Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Volume 230, Issue 10, Pages 1221-1230Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1350650116631275
Keywords
Porous gas thrust bearing; dynamic characteristics; static load capacity
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Funding
- National Science Foundation of China [11172065, 11472078]
- Jiangsu University-Industry Collaboration Project [BY2015070-26]
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This article studies the static load capacity, dynamic stiffness, and damping coefficient of the externally pressurized annular porous gas thrust bearings. The Reynolds equation for the bearing is established using linear perturbation; for the first time, three degrees of freedom are considered in the modeling. The steady state equations are solved to obtain the static load capacity, and the first-order perturbation equations are solved for the dynamic characteristics. The influences of various bearing parameters on the static and dynamic characteristics are evaluated. Results from the numerical simulation prove that the proposed method is a valid mean of estimating the static and dynamic characteristics of the porous gas thrust bearings.
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