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Satellite structure heat stability testing method

A satellite structure and test method technology, applied in the field of satellite structure thermal stability test, can solve the problems of impossibility, high cost, long thermal stability test period, etc., achieve small scale model, save time and money, and measure method mature effect

Active Publication Date: 2016-05-04
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

[0005] The invention provides a method for testing the thermal stability of a satellite structure, which uses a scaled-down model of the actual satellite structure to replace the actual object for testing, and solves the problems that the thermal stability test period of the actual object is long, expensive or even impossible

Method used

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  • Satellite structure heat stability testing method
  • Satellite structure heat stability testing method
  • Satellite structure heat stability testing method

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Embodiment 1

[0083] Such as figure 1 As shown, the thermal stability analysis of the satellite structure under certain temperature field conditions is firstly carried out, that is, the thermal deformation of the satellite structure is calculated by numerical calculation method, and at the same time, the sensitivity of the geometric and physical parameters of the structure to the thermal deformation of the structure is analyzed. analyze. Due to the complexity of the satellite structure, the results of the pure calculation method generally have large errors. Therefore, for critical and complex satellite structures, it is necessary to directly determine or verify the correctness and accuracy of the calculation method by means of test methods. For the satellite structure that needs to be tested, if the satellite structure is large, in order to reduce the time and economic cost, choose to use the satellite structure thermal stability model test method for the test. The satellite structure ther...

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Abstract

The invention provides a satellite structure heat stability testing method. A satellite structure material object scaling-down model is used for replacing a satellite structure material object for performing a heat stability similarity test, and the heat stability of the satellite structure material object is obtained through a similar mathematic relation and a model testing result; the satellite structure material object is satellite parts or components. The satellite structure material object scaling-down model is used for replacing the material object for testing, the whole process of whole structure heat deformation under the circumstance can be clearly and visually shown, and therefore the problems that the period is long, consumption is large and even a test cannot be performed when the material object is used for the heat stability test are solved.

Description

technical field [0001] The invention relates to the technical field of spacecraft structure ground tests, in particular to a method for testing the thermal stability of satellite structures. Background technique [0002] Based on military and civilian considerations, various space powers in the world have successively developed various remote sensing satellites for the purpose of earth observation, and gradually moved towards commercialization, such as Landsat, Ikonos, QuickBird, WorldView, GeoEye in the United States, SPOT in France, Japan's ASTER, ALOS, India's Cartosat, etc. In order to get rid of the long-term reliance on foreign remote sensing satellites such as the United States and France in my country's remote sensing data market, my country has successively developed and launched a series of land remote sensing satellites, such as the resource series satellites and ZY-3 satellites, but their performance is not as good as that of foreign advanced countries. There is ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/72
CPCG01N25/72
Inventor 史海涛高洪涛任璐张晓峰徐庆鹤卢清荣
Owner BEIJING INST OF SPACECRAFT SYST ENG
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