METHOD OF HEAT-VACUUM TEST OF SPACECRAFT

摘要

FIELD: aviation.SUBSTANCE: method of heat-vacuum tests of spacecrafts consists in evacuating the chamber with the spacecraft inside down to the pressure excluding convective heat exchange in the chamber, and effecting the spacecraft by natural thermal flows by means of the simulator of external thermal flows. The spacecraft is effected by the temperature created by the simulator of external thermal flows which is equivalent to average radiation value of equilibrium temperatures of external surfaces of the spacecraft in orbital flight. The temperature is determined by thermal calculation without internal thermal loading of the spacecraft. Simultaneously the internal thermal loading of the spacecraft corresponding to the regular cyclogram of energy consumption of the spacecraft in orbital flight is performed by activating of the spacecraft devices using the land test and control equipment.EFFECT: decrease of labour and power costs while having results with necessary degree of reliability.1 dwg