METHOD OF CONTROLLING NON-STATIONARY RADIATION HEATING OF AN AIRCRAFT STRUCTURE SAMPLE Russian patent published in 2024 - IPC G05D23/20 G01N25/72 G01M9/04 

FIELD: thermodynamics.

SUBSTANCE: invention relates to thermodynamics in the field of control of processes of non-stationary radiation heating and consists in development of a method for contactless control of radiation heating of a structure in a vacuum. A method is developed for contactless control of radiation heating of a structure in a vacuum, based on readings of a control thermocouple located above the surface of the structure at a distance of not more than 5 mm from it. To determine the control program based on the thermocouple readings, a system of tasks is solved simultaneously by a step-by-step method. Conducted design studies have shown that the change in the real limits of the diameter of the thermocouple, its blackness degree and screen blackness degree have practically no effect on thermocouple readings. There is complete coincidence of the experimental temperature change curve of the structure with the flight one, with the exception of the final temperature drop section, where the heat flow from the radiators becomes negative, which is not reproduced in the experiment.

EFFECT: presented results indicate practically the absence of methodical errors in the proposed control method and its high accuracy, with the exception of the flight sections, where the heat flux from the radiators becomes negative.

1 cl, 5 dwg