METHOD FOR MONITORING THE CHARASTERISTICS OF LIQUID-PROPELLANT ROCKET ENGINE UNITS DURING FIRING TESTS Russian patent published in 2021 - IPC G01M15/14 G05B17/02 F02K9/42 

FIELD: liquid-propellant rocket engines (LRE).

SUBSTANCE: The control method consists in the fact that additional parameters - proportionality coefficients - are introduced into the mathematical model into the equations containing the characteristics of autonomous testing of units. The parameters of the model are assigned their measured values, the calculated values ​​of the proportionality coefficients are determined, they are multiplied by the calculated values ​​of the characteristics of autonomous tests, realized during the fire test, and the controlled values ​​of the characteristics of the units are obtained. At the beginning of each test mode, the values ​​of the characteristics of the units are taken as reference, and in the subsequent measurement cycles, the deviations of the current values ​​of the characteristics of the units from the reference ones are determined, thereby monitoring their change, for example, as a result of a malfunction.

EFFECT: technical result consists in increasing the reliability of the estimation of the parameters of the liquid-propellant engine during firing tests.

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