METHOD OF MONITORING RUBBING BETWEEN A ROTARY PART AND A STATIONARY PART IN A ROTATING TURBOMACHINE MONITORING ARRANGEMENT AND TURBOMACHINE

摘要

A device for monitoring friction between a rotating part and a stationary part in a rotating turbomachine comprises at least one mechanical vibration detector (11, 12, 13) for measuring mechanical vibration at at least one point of the turbomachine, the turbomachine at least one particle detector 21 for measuring debris passing through at least one section of the flow path of an electronic monitoring unit (50), arranged to acquire and process signals generated by the particle detector; The electronic monitoring unit 50 uses mainly vibration measurements to estimate the presence of friction and mainly uses debris measurements to estimate the severity of friction.