摘要
使用高斯伪谱法,研究了天基再入飞行器最远横向滑翔轨迹优化问题,针对轴对称飞行器动力学模型,提出了气动力建模方法。通过高斯伪谱法建立非线性优化问题并给出解析雅可比矩阵求解方法,在多种路径约束条件下,以横向滑翔距离为性能指标进行轨迹优化仿真。仿真结果表明此方法可以有效地解决天基再入飞行器最远横向滑翔轨迹优化问题。
By using the Gaussian pseudo spectral method,the optimization of the farthest lateral glide trajectory of space-based reentry vehicles is studied,and aerodynamic modeling methods are proposed for axisymmetric aircraft dynamics models.A Gaussian pseudo spectral method is used to establish a nonlinear optimization problem,and an analytical Jacobian matrix solution method is given.Under various path constraints,the trajectory optimization simulation is performed using the lateral glide distance as the performance index.Simulation results show that this method can effectively solve the optimization of the farthest lateral glide trajectory of space-based reentry vehicles.
作者
周亮
王昊宇
尚海滨
曹莉
兰国峰
ZHOU Liang;WANG Haoyu;SHANG Haibin;CAO Li;LAN Guofeng(Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China;Beijing R&D Center,Shanghai Academy of Spaceflight Technology,Beijing 100081,China;School ofAerospace Engineering,Beijing Institute of Technology,Beijing 100081,China)
出处
《空天防御》
2020年第3期89-95,共7页
Air & Space Defense
关键词
再入
高斯伪谱法
模型
轨迹优化
性能
reentry
Gaussian pseudo spectral method
model
trajectory optimization
performance
