Research on the excitation probe method for vibration measurement of aircraft engine piping systems

Abstract The aircraft engine piping system is a critical component for ensuring the reliable operation of the engine, and vibration is the primary cause of frequent piping failures. In this paper, a new measurement method is proposed that combines the excitation probe technique with vibration image processing technology, addressing the limitations of existing vibration frequency measurement methods. This approach is suitable for measuring the vibration frequencies of pipes under various conditions, including those with different fluid properties, pipe diameters, and non-visualized pipelines. The research shows that this vibration measurement method can be applied in the design or structural modification of high-pressure, high-speed fluid pipelines, as well as in guiding the development of aerodynamic test devices.