Journal Bearing Rotor Speed Effect on Dynamics Coefficients and Film Pressure

Nai Wen Hu; Guang Bin Yu; Xue Mei Wu; Chang Sheng Hu; Zhi Gang Qu; Jiang Hua Ge; Ming Chen

doi:10.4028/www.scientific.net/AMM.274.320

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 274Journal Bearing Rotor Speed Effect on Dynamics...

Journal Bearing Rotor Speed Effect on Dynamics Coefficients and Film Pressure

Abstract:

The dynamic coefficients and film pressure effect in rotor-bearing systems may lead to an unstable station. The mechanism of the dynamic coefficients and film pressure induced thermal instability in the rotor-bearing system has been studied. The journal bearing model is adopted for the derivation of analytical expressions. The results show that the rotor speed has some effect on bearing dynamic coefficients and film pressure.

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Periodical:

Applied Mechanics and Materials (Volume 274)

Pages:

320-323

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.274.320

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Online since:

January 2013

Authors:

Nai Wen Hu, Guang Bin Yu, Xue Mei Wu, Chang Sheng Hu, Zhi Gang Qu, Jiang Hua Ge, Ming Chen

Keywords:

Dynamics Coefficients, Journal Bearing, Maximum Film Pressure, Minimum Film Thickness, Rotor Speed

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