Control moment gyroscope

摘要

A control moment gyroscope (CMG) (60) comprises an inner gimbal assembly (IGA) (64) including an IGA housing (72), a rotor (76) rotatably coupled to the IGA housing, and a spin motor (86) coupled to the IGA housing and configured to rotate the rotor about a spin axis (88). The CMG further comprises a stator assembly (62), which includes: (i) a stator assembly housing (96) rotatably coupled to the IGA housing, and (ii) a torque module assembly (98) coupled to the stator assembly housing and configured to rotate the IGA about a gimbal axis (102). A gimbal bearing (68) is disposed between the IGA housing and the stator assembly housing. The gimbal bearing resides between the spin axis and the torque module assembly such that the distance between the gimbal bearing and the spin axis is less than the distance between the gimbal bearing and the torque module assembly.