Flywheel body with shock absorber

Abstract

The invention relates to a flywheel body with a shock absorber. The flywheel body with the shock absorber comprises a rim, spokes, a wheel hub, a flange and particle shock absorbers; every particle shock absorber comprises a shock absorber chamber, particles or powder and a shock absorber end cover; the particle shock absorbers are evenly distributed in the rim of the flywheel body; when the flywheel body is externally driven, system energy is consumed due to inelastic collision and abrasion between the particles and the particles and an empty chamber, and accordingly the purpose of improving the shock vibration resistance capability of the flywheel body is achieved. The flywheel body with the shock absorber has the advantages of being obvious in shock absorbing effect, low in cost, simple in structure, wide in suitable temperature range, stable in performance, long in service life, high in reliability and small in influence to integral utilization due to the fact that the unbalance capacity of the flywheel body does not change fundamentally after environment tests.

Description

technical field [0001] The invention relates to a flywheel body with a shock absorber, which belongs to the field of space actuators. Background technique [0002] Commonly used inertial actuators in spacecraft attitude control systems include flywheels and control moment gyroscopes. Angular momentum is one of the core technical indicators of flywheels and control moment gyroscopes, and the flywheel body is the main element that provides the moment of inertia required for angular momentum. The basic principle of the design of the flywheel body is to obtain the largest possible inertia / mass ratio, and most of them adopt the web type-the disc supports the rim or the spoke type-the spokes support the rim. Traditionally, the flywheel body is a rigid whole without any damping device. Under the same conditions, compared with the spoke structure, the web structure has a stronger ability to resist shock and vibration, but the overall weight is too large; The overall weight of the ...

AI Technical Summary

Problems solved by technology

[0004] 1. Multiple friction plates, damping rings, support bushings, bolts and other parts are installed on the five spokes. The installation of the damping device is complicated and the damping effect is poor. It needs to pass the sine frequency sweep test many times to measure the vibration acceleration value To adjust the gap between the friction plate and the damping ring to obtain the required damping effect, the time and economic cost are high;

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