Design and performance analysis of water-lubricated tilting pad thrust bearing

LIANG Xing-xin; YAN Xin-ping; LIU Zheng-lin; OUYANG Wu; JIN Yong; FU Yi-feng

Volume 17 Issue 4

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LIANG Xing-xin, YAN Xin-ping, LIU Zheng-lin, OUYANG Wu, JIN Yong, FU Yi-feng. Design and performance analysis of water-lubricated tilting pad thrust bearing[J]. Journal of Traffic and Transportation Engineering, 2017, 17(4): 89-97.

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LIANG Xing-xin, YAN Xin-ping, LIU Zheng-lin, OUYANG Wu, JIN Yong, FU Yi-feng. Design and performance analysis of water-lubricated tilting pad thrust bearing[J]. Journal of Traffic and Transportation Engineering, 2017, 17(4): 89-97.

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Design and performance analysis of water-lubricated tilting pad thrust bearing

1.
School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, Hubei, China
2.
National Engineering Research Center for Water Transport Safety, Wuhan University of Technology, Wuhan 430063, Hubei, China
3.
Key Laboratory of Ministry of Transport for Marine Power Engineering Technology, Wuhan University of Technology, Wuhan 430063, Hubei, China
4.
School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney 2052, NSW, Australia

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Author Bio:
LIANG Xing-xin(1985-), male, doctoral student, +86-27-51239638, xingxin@whut.edu.cn

YAN Xin-ping(1959-), male, professor, PhD, +86-27-86552866, xpyan@whut.edu.cn
Received Date: 2017-02-20
Publish Date: 2017-08-25

Abstract

Abstract

Aiming at the demand of shaft-less rim-driven thruster for high-load capacity, long-life and low-noise water lubricated thrust bearing, a step type rubber cushion-supported and waterlubricated tilting pad thrust bearing was designed. By applying the fluid-solid two-way direct coupling analysis method, the performance calculation model of bearing was established, and the influences of base rubber cushion thickness, step rubber cushion thickness, step rubber cushion thickness ratio, step width ratio and thrust pad surface material on the axial displacement of thrust disc, maximum water film pressure and water film thickness were studied. Analysis result shows that when the load is constant, both the axial displacement of thrust disc and the maximumstress of rubber pad are proportional to the rubber cushion's thickness and the step rubber cushion's width ratio. When the thickness ratio changes from 2/2 to 3/6, the maximum water film pressure increases from 1.10 MPa to 1.32 MPa, the mean film thickness increases from 9.4 μm to 14.0 μm, and the increase ratios are 20.00% and 48.94%, respectively. The mean film thickness increases with the increase of the maximum water film pressure. When the step rubber cushion's thickness ratio equals 2/4 and the step width ratio is 16/20-20/16, the overall performance of the bearing is ideal. The increase of elastic modulus of thrust pad surface material is beneficial to improve the lubrication performance of the bearing, and the optimum step rubber cushion's width ratio increases accordingly.
- ship engineering,
- shaftless rim-driven propulsor,
- water-lubricated tilting pad,
- thrust bearing,
- step type rubber cushion,
- fluid-solid coupling

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References(27)

References

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