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

摘要

An apparatus for monitoring friction between a rotating part and a stationary part in a rotating turbo machine includes at least one mechanical vibration detector (11, 12, 13) for measuring mechanical vibration at at least one point of the turbo machine, At least one particle detector (21) for measuring a debris passing through at least one section of the flow path of the vibrating detector and the particle detector (21) And an electronic monitoring unit (50) arranged to acquire and process signals generated by the particle detector; The electronic monitoring unit 50 uses debris measurements to primarily estimate the presence of friction and to estimate the severity of friction.