一种微型空间驱动机构设计及力学仿真验证

提出一种基于超声电机、谐波减速器及角位置传感器的轻量化微型空间驱动机构方案.该驱动机构有高精度、大扭矩/质量比、结构紧凑、双角度测量备份等优点.对轴承、谐波减速器等关键部件建模方的法进行探讨，并通过对整机的模态分析及振动试验仿真验证设计的合理性.该机构的设计可以被应用于轻型机械臂、太阳帆板驱动机构等空间执行机构.

Design and Mechanical Simulation of a Micro Drive Assembly for Space Application

The micro space drive assembly that consists of ultrasonic motor, harmonic gears, angle position sensor is provided. This space drive assembly features: high precision, high torque/weight ratio, compact structure, double angle position sensor. The modeling methods of bearings and harmonic gears are discussed, and then the responsibility of this assembly by modal analysis and mechanical simulation is verified. The assembly can be used in the robotic arm, solar array drive assembly and some other space mechanisms.