Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters

NING Chang-xiong; YAN Xin-ping; OUYANG Wu

doi:10.19818/j.cnki.1671-1637.2021.02.012

Volume 21 Issue 2

Aug. 2021

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Article Navigation > Journal of Traffic and Transportation Engineering > 2021 > 21(2): 138-149

NING Chang-xiong, YAN Xin-ping, OUYANG Wu. Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters[J]. Journal of Traffic and Transportation Engineering, 2021, 21(2): 138-149. doi: 10.19818/j.cnki.1671-1637.2021.02.012

Citation:

NING Chang-xiong, YAN Xin-ping, OUYANG Wu. Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters[J]. Journal of Traffic and Transportation Engineering, 2021, 21(2): 138-149. doi: 10.19818/j.cnki.1671-1637.2021.02.012

Citation:

NING Chang-xiong, YAN Xin-ping, OUYANG Wu. Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters[J]. Journal of Traffic and Transportation Engineering, 2021, 21(2): 138-149. doi: 10.19818/j.cnki.1671-1637.2021.02.012

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Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters

doi: 10.19818/j.cnki.1671-1637.2021.02.012

NING Chang-xiong^{1, 2
,},
YAN Xin-ping^{1, 2, 3
,},
OUYANG Wu^{1, 2, 3
,
,}

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 Marine Power Engineering and Technology, Wuhan University of Technology, Wuhan 430063, Hubei, China

Funds:

National Key Research and Development Program of China 2018YFE0197600

More Information

Author Bio:
NING Chang-xiong(1996-), male, doctoral student, ning_cx@whut.edu.cn

YAN Xin-ping(1959-), male, professor, academician of Chinese Academy of Engineering, PhD, xpyan@whut.edu.cn
Corresponding author: OUYANG Wu(1987-), male, professor, PhD, ouyangw@whut.edu.cn
Received Date: 2020-11-27
Publish Date: 2021-04-01

Abstract

Abstract

To study the load-sharing characteristics of water-lubricated thrust bearings supported by rubber pads for rim-driven thrusters (RDT), a test method for the load-sharing characteristics of thrust bearings was proposed. On a multifunctional vertical water-lubricated test rig, water-lubricated thrust bearings supported by rubber pads for RDT with an inner diameter of 124 mm and an outer diameter of 196 mm were used as test objects. A section of the bearing average radius was selected on the disk surface, where the miniature pressure and temperature sensors were symmetrically arranged rotated with the shaft. The full pad water film pressure distribution and thrust disk temperature were obtained by using the wireless telemetry technology. By presetting the pad height difference and the thrust disk static tilt to simulate the situation of eccentric load, the influence rules of load and speed changes on the water film pressure distribution, friction coefficient, and thrust disk temperature were studied. Research result shows that the load sharing effect of elastic support changes with the change of working conditions. When the rotation speed is constant, the increase of load increases the deformation of rubber pads of each pad, thereby enhancing the effect of load sharing. The tilt degree of thrust disk increases with an increase of the rotation speed, which exacerbates the uneven load of pad. In the design of load sharing of a rubber elastic supported tilting pad structure for RDT, not only the manufacturing and installation factors of uneven thrust disk and pad, but also the speed and load of bearing should be considered. According to the relationship between the pressure distributions of each bearing pad and the working condition, the bearing's contact load ratio increases when the rotation speed is 100 r·min^-1 and the load is 0.35 MPa. Therefore, the water film pressure test provides a new way to distinguish the bearing lubrication state. 1 tab, 16 figs, 31 refs.

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References(31)

References

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Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters

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Load-sharing characteristics of water-lubricated rubber elastic supported tilting-pad thrust bearing for rim-driven thrusters

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