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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Negative Stiffness Coefficients for Magnetic Actuators Using Laplace’s Equation

[+] Author and Article Information
L. S. Stephens

Department of Mechanical Engineering, University of Kentucky, Lexington, KY 40506-0108   e-mail: stephens@engr.uky.edu

M. A. Casemore

Mechanical Engineering Department Louisiana State University, 2508 CEBA Baton Rouge, LA 70803

J. Eng. Gas Turbines Power 123(3), 612-618 (Oct 01, 2000) (7 pages) doi:10.1115/1.1377874 History: Received October 01, 1999; Revised October 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Negative stiffness coefficient: Case 4
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Flux density for eccentric journal: Case 4
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Negative stiffness coefficient: Case 3
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Flux density for eccentric journal: Case 3
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Negative stiffness coefficient: Case 2
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Flux density for eccentric journal: Case 2
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Negative stiffness coefficient: Case 1
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Flux density for eccentric journal: Case 1
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Flux density for centered journal: Case 1
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Magnetomotive force for centered journal: Case 1
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Graphical representation of boundary conditions
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Bipolar coordinate transformation of air gap
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Annular magnetic actuator air gap region
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Typical magnetic actuators

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