Experimental Wear Modelling of Lifeboat Slipway Launches.

Thomas, B., Hadfield, M. and Austen, S., 2009. Experimental Wear Modelling of Lifeboat Slipway Launches. Tribology International, 42 (11-12), pp. 1706-1714.

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DOI: 10.1016/j.triboint.2009.04.043

Abstract

It is necessary to use an inclined slipway to launch lifeboats in locations where there is no natural harbour. Slipway stations consist of an initial roller section followed by an inclined keelway, the lifeboat is released from the top of the slipway and proceeds under its own weight into the water. Contact is between the lifeboat keel and a lined, greased keelway and this that determines the friction along the slipway. This paper describes a bench test methodology to investigate this contact. The selection of a modified TE57 reciprocating tribometer and design of a modified pin on plate arrangement is discussed. A test schedule for both the original nickel/chromium coated steel lining and the new low-friction jute fibre/phenolic resin composite lining is developed to accurately reflect real world conditions including environmental contamination such as seawater or wind-blown sand. Environmentally conscious lubricants including water and bio-greases are investigated and compared for their effects in reducing slipway panel friction and wear. Experimental data is collected to establish wear mechanisms, wear volumes and friction characteristics for a range of lubricants and environmental contaminants for the two most common lifeboat keelway lining materials. Implications of this research for future lifeboat slipway design are discussed.

Item Type:Article
ISSN:0301-679X
Additional Information:35th Leeds-Lyon Symposium on Tribology Special Issue
Subjects:Technology > Engineering > General Engineering
Group:School of Design, Engineering & Computing > Sustainable Design Research Centre
ID Code:14523
Deposited By:Dr Ben Thomas
Deposited On:13 May 2010 10:50
Last Modified:07 Mar 2013 15:28

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