0
TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Control System Design for Active Lubrication With Theoretical and Experimental Examples

[+] Author and Article Information
I. F. Santos, A. Scalabrin

DPM–Department of Mechanical Design, UNICAMP–State University of Campinas, Campinas, Sao Paulo 13083-970, Brazil

J. Eng. Gas Turbines Power 125(1), 75-80 (Dec 27, 2002) (6 pages) doi:10.1115/1.1451757 History: Received November 01, 1999; Revised February 01, 2000; Online December 27, 2002
Copyright © 2003 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Frequency response curves of the rotor for five different cases: (a) –conventionally lubricated; (b) [[dot_dash_line]] hybridly lubricated; (c) [[dashed_line]]actively lubricated with displacement feedback control; (d) [[dotted_line]] actively lubricated with velocity feedback control; (e) –actively lubricated with displacement and velocity feedback control
Grahic Jump Location
Experimental results showing the vibration amplitude of the rotor, when the control system is turned on after 0.5 s
Grahic Jump Location
Coupling between servovalves and bearing by means of pipelines
Grahic Jump Location
Tilting-pad journal bearing with orifices machined on the pad surfaces
Grahic Jump Location
Details of the pad parts and pipeline connections for injecting oil into the bearing gap. From left to right one can see feedline, the inferior part of the pad and the superior one (with 5 and 15 orifices), which attached to each other by screws create a small sealed reservoir.
Grahic Jump Location
Scheme of the operational principle of the active lubrication
Grahic Jump Location
Global system—rigid rotor, active bearing, and servovalves
Grahic Jump Location
Real part of the eigenvalues as a function of displacement feedback gains G1 and G3. Point A is related to the y-direction and point B to the z-direction.
Grahic Jump Location
Real part of the eigenvalues as a function of velocity feedback gains G2 and G4. Point A is related to the y-direction and point B to the z-direction.

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In