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<title>UTas ePrints - The effect of slamming and whipping on the fatigue life of a high-speed catamaran</title>
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<meta content="Thomas, Giles A." name="eprints.creators_name" />
<meta content="Davis, Michael R." name="eprints.creators_name" />
<meta content="Holloway, Damien S." name="eprints.creators_name" />
<meta content="Roberts, Timothy J." name="eprints.creators_name" />
<meta content="giles@amc.edu.au" name="eprints.creators_id" />
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<meta content="The effect of slamming and whipping on the fatigue life of a high-speed catamaran" name="eprints.title" />
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<meta content="In order to optimise the structural design of lightweight high-speed vessels knowledge is required of the effect of sea loads on their structures, with respect to both ultimate strength and fatigue life. This paper reports on an investigation into the influence of slamming and whipping on the fatigue life of a large high-speed catamaran. Full-scale measurements of slam events were conducted on a 98m Incat catamaran to investigate its slamming behaviour in a variety of sea conditions. The full scale results were then used to determine the influence of the presence of slam events on fatigue life. In addition the effects of significant wave height, slam occurrence rates, slam peak stresses, whipping behaviour on fatigue life were examined. The fatigue life was found to reduce significantly with the presence of slam events. Therefore a reduction in slamming may prolong the fatigue life of a vessel markedly. The fatigue life was found to reduce significantly as wave height increases, as slam rate increases and slam peak stress increases. However small slam events were found to have little or no influence on fatigue life. Whipping behaviour, in particular decay coefficient, may also strongly influence fatigue life." name="eprints.abstract" />
<meta content="2006" name="eprints.date" />
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<meta content="Australian Journal of Mechanical Engineering" name="eprints.publication" />
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<meta content="British Standards, Structural Use of Aluminium, BS 8118, Part 1, Code of Practice for Design, 1992: Part 2, Specification for Materials, Workmanship and Protection, 1992.
Clarke, J.D., Measurements of Hull Stresses in Two Frigates during a Severe Weather Trial, Transactions RINA, Vol. 124, 1982.
Clarke, J.D., Prediction of Fatigue Cracking in Warship Hulls, Third International Symposium on Practical Design of Ships and Mobile Units, 1987.
Collins, I.A., Failure of Materials in Mechanical Design, John Wiley & Sons, 1993.
Fredriksen, A., Fatigue AspectsofHighSpeed Craft, FAST '97, 1997.
Friis-Hansen, P., On Combination of Slamming and Wave-Induced Responses, Journal of Ship Research, Vol. 38, No.2, 1994.
Friis-Hansen, P,Jensen, J.J., Pedersen PT., LongTerm Springing and Whipping Stresses in High Speed Vessels, FAST'95, 1995.
Hermundstad, a.A., Wu, M.,Moan, T.,Hydroelastic Response Analysis of a High Speed Monohull, International Conference on Hydroelasticity in Marine Technology 1994.
High Speed Vessels Committee, 2000, Structural Design of High Speed Vessels, 14th International Ship and Offshore Structures Congress, 2000.
Humphrey, R.,Nybe, T.,Det Norske Veritas -Direct Calculation Methods for High Speed, Light Craft and Naval Surface Craft, Pacific 2002, 2002.
Kannari, P., Klinge, P., Rintala,S., Karppinen, T., Mikkola, T.P.]., Rantanen, A., Comparison of Simulated Global Stresses with Full-Scale Measurements on an Aluminium Fast Patrol Vessel, Hydroelasticity in Marine Technology, 1998.
Morris, I.A.,AThreeDimensionalStructuralAnalysis of a Large Wave Piercing Catamaran Design, IMAS 91 High Speed Marine Transportation, 1991.
Olkinuora, P, Knuuttila, E., Hakala, M.K., Rintala.S, Vuorio,J.,StructuralDesign of an Aluminium Missile Boat, FAST '91, 1991.
Sharp, M.L., Nordmark, G.E., Menzemer, C.C., Fatigue Design of Aluminium Components and Structures, McGraw-Hill, 1996.
Sumi, Y., Yamamoto, Y, Suzuki, M., The Effect of Whipping Stresses on Fatigue of a Fast Container Ship in Rough Seas, Naval Architecture and Ocean Engineering, Vol. 27, 1990.
Thomas, G., Davis, M.R., Holloway, D. S., Roberts, T.I., An Investigation into the Whipping of Large High-Speed Catamarans, HIPER '04,2004.
Thomas, G., Davis, M.R., Holloway, D. S., Watson, N.L., Roberts, T.J., The Slamming Response of a Large HighSpeed Wave-Piercer Catamaran, SNAME Marine Technology Journal, Vol. 40, No.2, 2003.
Thomas, G., Davis, M.R., Whelan, J., Roberts, T.J., Dynamic Response ofLarge HighSpeedCatamarans, FAST '01,2001.
Tongue, E., Fatigue Assessment of Aluminium Fast Craft, Third Forum on A1urniniurn Ships, Norway.1998." name="eprints.referencetext" />
<meta content="Thomas, Giles A. and Davis, Michael R. and Holloway, Damien S. and Roberts, Timothy J. (2006) The effect of slamming and whipping on the fatigue life of a high-speed catamaran. Australian Journal of Mechanical Engineering, 3 (2). pp. 165-174. ISSN 1448-4846" name="eprints.citation" />
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<meta content="Davis, Michael R." name="DC.creator" />
<meta content="Holloway, Damien S." name="DC.creator" />
<meta content="Roberts, Timothy J." name="DC.creator" />
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<meta content="In order to optimise the structural design of lightweight high-speed vessels knowledge is required of the effect of sea loads on their structures, with respect to both ultimate strength and fatigue life. This paper reports on an investigation into the influence of slamming and whipping on the fatigue life of a large high-speed catamaran. Full-scale measurements of slam events were conducted on a 98m Incat catamaran to investigate its slamming behaviour in a variety of sea conditions. The full scale results were then used to determine the influence of the presence of slam events on fatigue life. In addition the effects of significant wave height, slam occurrence rates, slam peak stresses, whipping behaviour on fatigue life were examined. The fatigue life was found to reduce significantly with the presence of slam events. Therefore a reduction in slamming may prolong the fatigue life of a vessel markedly. The fatigue life was found to reduce significantly as wave height increases, as slam rate increases and slam peak stress increases. However small slam events were found to have little or no influence on fatigue life. Whipping behaviour, in particular decay coefficient, may also strongly influence fatigue life." name="DC.description" />
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<h1 class="ep_tm_pagetitle">The effect of slamming and whipping on the fatigue life of a high-speed catamaran</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Thomas, Giles A.</span> and <span class="person_name">Davis, Michael R.</span> and <span class="person_name">Holloway, Damien S.</span> and <span class="person_name">Roberts, Timothy J.</span> (2006) <xhtml:em>The effect of slamming and whipping on the fatigue life of a high-speed catamaran.</xhtml:em> Australian Journal of Mechanical Engineering, 3 (2). pp. 165-174. ISSN 1448-4846</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a href="http://eprints.utas.edu.au/2481/1/slamming_and_whipping.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a></td><td valign="top"><a href="http://eprints.utas.edu.au/2481/1/slamming_and_whipping.pdf"><span class="ep_document_citation">PDF</span></a> - Full text restricted - Requires a PDF viewer<br />2524Kb</td><td><form method="get" accept-charset="utf-8" action="http://eprints.utas.edu.au/cgi/request_doc"><input value="3266" name="docid" accept-charset="utf-8" type="hidden" /><div class=""><input value="Request a copy" name="_action_null" class="ep_form_action_button" onclick="return EPJS_button_pushed( '_action_null' )" type="submit" /> </div></form></td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://www.engaust.com.au/transactions/pub_details.asp">http://www.engaust.com.au/transactions/pub_details.asp</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">In order to optimise the structural design of lightweight high-speed vessels knowledge is required of the effect of sea loads on their structures, with respect to both ultimate strength and fatigue life. This paper reports on an investigation into the influence of slamming and whipping on the fatigue life of a large high-speed catamaran. Full-scale measurements of slam events were conducted on a 98m Incat catamaran to investigate its slamming behaviour in a variety of sea conditions. The full scale results were then used to determine the influence of the presence of slam events on fatigue life. In addition the effects of significant wave height, slam occurrence rates, slam peak stresses, whipping behaviour on fatigue life were examined. The fatigue life was found to reduce significantly with the presence of slam events. Therefore a reduction in slamming may prolong the fatigue life of a vessel markedly. The fatigue life was found to reduce significantly as wave height increases, as slam rate increases and slam peak stress increases. However small slam events were found to have little or no influence on fatigue life. Whipping behaviour, in particular decay coefficient, may also strongly influence fatigue life.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Article</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/291202.html">290000 Engineering and Technology > 291200 Maritime Engineering > 291202 Ship and Platform Hydrodynamics</a><br /><a href="http://eprints.utas.edu.au/view/subjects/291203.html">290000 Engineering and Technology > 291200 Maritime Engineering > 291203 Ship and Platform Structures</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2481</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Giles Thomas</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">22 Nov 2007 10:03</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">04 Feb 2008 10:50</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2481;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=2481">item control page</a></p>
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