1. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Turbocharger assembly with FABs: (a) turbocharger schematic and (b) cross section of FAB

2. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Turbocharger rotor: (a) rotor FE model and (b) free–free rotor modes at zero rotor speed

3. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
FAB journal trajectories at 5000 rpm from default initial conditions over 20 revolutions, test 1: (a) FAB1 and (b) FAB2 (SS: steady-state)

4. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
SESA results for tests 1–3: (a) perturbation exponential growth factor and (b) ratio of perturbation frequency to rotor speed

5. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Divergence of FAB journal trajectories at 6000 rpm from 1% perturbed static equilibrium over 200 revolutions, test 1: (a) FAB1 and (b) FAB2

6. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Divergence of FAB journal trajectories at 100,000 rpm from 1% perturbed static equilibrium over 250 revolutions, test 1: (a) FAB1 and (b) FAB2

7. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Frequency spectra of the test 1 limit cycles (FAB1, y-direction): (a) 6000 rpm and (b) 100,000 rpm

8. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
SESA results (perturbation exponential growth factor): tests 3–5 and tests 6–8

9. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
FAB journal trajectories at 100,000 rpm test 7 over last 50 rev/s out of 200 rev/s from 20% perturbed static equilibrium: (a) FAB1 and (b) FAB2

10. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Foil journal bearing test apparatus [21]

11. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Analyzer output for probe Ry at turbine end; coastdown from 2200 rev/s [21]

12. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
SESA results for experimental rig in Fig. 10: (a) perturbation exponential growth factor and (b) perturbation frequency

13. Date of download: 11/1/2017
Copyright © ASME. All rights reserved.
From: Nonlinear Dynamic Analysis of High Speed Oil-Free Turbomachinery With Focus on Stability and Self-Excited Vibration
J. Tribol. 2014;136(4): doi: /
Figure Legend:
Frequency spectrum of limit cycle at 2200 rev/s of right-hand FAB in Fig. 10 (y vibration): (a) predicted and (b) measurement from Ref. [21]