Parametric identification method of the gas turbine engine mathematical models on the determined work modes

Abstract

There has been carried out the analysis of the existing parametric identification mathematical models methods of the gas turbine engine on the determined work modes. There has been offered a new identification method. The method has been developed on the basis of the synthesis of the traditional method and one of the formalized methods (the least square method) and on condition of preserving the advantages of these methods it eliminates the limitations they possess. In the method there have been considered the correlations between the unknowns what allows to reduce substantially the number of the unknowns in the identification task and to increase the physical meaning of the task received. The method has been tested while carrying out numerical experiments and identifying the mathematical model of the designed gas turbine engine according to the results of the bench test.