Test device of satellite-borne flywheel disturbance vibration force test in vacuum environment

Abstract

The present invention discloses a test device of satellite-borne flywheel disturbance vibration force test in a vacuum environment. The device comprises a plurality of air vibration isolators, a marble mass block, a support device, force sensors, a production installation table board, a vacuum tank and the like. The air vibration isolators are configured to support the marble mass block, the top portion of the marble mass block is configured to support the vacuum tan and is provided with the vacuum tan, the internal portion of the vacuum tan has a certain vacuum degree, the force sensors are arranged at the bottom portion of the internal portion of the vacuum tank, the force sensors are configured to test micro disturbance generated by a satellite-borne flywheel disturbance source above the installation table board, the disturbance vibration generated when the satellite-borne flywheel disturbance source works is transmitted to the force sensors through an installation board and then istransmitted to a signal processor connected with the force sensors, and a data collector performs signal collection. The device provided by the invention performs test of the flywheel output disturbance vibration force, a test result is more accurate and is close to the actual work state of the flywheel, and the data more has the guiding.

Description

technical field [0001] The invention belongs to the technical field of micro-vibration tests of spacecraft disturbance sources, and in particular relates to a test device capable of testing the disturbance force of a spaceborne flywheel in a vacuum environment. Background technique [0002] Micro-vibration is caused by the normal operation of the on-board equipment (such as high-speed rotating parts such as momentum wheels, stepping parts such as solar wing drive mechanism, oscillating parts such as infrared camera pendulum mirror) or the small excitation of the space environment (such as Thermally induced micro-vibration generated by the spacecraft entering and leaving the earth's shadow) The overall and or local reciprocating motion of the spacecraft with a small amplitude. The presence of in-orbit micro-vibration environment will cause the relative movement of the pointing and target of the spaceborne equipment, which is an important factor affecting the key performance o...

AI Technical Summary

Problems solved by technology

[0004] The level of micro-vibration disturbance output by the flywheel is generally small, and the influence of external factors such as ambient noise and ground vibration during the test will cause inaccurate test results

Moreover, the spaceborne flywheels all work in a vacuum environment, which also leads to a gap between the results of th

Images