COULOMB-FRICTION DAMPING EFFECTS IN ELASTICALLY SUPPORTED GAS FOIL BEARINGS

被引：84

作者：

PENG, JP

CARPINO, M

机构：

[1] Department of Mechanical Engineering, Pennsylvania State University, University Park, PA

来源：

TRIBOLOGY TRANSACTIONS | 1994年 / 37卷 / 01期

基金：

美国国家航空航天局;

关键词：

FOIL BEARING; JOURNAL;

D O I：

10.1080/10402009408983270

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A theoretical model is developed to investigate the effect of Coulomb damping in the sub-foil structure of a foil bearing. Equivalent viscous damping is found for the Coulomb friction. The foil is treated as a continuous perfectly extensible surface on an elastic foundation. The fluid is modeled with the compressible Reynolds equation. A perturbation approach is used to determine the bearing stiffness and damping coefficients from the coupled fluid-structural model. Results are presented for foil bearings with an elastic foundation constructed of a corrugated foil.

引用

页码：91 / 98

页数：8

共 11 条

[1]

Anderson D. A., 2020, COMPUTATIONAL FLUID, VFourth

[2]

CARPINO M, 1991, 27TH AIAA SAE ASME A

[3]

DENHARTOG JP, 1952, ADV STRENGTH MATERIA

[4]

Ehrich F, 1992, HDB ROTORDYNAMICS

[5] DEVELOPMENT OF FOIL JOURNAL BEARINGS FOR HIGH LOAD-CAPACITY AND HIGH-SPEED WHIRL STABILITY [J].

HESHMAT, H ;

SHAPIRO, W ;

GRAY, S .

JOURNAL OF LUBRICATION TECHNOLOGY-TRANSACTIONS OF THE ASME, 1982, 104 (02) :149-156

[6] ANALYSIS OF GAS-LUBRICATED FOIL JOURNAL BEARINGS [J].

HESHMAT, H ;

WALOWIT, JA ;

PINKUS, O .

JOURNAL OF LUBRICATION TECHNOLOGY-TRANSACTIONS OF THE ASME, 1983, 105 (04) :647-655

[7] COMPLIANT FOIL BEARING STRUCTURAL STIFFNESS ANALYSIS .1. THEORETICAL-MODEL INCLUDING STRIP AND VARIABLE BUMP FOIL GEOMETRY [J].

KU, CPR ;

HESHMAT, H .

JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 1992, 114 (02) :394-400

[8]

Lund JW, 1978, ASME ENG C, P1

[9]

OH KP, 1991, ASME J APPL MECH

[10]

PENG JP, 1992, ASME92TRIB2J PREPR

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