1. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
Schematic of a flexible rotor system

2. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
A rotating shaft with a bearing: (a) physical bearing with finite length and (b) pointwise bearing model (pointwise springs and dampers)

3. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
A stepped flexible rotor system in design: (a) the bare system with mounted disks, (b) the bare system with nonbearing regions (shaded areas), (c) the bare system with virtual bearings, and (d) the virtual rotor system with pointwise bearings

4. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
Unbalanced mass response of a flexible rotor system versus its shaft rotation speed

5. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
Example I: (a) the bare system with virtual bearings and nonbearing regions and (b) the virtual rotor system with pointwise bearings

6. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
Example I: spatial distributions of vibration amplitude of the rotor system in the previous design and the proposed optimal design

7. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
A simply supported flexible rotor system in example II: (a) the bare system, (b) the bare system with virtual bearings, and (c) the virtual rotor system with pointwise bearings

8. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
Example II: the unbalanced mass response of the rotor system versus its rotation speed

9. Date of download: 11/15/2017
Copyright © ASME. All rights reserved.
From: Optimal Vibration Reduction of Flexible Rotor Systems By the Virtual Bearing Method
J. Vib. Acoust. 2017;140(2): doi: /
Figure Legend:
The spatial distributions of vibration amplitude at operating speed (8000 rpm) in example II: dashed line—the optimally designed rotor system with three bearings, and the solid line—the virtual rotor system with nine bearings