太阳帆新型逆向周期轨道

太阳帆航天器以其连续推力、不消耗燃料的特点而广受关注。该文提出一种太阳帆新型逆向周期轨道。采用太阳帆理想光压模型,在二体模型下给出了太阳帆逆向日心轨道的动力学特性,分析得出了能够形成平面逆向日心轨道的条件。由于该逆向周期轨道的对称性,该文以轨道的半周期为例,详细说明了逆向周期轨道的特点。该周期轨道位于黄道面内太阳的一侧,1个周期内角动量的符号变化2次。为了求解该轨道控制过程中所需要的姿态角,引入了粒子群差分进化(PSODE)优化算法。最后通过仿真计算,得出了一种简单控制律的逆向周期轨道,该轨道周期为4.26a,在一个周期内姿态角只变化1次。

A solar sail inverse periodic orbit

Deep space exploration solar sail spacecraft have great potential due to their continuous thrust without propellant.This paper describes an inverse periodic orbit.A two-body frame and an ideal sail model are used to analyze the dynamic conditions needed to produce an inverse orbit and constraints for the inverse periodic orbit.Due to the symmetry in the inverse periodic orbit,the orbital characteristics were introduced based on a semi-periodic orbit.The orbit is located by one side of the sun in the ecliptic plane.However,during each period the sign of the orbital angular momentum changed twice.The particle swarm optimization and differential evolution(PSODE) method was used to optimize control of the sail cone angle.Numerical simulations produced an inverse periodic orbit using a simple control law where the cone angle changed only once in 4.26 years.