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Passive damping device for solar panel

A technology of solar sail panels and vibration damping devices, which is applied in the field of passive vibration damping devices and passive vibration control, can solve problems such as satellite pointing accuracy impact, disasters, etc., and achieve the effects of compact structure, fast damping and attenuation, and simple working principle

Active Publication Date: 2014-11-12
SHANGHAI AEROSPACE CONTROL TECH INST
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AI Technical Summary

Problems solved by technology

This kind of vibration is coupled with the attitude motion of the main body of the spacecraft, which will seriously affect the pointing accuracy of the satellite (such as the Hubble Telescope in the United States), and even bring about a devastating disaster

Method used

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  • Passive damping device for solar panel
  • Passive damping device for solar panel
  • Passive damping device for solar panel

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Embodiment Construction

[0037] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0038] like Figure 1 to Figure 3 As shown, a passive damping device for solar panels is installed between the solar panel drive mechanism and the panel support, including: the middle column 1; the upper flange connected to the top and bottom of the middle column 1 respectively 2. The lower flange 3; the upper flange 2 is connected to the driving machine of the solar panel drive mechanism; the lower flange 3 is connected to the sail panel support; the damper 4 is arranged on the outside of the middle column 1, and is connected with the upper flange 2 and the lower flange 3 connection; there is a gap between the middle column 1 and the damper 4; when the solar panel vibrates, the damper 4 produces shear deformation, stores part of the energy generated by the vibration, and converts the other part of energy into he...

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Abstract

The invention discloses a passive damping device for a solar panel. The passive damping device is arranged between a solar panel driving mechanism and a panel support. The passive damping device comprises a middle column, an upper flange, a lower flange and a damper. The upper flange and the lower flange are connected with the top end and the bottom end of the middle column. The upper flange is connected with the solar panel driving mechanism. The lower flange is connected with the panel support. The damper is arranged on the outer side of the middle column and is connected with the upper flange and the lower flange. High-damping-characteristic viscous-elastic materials are arranged between an inner shearing piece and an outer shearing piece. The passive damping device is high in reliability, long in service life and easy to mount, the passive damping device can be directly connected between the solar panel driving mechanism and the panel support, a panel structure does not need to be changed in a large-scale mode, the extra modal damping ratio is provided for each stage of vibration mode of a solar panel system, flexibility vibration of the solar panel can decline quickly, and the purpose that satellite platform control accuracy is improved is achieved.

Description

technical field [0001] The invention relates to a high-precision and high-stability control technology for satellites with large attachments, in particular to a passive vibration control technology, in particular to a passive vibration damping device for solar sail panels. Background technique [0002] With the development of the aerospace industry, the spacecraft undertakes more and more tasks, and the structure of the spacecraft is developing in the direction of large-scale and complex. In order to reduce the launch cost, its structure is required to be as light as possible, but it is limited by the performance of existing materials and the special space working environment, which will inevitably lead to high flexibility and low damping characteristics of the space structure when it works in orbit. [0003] When working in orbit, once it is subjected to various external and internal disturbances, it is easy to excite vibrations with low frequency, large amplitude, and long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/44
Inventor 朱东方谭天乐李结冻朱春艳宋婷孙宏丽
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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