,taking the shortest time of drive trajectory as the optimization goal,the three DOF trajectory optimization model was established considering the angle changes of the sweep wings.Then,considering the dynamics,edge conditions,flight path and controlling quantity,the optimal control problem was transformed into a nonlinear programming problem with hp adaptive pseudo-spectral method,and the optimal dive trajectory with variable-swept wings and fixed wings was solved.Simulation results show that the variable-swept wings can complete the dive process in a shorter time than the fixed wings under the complex constraints.

关 键 词：跨介质航行器 变掠翼 弹道优化 hp自适应伪谱法 

分 类 号：TJ761.1[兵器科学与技术—武器系统与运用工程]