Spin dynamics of space stations under transient and steady-state excitations and stabilizing responses

Abstract

An analytical study of the dynamics of manned rotating space stations under various steady-state and transient excitation, such as docking impacts, attitude system torques, and crew motions, has been conducted. The basic equations of motion for the spinning station are developed and expressions simulating the applied disturbances are introduced. Two stability systems, a gyroscopic wobble damper and a proportional jet damper are represented mathematically, and the motion of the station under the external disturbances has been determined with and without the effects of these stability systems. Computer results for a toroidal example station are presented, and the effects of a variation in the moment of inertia distribution are discussed.

A description of an experimental facility capable of simulating the excitation considered in the theoretical analysis and of determining and recording the resultant station lotion is also included.