Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Model of slant crack in rotor. Crack area is marked as gray, with crack direction at 45 deg to the axial direction, and crack ratios as 0.2 and 0.4 (crack depth/diameter, 0.2 is shown here).

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Profile of rotor bearing system in steam-turbine generator

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Natural frequencies in torsional modes of normal and cracked rotor systems, obtained with finite element model

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Modal shapes of torsional modes in the rotor bearing system, obtained with finite element model

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Vibration in perpendicular direction close to bearing 7 with torsional excitation, obtained with finite element model. Ranges in y-axis are amplified to show the local sidebands. (a) Normal rotor system, (b) cracked rotor system (0.2), and (c) cracked rotor system (0.4).

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Vibration collected in practical steam turbine unit (in perpendicular direction, from field data, TE—torsional excitation): (a) vibration (no TE), (b) vibration (TE), (c) spectrum (no TE), and (d) spectrum (TE)

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Orbits of rotor system in normal and cracked conditions with torsional excitation (TE), obtained with finite element model: (a) normal, no TE, (b) normal, TE, (c) cracked 0.2, no TE, (d) cracked 0.2, TE, (e) cracked 0.4, no TE, and (f) cracked 0.4, TE

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Orbits at bearing 7 in cracked rotor system of a steam turbine unit (from field data): (a) no torsional excitation and (b) with torsional excitation

Date of download: 12/31/2017 Copyright © ASME. All rights reserved. From: Dynamics of Slant Cracked Rotor for a Steam Turbine Generator System J. Eng. Gas Turbines Power. 2017;139(6):062502-062502-7. doi:10.1115/1.4035323 Figure Legend: Axial vibration of rotor system with torsional excitation, obtained with finite element model: (a) normal rotor and (b) cracked rotor (0.2)