Year: 1983
Type: article
Abstract: A prototype monitor is developed for detection of rubbing, i.e. mechanical rotor contact with a stator, during rotations, in steam turbines and turbine generators. The monitor is designed to process, rotationally synchronized with machine rotation, acoustic signals induced by rubbing in the form of a histogram. It has the ability of improving the signal to noise ratio (S/N) by more than ten times. Verification tests, conducted for actual steam turbines, show that a weak rubbing can be detected for a low S/N.
Authors: Makoto SENOO, Shigeru IZUMI, Takashi WATANABE
Institution: Hitachi (Japan)
Language: English
Subfield: Control and Systems Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2319671129