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Satellite in-orbit free boundary condition simulation device

A technology for simulating devices and boundary conditions, applied in the field of satellite dynamics experiments, can solve problems such as lack of availability, and achieve the effect of improving the technical level and meeting the needs of experimental verification

Active Publication Date: 2013-10-23
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

At present, there is no mature method and device for on-orbit free boundary condition simulation of satellites, especially large satellites.

Method used

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  • Satellite in-orbit free boundary condition simulation device
  • Satellite in-orbit free boundary condition simulation device
  • Satellite in-orbit free boundary condition simulation device

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Embodiment Construction

[0020] The satellite on-orbit free boundary condition simulating device of the present invention will be described in detail below, but the description is only exemplary and is not intended to limit the protection scope of the present invention.

[0021] figure 1 It is a structural schematic diagram of the satellite on-orbit free boundary condition simulation device of the present invention. The simulation device mainly includes an upper satellite docking plate 1 for providing a support interface for the satellite, a support spring 2, a satellite balance adjustment device 3, a limit protection device 4, and a fixed connection interface with the ground for providing a fixed interface for the simulation device. The support plate 5 of the lower part of the support, the upper and lower satellite docking plates 1 and the support plate 5 are correspondingly arranged according to the satellite mechanical structure, preferably circular or polygonal, and the two ends of a plurality of ...

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Abstract

The invention discloses a satellite in-orbit free boundary condition simulation device. The satellite in-orbit free boundary condition simulation device mainly comprises a satellite butt joint plate, supporting springs, satellite balance adjusting devices, a limiting protecting device and a supporting plate, wherein the satellite butt joint plate at the upper portion of the device and the supporting plate at the lower portion of the device are correspondingly arranged according to the satellite mechanical structure and are generally of an annulus shape, the two ends of each supporting spring are fixedly connected to the annular portions between the satellite butt joint plate and the supporting plate respectively and evenly distributed around the annular portions so that a satellite can be elastically supported, the satellite balance adjusting devices which correspond to the supporting springs in number are fixedly arranged between the bottoms of the supporting springs and the supporting plate so that the supporting springs are supported to adjust inclination of the satellite and the simulation device caused by eccentricity of the satellite, and therefore the satellite is kept horizontal after being connected to the simulation device in a butt joint mode. According to the satellite in-orbit free boundary condition simulation device, the level of the satellite dynamics testing technique is improved, and requirements for verification of in-orbit dynamics characteristics and in-orbit micro-vibration environment tests in the process of developing satellites especially high-precision earth observation satellites are met.

Description

technical field [0001] The invention belongs to the technical field of satellite dynamics test, and in particular relates to a ground simulation device for satellite on-orbit free boundary conditions. Background technique [0002] Free boundary conditions are the mechanical boundary conditions of satellites and other spacecraft during orbital flight. During the ground development process of satellites and other spacecraft, in order to obtain the structural dynamics characteristics of satellites in orbit and verify satellites in orbit For high-precision technical indicators and reliability during missions, dynamic tests such as modal tests and micro-vibration tests must be performed on the satellite on the ground. When testing satellites on the ground, it is necessary to simulate the free boundary conditions of the satellites in orbit. The ideal situation is to support the weight of the satellites without imposing any constraints on the satellites, that is, to keep the satell...

Claims

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Application Information

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IPC IPC(8): B64G7/00
Inventor 刘明辉王剑韩晓健冯咬齐张俊刚樊世超岳志勇焦安超
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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