Effects of bearing stiffness anisotropy on hydrostatic micro gas journal bearing dynamic behavior

Journal of Engineering for Gas Turbines and Power

Volumn 129, Issue 1, 2007, Pages 177-184

  Liu, L X ^a   Spakovszky, Z S ^a  

^a Massachusetts Institute of Technology   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANISOTROPY; ASPECT RATIO; COMPUTER SIMULATION; FLOW FIELDS; FLOW OF GASES; HYDROSTATIC BEARINGS; JOURNAL BEARINGS; STIFFNESS;

BEARING STIFFNESS ANISOTROPY; HYDROSTATIC STIFFNESS; MICROENGINES; MICROHYDROSTATIC GAS JOURNAL BEARINGS;

GAS ENGINES;

ANISOTROPY; ASPECT RATIO; COMPUTER SIMULATION; FLOW FIELDS; FLOW OF GASES; GAS ENGINES; HYDROSTATIC BEARINGS; JOURNAL BEARINGS; STIFFNESS;

EID: 34248376100     PISSN: 07424795     EISSN: None     Source Type: Journal    
DOI: 10.1115/1.2180813     Document Type: Article

References (18)

1. Larson, R., and Richardson, H., 1962, "A Preliminary Study of Whirl Instability for Pressurized Gas Bearings," ASME J. Basic Eng., 84, pp. 511-520.
2. Piekos, E., Orr, D., Jacobson, S., Ehrich, F., and Breuer, K., 1997, "Design and Analysis of Microfabricated High Speed Gas Journal Bearings," 28th AIAA Fluid Dynamics Conference, Snowmass Village, CO, AIAA Paper No. 97-1966.
3. Ehrich, F., and Jacobson, S., 2003, "Development of High-Speed Gas Bearings for High-Power-Density Micro-Devices," ASME J. Eng. Gas Turbines Power, 125, pp. 141-148.
4. Epstein, A., 2004, "Micro-Engines-Scholar Lecture," ASME J. Turbomach., 5(2), pp. 204-211.
5. Fréchette, L., Jacobson, S., Breuer, K., Ehrich, F., Ghodssi, R., Khanna, R., Wong, C., Zhang, X., Schmidt, M., and Epstein, A., 2005, "High-Speed Microfabricated Silicon Turbomachinery and Fluid Film Bearings," J. Microelectromech. Syst., 14(1), pp. 141-152.
6. Liu, L., Teo, C., Epstein, A., and Spakovszky, Z., 2005, "Hydrostatic Gas Journal Bearings for Micro-Turbomachinery," ASME J. Vibr. Accost., 127(2), pp. 157-164.
7. Lomakin, A., 1958, "Calculation of Critical Number of Revolutions and the Conditions Necessary for Dynamic Stability of Rotors in High-Pressure Hydraulic Machines When Taking into Account Forces Originating in Sealings," Power and Mechanical Engineering (in Russian).
8. Lin, C., 1999, "Development of a Microfabricated Turbine-Driven Air Bearing Rig," Ph.D. thesis, Department of Aeronautics and Astronautics, MIT, Cambridge, MA.
9. Spakovszky, Z., and Liu, L., 2005, "Scaling Laws for Ultra-Short Hydrostatic Gas Journal Bearings," ASME J. Vibr. Acoust., 127(3), pp. 254-261.
10. Fuller, D., 1969, "A Review of the State-of-the-Art for the Design of Self-Acting Gas-Lubricated Bearings," ASME J. Lubr. Technol., 91(1), pp. 1-16.
11. Garner, D., Lee, C., and Martin, F., 1980, "Stability of Profile Bore Bearings: Influence of Bearing Type Selection," Tribol. Int., 13(5), pp. 204-210.
12. Piekos, E., 2000, "Numerical Simulation of Gas-LubricaLed Journal Bearings for Microfabricated Machines," Ph.D. thesis, Department of Aeronautics and Astronautics, MIT, Cambridge, MA.
13. Kim, D., Lee, S., Bryant, M., and Ling, F., 2004, "Hydrodynamic Performance of Gas Microbearings," ASME J. Tribol., 126, pp. 711-718.
14. Smith, D., 1933, "Motion of a Rotor Carried by a Flexible Shaft in Flexible Bearings," Proc. R. Soc. London, Ser. A, 142(864), pp. 92-118.
15. Gunter, E., and Trumper, P., 1969, "The Influence of Internal Friction on the Stability of High Speed Rotors With Anisotropic Supports," ASME J. Eng. Ind., Nov., pp. 1105-1113.
16. Ehrich, F., 1989, "The Role of Bearing Support Stiffness Anisotropy in Suppression of Rotordynamic Instability," ASME DTC-12th Biennial Conference on Mechanical Vibration and Noise, September, Montreal.
17. Teo, C., and Spakovszky, Z., 2005, "Modeling and Experimental Investigation of Micro Hydrostatic Gas Thrust Bearings for Micro-Turbomachines," ASME Paper No. GT-2005-68222.
18. Teo, C.-J., 2006, "MEMS Turbomachinery Rotordynamics: Modeling, Design and Testing," Ph.D. thesis, Department of Aeronautics and Astronautics, MIT, Cambridge, MA.