基于ABAQUS的空间机械臂锁紧点位置确定及受力分析

o obtain the optimal locking position and locking point number, the finite element model was established in ABAQUS. In this paper we obtain some key lock points based on mode analysis first, and then put the high first mode frequency of the arm and low response of the camera as the aim. Through analyzing the effects of three factors: the locking location, locking mechanism stiffness and locking point number, at last , the most appropriate locking scheme is concluded. Based on the acceleration during launch, the reaction force in the locking position can be calculated, which can be used as the input for the design of the locking mechanism.