FEATURES AND DIAGNOSIS OF SELF-EXCITED VIBRATION ON A DOMESTIC 200 MW TURBINE UNIT[J]. Thermal power generation, 1999, (4). DOI: 10.19666/j.rlfd.1999.04.013.
Abstract Self-excited vibration is often found with the shaft system of domestically 200 MW steam turbine units.Based upon relationship between the mea surement of trubine operation conditions and the features of shaft-steam vibration
some conclusions are draw in this paper by using the mechanism of self-excited vibration and the mathematical analysis in rotor dynamics.It points out that this self-excited vibration is induced by the steam dis turbance deviated from the radial-gap of HP turbine rotor.