Abstract
This paper concentrates on the problem of identification of surge phenomena in compressors of aviation gas-turbine engines. Applicability of a surge detection method using expansion impulse response of the engine in a series of orthonormal Walsh functions is proved. As a diagnostic sign of a surge the Walsh - Fourier coefficients are accepted. The algorithm and the functional chart of the identification device of a surge are developed. Formation of classes is carried out on the basis of the analysis of a large number of experimental curves of change of parameters in workflow at a surge and normal operation of the engine.
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