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研究了航天器相对运动地面动力学实验的构建问题及实验结果的可信性问题。首先利用相似性理论给出了航天器相对运动地面动力学实验的建立方法,而后针对地面实验环境与空间真实环境之间的力学环境差异提出补偿办法,之后针对航天器相对运动地面动力学实验中的干扰因素进行分析并给出相应的补偿策略,然后利用动力学等效性建立航天器相对运动地面动力学实验控制策略,该控制策略中包括力学差异补偿以及实验环境干扰补偿,数值仿真结果与地面实验结果均证明该控制策略能够满足地面实验要求,最后以相似性理论为依托建立相似性度量函数,并利用这一函数证明了航天器相对运动地面实验结果的可信性。仿真结果表明,给出的航天器相对运动地面动力学实验方案可行,其实验结果可信,对地面实验的开展具有重要的参考价值。
The construction problem of ground dynamics experiment of spacecraft relative motion and the credible problem of experimental results are studied. First of all, the method of establishing the ground dynamics experiment of the spacecraft relative motion is given by the similarity theory. Then, the compensation method is put forward for the difference of the mechanical environment between the ground experimental environment and the real space environment. Then, for the spacecraft relative motion ground dynamics experiment Then the corresponding compensation strategy is given, and then the kinetic equivalence is used to establish the experiment control strategy of the ground dynamics of the relative movement of the spacecraft. The control strategy includes the compensation of mechanical differences and the compensation of experimental environmental disturbances. The numerical simulation results The ground test results show that the control strategy can meet the requirements of the ground test. Finally, the similarity measure function is established based on the similarity theory, and the credibility of the spacecraft relative motion ground test results is proved by this function. The simulation results show that the experimental program of surface dynamics of spacecraft relative motion is feasible and the experimental results are credible, which has important reference value for the ground experiments.