Design Method of Passive Vibration Isolation System for Satellite Flywheel

Abstract

The invention provides a method for designing a passive vibration isolation system for a flywheel of a satellite. The method includes analyzing configuration and composition of the flywheel, creating and correcting a multi-body kinetic model of the flywheel on the basis of a multi-body kinetic theory and a finite element theory; providing a design of a passive vibration isolation scheme for the flywheel according to ground test data and a simulation analysis result for vibration characteristics of the corrected model of the flywheel; performing simulation analysis on the performance of the scheme according to a combination of the design of the scheme and the kinetic model of the flywheel, verifying the scheme by means of ground tests if index requirements are met, or redesigning the scheme if the index requirements are not met; performing ground passive vibration isolation tests on the flywheel in order to further verify the feasibility of the scheme, completing a design procedure if requirements are met, or redesigning the passive vibration isolation scheme if the requirements are not met. The passive vibration isolation scheme includes a vibration isolator rigidity design, a damping design and a layout design. The method has the advantages that micro-vibration interference of the flywheel on a satellite platform can be effectively reduced, and technical support can be provided for development of high-precision, high-resolution and high-stability hyper-static platforms.

Description

technical field [0001] The invention relates to the field of satellite flywheel passive vibration isolation design, in particular to a satellite flywheel passive vibration isolation system design method. Background technique [0002] With the development of aerospace technology, the accuracy of satellite payloads is getting higher and higher. At the same time, strict requirements are placed on the micro-vibration environment of satellite platforms. In order to meet the requirements of satellite attitude adjustment, satellites are equipped with rotating parts such as flywheels or moment gyroscopes, which inevitably introduce vibration interference sources. According to research, it is found that flywheels have the greatest impact on the vibration of satellite platforms. Passive vibration isolation design for flywheels is the solution to this problem. an effective approach to the problem. The design of the passive vibration isolation system includes the stiffness design, damp...

AI Technical Summary

Problems solved by technology

However, the simulation analysis of the vibration characteristics of the flywheel has the characteristics of difficulty in modeling the model accurately and describing the characteristics of the rotating parts accurately, which makes it difficult to unify the simulation results with the test, and thus it is difficult to guide, support and demonstrate the design and verification of the passive vibration isolation system

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