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

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 ...

AI Technical Summary

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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