Application of CFD Analysis for Rotating Machinery—Part I: Hydrodynamic, Hydrostatic Bearings and Squeeze Film Damper
Author:
Guo Zenglin1, Hirano Toshio1, Kirk R. Gordon1
Affiliation:
1. Rotor Dynamics Laboratory, Mechanical Engineering Department, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
Abstract
The traditional method for bearing and damper analysis usually involves a development of rather complicated numerical calculation programs that may just focus on a simplified and specific physical model. The application of the general CFD codes may make this analysis available and effective where complex flow geometries are involved or when more detailed solutions are needed. In this study, CFX-TASCflow is employed to simulate various fixed geometry fluid-film bearing and damper designs. Some of the capabilities in CFX-TASCflow are applied to simulate the pressure field and calculate the static and dynamic characteristics of hydrodynamic, hydrostatic, and hybrid bearings as well as squeeze film dampers. The comparison between the CFD analysis and current computer programs used in industry has been made. The results show reasonable agreement in general. Some of the possible reasons for the differences are discussed. It leaves room for further investigation and improvement on the methods of computation.
Publisher
ASME International
Subject
Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering
Reference10 articles.
1. Pinkus, O., and Sternlicht, B., 1961, Theory of Hydrodynamic Lubrication, McGraw-Hill, New York. 2. Lund, J. W.
, 1964, “Spring and Damping Coefficients for the Tilting-Pad Journal Bearing,” ASLE Trans., 7(4), pp. 342–352. 3. Nicholas, J. C., Gunter, E. J., and Allaire, P. E., 1979, “Stiffness and Damping Coefficients for the Five Pad Tilting Pad Bearing,” ASLE Trans., 22(2), pp. 112–124. 4. Nicholas, J. C., and Kirk, R. G., 1979, “Selection and Design of Tilting Pad and Fixed Lobe Journal Bearings for Optimum Turbo-Rotor Dynamics,” Proceedings of the 8th Turbo-machinery Symposium, Texas A&M University, College Station, Texas, pp. 43–58. 5. Nicholas, J. C., and Kirk, R. G., 1981, “Theory and Application of Multi-Pocket Bearings for Optimum Turbo Rotor Stability,” ASLE Trans., 24(2), pp. 269–275.
Cited by
86 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|