METHOD OF DIAGNOSTICS OF THE TECHNICAL CONDITION OF THE AVIATION DRIVE AGGREGATE Russian patent published in 2018 - IPC G01M15/14 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aviation, in particular to methods for monitoring and diagnosing the technical condition of aircraft engine assemblies by vibration of their bodies with running engines. In the method for diagnosing the technical condition of the aircraft engine assembly, the threshold values of the vibration parameter of the parts of the aircraft engine assembly are determined by the results of bench tests, based on the clock signal f(n), the minimum ƒ_minRS and the maximum ƒ_maxRS the values of the rotation speed of the drive in a given time interval T, on the basis of the values obtained ƒ_minRS and ƒ_maxRS calculate the fundamental frequencies of forced oscillations excited by the parts of the aircraft drive unit, on the basis of the signal s(n), the vibration parameter values of the parts of the aircraft engine assembly are determined at the fundamental frequencies of their forced oscillations in the time interval T, and then compare the obtained values of the vibration parameter with its threshold values and based on a comparison of the values of the vibration parameter make a conclusion about the technical state of the aircraft drive unit.

EFFECT: technical result achieved in the claimed invention is to improve the accuracy of diagnosing the technical condition of an aircraft drive.

1 cl, 9 dwg