On the stability of a rigid rotor in turbulent finite hydrodynamic journal bearings

Anjani Kumar; N. S. Rao

doi:10.1016/0043-1648(92)90239-5

On the stability of a rigid rotor in turbulent finite hydrodynamic journal bearings

Anjani Kumar, N. S. Rao

Research output: Contribution to journal › Article › peer-review

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Abstract

The stability characteristics of finite journal bearings in turbulent regime were investigated theoretically, following Constantinescu's turbulent lubrication theory. Stability curves were drawn for different slenderness ratios for Reynolds numbers up to 50 000. Computed results are compared with published results (H. Hashimoto, S. Wada and J.-I. Ito, J. Tribol. Trans. ASME, 109 (1987) 307). Turbulence causes the stability of the rotor to deteriorate. However, the stability of the rotor improves with a decrease in the L/D ratio of the bearing.

Original language	English
Pages (from-to)	11-21
Number of pages	11
Journal	Wear
Volume	154
Issue number	1
DOIs	https://doi.org/10.1016/0043-1648(92)90239-5
State	Published - Apr 15 1992
Externally published	Yes

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abstract = "The stability characteristics of finite journal bearings in turbulent regime were investigated theoretically, following Constantinescu's turbulent lubrication theory. Stability curves were drawn for different slenderness ratios for Reynolds numbers up to 50 000. Computed results are compared with published results (H. Hashimoto, S. Wada and J.-I. Ito, J. Tribol. Trans. ASME, 109 (1987) 307). Turbulence causes the stability of the rotor to deteriorate. However, the stability of the rotor improves with a decrease in the L/D ratio of the bearing.",

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AB - The stability characteristics of finite journal bearings in turbulent regime were investigated theoretically, following Constantinescu's turbulent lubrication theory. Stability curves were drawn for different slenderness ratios for Reynolds numbers up to 50 000. Computed results are compared with published results (H. Hashimoto, S. Wada and J.-I. Ito, J. Tribol. Trans. ASME, 109 (1987) 307). Turbulence causes the stability of the rotor to deteriorate. However, the stability of the rotor improves with a decrease in the L/D ratio of the bearing.

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On the stability of a rigid rotor in turbulent finite hydrodynamic journal bearings

Abstract

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