对接仿真试验台姿态模拟装置优化设计与试验研究

OPTIMIZATION DESIGN AND TEST RESEARCH FOR ATTITUDE SIMULATING DEVICE OF A DOCKING SIMULATING TEST BED

针对地面对接仿真试验台对姿态模拟装置的要求,分析了气浮、液体静压和机械转台结构形式的姿态模拟装置,提出了一种抗弯件式姿态模拟装置,它能满足质量轻、刚度、强度大和摩擦力矩小的要求。利用ANSYS对姿态模拟装置进行了优化设计,优化后其质量降低了23％。由于轴承使用环境的特殊性,对姿态模拟装置的摩擦力矩进行了测试,主动仿真试验台姿态模拟装置最大摩擦力矩5．6 N·m,被动仿真试验台姿态模拟装置最大摩擦力矩1．32 N·m。结果表明抗弯件式姿态模拟装置是一种比较合理的结构,保证了地面对接仿真的真实性。

Based on the requests of the ground docking simulation test facility, air bearing, fluid bearing and turn table attitude simulating device are analyzed, a bending resistant attitude simulating device is presented from above analysis, it is light,large stiffness and intensity, little friction torque. The bending resistant attitude simulating device are optimized with ANSYS, the whole mass are reduced 23%. Because of special use conditions of the bearing, the friction torque of the attitude simulating device are test, data shows that the friction torque of the passive docking simulation test facility is 5.6 N·m, the active＇s is 1.32 N·m. It is shown that the bending resistant attitude simulating device is one convenient device which makes the docking on the ground equal to that in space.