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Folding beam structure-based multi-degree of freedom passive vibration isolation device for spacecraft flywheel

A technology for a spacecraft and a folding beam, which is applied in the field of multi-degree-of-freedom passive vibration isolation devices for spacecraft flywheels, can solve problems such as output disturbance force, and achieve the effects of small additional impact, easy implementation, and low quality.

Inactive Publication Date: 2016-08-17
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-degree-of-freedom passive vibration isolation device for a spacecraft flywheel based on a folded beam structure. This invention solves the technical problem that the existing spacecraft flywheel will output disturbance force while it is running.

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  • Folding beam structure-based multi-degree of freedom passive vibration isolation device for spacecraft flywheel
  • Folding beam structure-based multi-degree of freedom passive vibration isolation device for spacecraft flywheel
  • Folding beam structure-based multi-degree of freedom passive vibration isolation device for spacecraft flywheel

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Embodiment Construction

[0032] The accompanying drawings constituting a part of this application are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

[0033] see figure 1 The multi-degree-of-freedom passive vibration isolation device for a spacecraft flywheel based on a folded beam structure provided by the present invention is arranged between the spacecraft flywheel 100 and the spacecraft cabin. The flywheel is installed on the vibration isolation device, and the vibration isolation device is connected with the spacecraft cabin, so that the disturbance force generated by the flywheel during high-speed rotation will not be directly transmitted to the spacecraft. Therefore, the interference effect of the disturbance on other devices on the spacecraft during the use of the flywheel is reduced. Improved...

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Abstract

The present invention provides a folding beam structure-based multi-degree of freedom passive vibration isolation device for a spacecraft flywheel. The vibration isolation device is mainly composed of an installation platform, folded beam vibration isolation units, an installation base and the like. The vibration isolation device is installed between the spacecraft flywheel and an spacecraft body structure, and used for reducing the influence, on stability and precision of the spacecraft platform, of additional high-frequency micro-vibration disturbance generated in the working process of the flywheel under the premise of not influencing the attitude control performance of the spacecraft flywheel, and reducing the work environment noise of satellite-borne sensitive loads.

Description

technical field [0001] The invention relates to the technical field of passive vibration isolation of spacecraft structure vibration, in particular to a multi-degree-of-freedom passive vibration isolation device for a spacecraft flywheel based on a folded beam structure. Background technique [0002] The high attitude stability of the spacecraft is one of the keys to ensure high-resolution imaging. As an important actuator of the spacecraft attitude control system, the flywheel of the spacecraft is always in a state of high-speed rotation. Due to factors such as rotor imbalance, bearing defects, and output torque fluctuations of the drive motor, it outputs normal attitude control torque while also outputting The same-frequency and high-order harmonic disturbance force related to its rotational speed is one of the main reasons for the flutter of the satellite platform, which seriously affects the attitude stability accuracy of the spacecraft and reduces the imaging quality of...

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Application Information

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IPC IPC(8): B64G1/38
CPCB64G1/38
Inventor 罗青李东旭魏展基
Owner NAT UNIV OF DEFENSE TECH
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