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A new rubber/UHMWPE alloy for water-lubricated sternbearings

A new rubber/UHMWPE alloy for water-lubricated sternbearings
A new rubber/UHMWPE alloy for water-lubricated sternbearings
A new polymer alloy has been developed by blending powder of UHMWPE and graphite into nitrile rubber for marine stern tube bearings. It has good self-lubrication performance, which decreases the friction coefficient under low speed conditions and the critical speed at which bearing vibration and noise occur. Experimental investigations have been completed to examine its physical properties, integrated bearing friction as well as dynamic characteristics of the system in vibration and noise environments. The results show that mechanical and physical properties of new alloy meet the requirements of ship standard CB/ T769-2008. Stick-slip occurs at the critical speed of 0.27m/s. The friction coefficient is only about 50% of the restricted value in USA military specification MIL-DTL-17901C (SH) (2005) at or less than the speed of 0.18m/s, and reached a minimum value at the speed of 0.54m/s. The permissible maximum value of local projected pressure is 0.7MPa. The experimental results have confirmed the excellent low-speed performance and comprehensive function of the new Rubber/UHMWPE alloy which may be a good type of water-lubricated materials for marine stem tube bearings.
rubber/UHMWPE alloy, water-lubricated stern bearings, frictional property, bearing noise
0043-1648
257-261
Qin, Hong-ling
60d327a5-96a7-4bc6-b6c9-b060300e0016
Zhou, Xin-cong
6b626936-5beb-4e03-ad6b-8570b6e5ec68
Zhao, Xin-ze
9df2235a-8e6f-47e7-b75d-56c5f489c7b7
Xing, Jing-tang
d4fe7ae0-2668-422a-8d89-9e66527835ce
Yan, Zhi-ming
af04bcc0-c973-4c4f-9787-6dab54997cde
Qin, Hong-ling
60d327a5-96a7-4bc6-b6c9-b060300e0016
Zhou, Xin-cong
6b626936-5beb-4e03-ad6b-8570b6e5ec68
Zhao, Xin-ze
9df2235a-8e6f-47e7-b75d-56c5f489c7b7
Xing, Jing-tang
d4fe7ae0-2668-422a-8d89-9e66527835ce
Yan, Zhi-ming
af04bcc0-c973-4c4f-9787-6dab54997cde

Qin, Hong-ling, Zhou, Xin-cong, Zhao, Xin-ze, Xing, Jing-tang and Yan, Zhi-ming (2015) A new rubber/UHMWPE alloy for water-lubricated sternbearings. Wear, 328-329, 257-261. (doi:10.1016/j.wear.2015.02.016).

Record type: Article

Abstract

A new polymer alloy has been developed by blending powder of UHMWPE and graphite into nitrile rubber for marine stern tube bearings. It has good self-lubrication performance, which decreases the friction coefficient under low speed conditions and the critical speed at which bearing vibration and noise occur. Experimental investigations have been completed to examine its physical properties, integrated bearing friction as well as dynamic characteristics of the system in vibration and noise environments. The results show that mechanical and physical properties of new alloy meet the requirements of ship standard CB/ T769-2008. Stick-slip occurs at the critical speed of 0.27m/s. The friction coefficient is only about 50% of the restricted value in USA military specification MIL-DTL-17901C (SH) (2005) at or less than the speed of 0.18m/s, and reached a minimum value at the speed of 0.54m/s. The permissible maximum value of local projected pressure is 0.7MPa. The experimental results have confirmed the excellent low-speed performance and comprehensive function of the new Rubber/UHMWPE alloy which may be a good type of water-lubricated materials for marine stem tube bearings.

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More information

Submitted date: September 2014
Accepted/In Press date: 9 February 2015
e-pub ahead of print date: 17 February 2015
Published date: 15 April 2015
Keywords: rubber/UHMWPE alloy, water-lubricated stern bearings, frictional property, bearing noise
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 375132
URI: http://eprints.soton.ac.uk/id/eprint/375132
ISSN: 0043-1648
PURE UUID: c913a64b-921a-4763-be19-41b2445ec84d

Catalogue record

Date deposited: 23 Apr 2015 15:37
Last modified: 27 Apr 2022 07:27

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Contributors

Author: Hong-ling Qin
Author: Xin-cong Zhou
Author: Xin-ze Zhao
Author: Jing-tang Xing
Author: Zhi-ming Yan

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