摘要
针对在2015年1月1日之后的10年期间,距地球三维轨迹1 000万km内的1 067颗行星进行探测,深空探测飞行器从地球出发,采用小推力控制,为了在10年时间内飞过的行星最多,给出了一种深空探测4-D飞行轨迹的全局优化算法,即采用静态参数+动态参数的优化算法。经过长时间大规模的飞行数值仿真,飞行仿真出航天器的4-D最优飞行轨迹,在10年内路过了1 067颗行星中的20颗行星。
A global optimization algorithm was presented for optimizing the 4-D trajectory to solve the following problem:maximize the performance index for the space vehicle, and the performance index of optimal trajectory is to maximize the number of the asteroids which the spacecraft met and also maximize the final mass. The optimization algorithm is comprised of static parameters and dynamic control laws. The space vehicle flies starting from the Earth at the time January 1 ,t 2015 and then flies around the Sun for 10 years. Based on a great deal of numerical flight simulation by using this global dynamic optimization algorithm, the 4-D optimal trajectory was obtained for the spacecraft fly by 20 asteroids around the Sun within 10 years.
出处
《系统仿真技术》
2013年第4期344-349,共6页
System Simulation Technology
关键词
深空飞行器
组合优化算法
轨迹优化
飞行数值仿真
space vehicle
combined optimization algorithm
trajectory optimization
flightnumerical simulation
作者简介
安斌男(1992-),研究生,主要研究方向为控制工程,航天器导航指导与控制技术。
南英男(1964-),教授,博士(后),博士生导师,主要研究方向为飞行力学与控制、飞行器设计与飞行仿真。