Abstract: Root causes of several recent crack failures in turbine units are attributed to oscillation and interaction between generator of turbine unit and devices on the grid, where torsional vibration of the rotor bearing system ...

Abstract: Crack failures continually occur in shafts of turbine generator, where grid disturbance is an important cause. To estimate influences of grid disturbance, coupled torsional vibration and fatigue damage of turbine generator ...

Abstract: In recent years, bowing of steam turbine rotor under long time service occurs in several highparameter units. Collected data show that the bending of the haywire rotor is increasing continuously, which results in excessive ...

Abstract: The central rod-fastened rotor of gas turbine exhibits pronounced noncontinuous characteristics due to the large number of contact interfaces between the compressor and turbine disks. It is necessary to establish an accurate ...

Abstract: Rod-fastened rotor is the core rotating section of the heavy-duty gas turbine. To accurately analyze its dynamic characteristics, the contact model for the disk contact interface needs to be defined and established. ...