Finite Element Approach to the Prediction of Foil Bearing Rotor Dynamic Coefficients-Reference-Cited by-同舟云学术

Finite Element Approach to the Prediction of Foil Bearing Rotor Dynamic Coefficients

Published:1997-01-01 Issue:1 Volume:119 Page:85-90
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Peng J.-P.¹,Carpino M.²

Affiliation:

1. Seagate Technology, Bloomington, MN 55435

2. Department of Mechanical Engineering, Pennsylvania State University, University Park, PA 16802

Abstract

A finite element perturbation approach to the prediction of foil bearing stiffness and damping coefficients is presented. The fluid lubricant is modeled as a simple barotropic fluid which is described by the Reynolds equation. The structural model includes membrane, bending, and elastic foundation effects in a general geometry. The equivalent viscous damping of the Coulomb friction caused by the foil relative motion is included in the structural calculation. Bearing stiffness and damping coefficients are predicted for an air-lubricated foil bearing with a corrugated sub-foil. The effects of the bearing number, bearing compliance, sub-foil Coulomb friction, and foil membrane stiffness on the bearing dynamic coefficients are discussed.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/119/1/85/5540155/85_1.pdf

Reference19 articles.

1. Barnum T. B. , and ElrodH. G., 1971, “A Theoretical Study of the Dynamic Behavior of Foil Bearings,” ASME JOURNAL OF LUBRICATION TECHNOLOGY, Vol. 93, pp. 133–142.

2. Catpino, M., and Peng, J.-P., 1991, “Theoretical Performance of Foil Journal Bearings,” presented at the AIAA/SAE/ASME/ASEE 27th Joint Propulsion Conference, paper no. AIAA-91-2105.

3. Carpino M. , MedvetzL. A., and PengJ.-P., 1994a, “Effects of Membrane Stresses in the Prediction of Foil Bearing Performance,” STLE Tribology Transactions, Vol. 37, pp. 43–50.

4. Carpino M. , PengJ.-P., and MedvetzL. A., 1994b, “Misalignment in a Complete Shell Gas Foil Journal Bearing,” STLE Tribology Transactions, Vol. 37, pp. 829–835.

5. Heshmat H. , ShapiroW., and GrayS., 1982, “Development of Foil Journal Bearings for High Load Capacity and High Speed Whirl Stability,” ASME JOURNAL OF LUBRICATION TECHNOLOGY, Vol. 104, pp. 149–156.

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