Magnetically suspended gyroscope flywheel

A magnetic levitation gyro and flywheel technology, which is applied in the direction of aerospace vehicle guides, etc., can solve the problem that the magnetic levitation flywheel can only be used as an attitude actuator but not an attitude sensitive mechanism, and achieve good performance.
CN101708778AInactive Publication Date: 2010-05-19BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2010-05-19
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a magnetically suspended gyroscope flywheel which can be used as a three-free degree attitude control actuator and a two-free degree attitude sensor of a spacecraft like a satellite and the like, and the magnetically suspended gyroscope flywheel mainly comprises a flywheel rotor, an axial magnetic bearing, a radial magnetic bearing, a protection bearing, a displacement sensor, a seal cover, a mounting shaft, a base, a motor, and other parts. The magnetic bearing is adopted for carrying out five-free degree suspension on the flywheel rotor, the flywheel rotor is driven to rotate around a rotating shaft by the motor, and the axial free degree control torque is outputted; the flywheel rotor is controlled to realize the torsion around an X axis or a Y axis of a housing by the axial magnetic bearing, and the radial two-free degree control torque is outputted; and the two-free degree attitude angular velocity of the spacecraft relative to inertia space can be sensed. The magnetically suspended gyroscope flywheel integrates the three-free degree attitude control actuator and the two-free degree attitude sensor of the spacecraft into a whole, thereby reducing the volume of an attitude control system of the spacecraft, reducing the weight of the attitude control system and being particularly applicable to being applied as the attitude control system of the spacecraft like the satellite and the like.
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Description

technical field

[0001] The invention relates to a magnetic levitation gyro flywheel, which is used in the attitude control system of spacecraft such as satellites, and simultaneously performs three-degree-of-freedom attitude control and is sensitive to the two-degree-of-freedom angular rate of the spacecraft. Background technique

[0002] The attitude control system is an important subsystem of spacecraft such as satellites, and its attitude control performance directly affects the performance of the spacecraft. The demand for low power consumption, high reliability, and functional integration is becoming stronger and stronger. The attitude control system consists of two parts: an attitude sensitive mechanism and an attitude control actuator. For example, a three-axis stabilized satellite requires a three-degree-of-freedom angular rate-sensitive mechanism and a three-degree-of-freedom momentum exchange mechanism. The flywheel is the most important actuator for inertial atti...

Claims

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