Using a microphone to perform technical condition vibroacoustic diagnostics of a gas turbine engine’s bearing supports

Abstract

Ensuring product quality, due to the special requirements for reliability in the aviation industry, is the main and primary task. For successful and trouble-free operation, it is necessary to monitor the technical condition of all systems, especially the most critical ones, such as engines. The technical condition of the gas turbine engine directly affects flight safety. Bearing supports are considered one of the most important transmission components, which are most susceptible to wear and damage. The goal of this work is to develop a method for conducting vibroacoustic diagnostics that addresses the challenges related to the inaccessibility of the studied unit and the change in vibration vector during engine operation, which significantly impairs the informativeness of vibration sensor measurements.