Heat network method-based virtual heat test system and heat test method for spacecraft

A technology of thermal network method and thermal test, which is applied in the field of spacecraft ground environmental test, can solve the problems of not establishing a virtual thermal test environment and platform, predicting the balance of external heat flow, and optimizing working conditions, etc., and achieves convenient implementation, simple structure, The effect of good economic benefits

Inactive Publication Date: 2018-03-13
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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Problems solved by technology

However, in terms of the practical application of virtual thermal test technology, only the equilibrium temperature of constant internal heat source and constant external heat flow can be predicted in China, and the equilibrium prediction and working condition optimization of the situation of variable internal heat source and variable external heat flow cannot be carried out. Thermal Test Environment and Platform

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  • Heat network method-based virtual heat test system and heat test method for spacecraft

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Embodiment Construction

[0016] The external heat flow simulation devices commonly used in my country's spacecraft heat balance tests include infrared heaters and thin-film electric heaters. Taking a small thermal control star as the research object, the heat balance test under the external heat flow simulation method of the infrared heating cage is used to analyze the test results, and the virtual thermal test method is used to model the test system and calculate the heat flow on the surface of the thermal control star Density distribution to verify the feasibility of the virtual thermal test method.

[0017] The spacecraft virtual thermal test method of the present invention will be described in detail below with reference to the accompanying drawings, but this description is only exemplary and is not intended to limit the protection scope of the present invention.

[0018] The whole workflow is generally as follows:

[0019] The thermal control star is a cuboid box structure. The thermal control s...

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Abstract

The invention provides a virtual heat test system for a spacecraft. The system consists of a database system, a computing subsystem and a data analysis subsystem. The invention furthermore discloses aheat network method-based virtual heat test method for the spacecraft. Based on a heat transfer theory, various heat transfer processes are solved by adopting related numerical methods of numerical heat transfer and computational radiology; and based on a basic thought of a multilayer region decomposition algorithm, coupled solving among multiple regions and multiple heat transfer processes is realized. The virtual heat test method for the spacecraft has the characteristics and advantages of simple structure, convenient implementation and the like, and can meet basic demands of users on heattest assessment contents.

Description

technical field [0001] The invention belongs to the field of spacecraft ground environment test. The simulation test system developed based on software engineering does not use or partially use actual hardware to construct the test environment, and uses interactive technology and test analysis technology to complete the actual physical test method. Background technique [0002] After the spacecraft enters the orbit, it will be in the environment of high vacuum, cold darkness and thermal radiation (solar radiation, planetary albedo and planetary infrared radiation) for a long time. In order for the spacecraft to work normally and reliably in these environments and complete various For the scheduled mission, during the development process, a sufficient thermal balance test must be carried out on the spacecraft in accordance with various international and domestic test specifications or standards under the conditions of high vacuum, cold darkness and simulated heat flow outside ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F2119/08
Inventor 曹志松杨晓宁林博颖李西园王晶尚永红张立伟李明利
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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