Trajectory Optimization for Space Exploration Based on Combined Optimization Algorithm
An Bi · System Simulation Technology · 2013
A global optimization algorithm was presented for optimizing the 4-D trajectory to solve the follow ing problem: maximize the performance index for the space vehicle,and the performance index of optimal trajectory is to maximize the number of the asteroids w hich the spacecraft met and also maximize the final mass. The optimization algorithm is comprised of static parameters and dynamic control law s. The space vehicle flies starting from the Earth at the time January 1st2015 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 w as obtained for the spacecraft fly by 20 asteroids around the Sun w ithin 10 years.