SYSTEM AND METHOD FOR DETECTING DEFECTS IN STATIONARY COMPONENTS OF ROTARY MACHINES

摘要

A method implemented by at least one processor, includes receiving an acoustic signal from an acoustic emission sensor disposed at a predetermined location on a casing of a rotary machine operating in a transient condition. The method further includes applying a signal envelope extraction technique to the acoustic signal to generate a transformed acoustic signal. The method also includes generating an acoustic signature signal based on the transformed acoustic signal and determining a crack defect on a stationary component of the rotary machine based on the acoustic signature signal.

主权项

1. A method comprising:
receiving an acoustic signal from an acoustic emission sensor disposed at a predetermined location on a casing of a rotary machine operating in a transient condition; applying a signal envelope extraction technique to the acoustic signal to generate a transformed acoustic signal; generating an acoustic signature signal based on the transformed acoustic signal; and determining a crack defect on a stationary component of the rotary machine based on the acoustic signature signal.