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Technical Briefs

Experimental Research on Film Pressure Distribution of Water-Lubricated Rubber Bearing With Multiaxial Grooves

[+] Author and Article Information
Nan Wang

e-mail: heroyoyu@126.com

Xiaoyang Yuan

Theory of Lubrication and Bearing Institute,
College of Mechanical Engineering,
Xi'an Jiaotong University,
Xi'an 710049, China

1Corresponding author.

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received August 30, 2012; final manuscript received February 27, 2013; published online June 3, 2013. Assoc. Editor: Bart van Esch.

J. Fluids Eng 135(8), 084501 (Jun 03, 2013) (6 pages) Paper No: FE-12-1416; doi: 10.1115/1.4024147 History: Received August 30, 2012; Revised February 27, 2013

In order to obtain the entire continuous circumferential film pressure distribution of a water-lubricated rubber bearing with multiaxial grooves, and further to study the bearing properties, an experimental research was conducted. The wireless measurement scheme was proposed, which can make the measurement process simple, convenient, and accurate. The unique design of the shaft and the installation methods for the pressure sensors are described. The time-domain averaging (TDA) algorithm was presented to suppress the random noises of the film pressure signal. By contrastive analysis on experimental results, some bearing properties, and working mechanism have been found and demonstrated.

FIGURES IN THIS ARTICLE
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Copyright © 2013 by ASME
Topics: Pressure , Rubber , Bearings , Water , Stress
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Figures

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Fig. 1

Test rig of water-lubricated rubber bearing: 1-wireless data acquisition transmitter, 2 -electromagnetic loading device, 3-installation hole of pressure sensor, 4-shaft, 5/10-water inlet/outlet, 6-copper sleeve of shaft, 7-bearing sleeve, 8-rubber bearing bush, 9-bearing support, 11-external shaft sleeve, 12-static pressure sensor, 13-shaft coupling, 14-motor

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Fig. 2

Radial cross-section drawing of rubber bearings with eight-axial grooves: (a) bearing with flat staves and (b) bearing with concave staves

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Fig. 3

Structure chart of shaft: R1–R6-radial flow guiding hole (pressure measurement point); A1–A6-axial flow guiding hole (installation hole of pressure sensor)

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Fig. 4

Layout of sensors for rubber bearing with concave staves

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Fig. 5

Wireless measurement scheme

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Fig. 6

Film pressure distribution and shaft center trajectory: (a) film pressure distribution, linear speed of shaft, 2.512 m/s and (b) shaft center trajectory

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Fig. 7

Film pressure distribution and shaft center trajectory: (a) film pressure distribution, linear speed of shaft, 3.768 m/s and (b) shaft center trajectory

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Fig. 8

Film pressure distribution: (a) load, 3188 N and (b) load, 4250 N

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Fig. 9

Film pressure distribution and shaft center trajectory: (a) film pressure distribution, linear speed of shaft, 2.512 m/s and (b) shaft center trajectory

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