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Kumar, I. N. Niranjan
- Design of a Quadramaran Vessel
Authors
Source
International Journal of Innovative Research and Development, Vol 4, No 7Sp (2015), Pagination:Abstract
A new innovationin the world of multi-hull vessels has been proposed, by arranging the fourspindlesubmarine typeofhulls(A QUADRAMARAN)forhigherstabilizationandintroducingnewstructuralsynthesis phenomenonwhichisacompletedeviationfromexistingclassificationsocietyapproachesonstructuraldesign.Astructuralsynthesisapproach/methodroutinelyusedtodesign&buildinternallypressurizedfilamentaryvesselsismodifiedforapplicationontoaradicallydifferentdesignofexternallypressurizedsteelhulls.Inthedesignprocessbeginningwithshellequilibrium,choosinggeodesicsasreinforcementdirections,usingNettingtheoryandintegratingresultingODEs,wearriveatasolutionasdemandedoptimumshaperatherthananalyzingpre-determinedshapesofhullbodyplan.Thatazerohoopstresscaseofdoublycurvedrotationallysymmetricpressureshellsissameincompositeandmetallicdesign,thisapproachisadoptedforsteel.Thisconsiderationhasleadtoacorrugated/bellow/unduloidshape,morepointedontheoutsidethantheinside.Veryrigidstructureresultedasexpectedthroughthecompositeroute.FEanalysisprovesstrengthandstabilityoftheresultingform.
A new innovationin the world of multi-hull vessels has been proposed, by arranging the fourspindlesubmarine typeofhulls(A QUADRAMARAN)forhigherstabilizationandintroducingnewstructuralsynthesis phenomenonwhichisacompletedeviationfromexistingclassificationsocietyapproachesonstructuraldesign.Astructuralsynthesisapproach/methodroutinelyusedtodesign&buildinternallypressurizedfilamentaryvesselsismodifiedforapplicationontoaradicallydifferentdesignofexternallypressurizedsteelhulls.Inthedesignprocessbeginningwithshellequilibrium,choosinggeodesicsasreinforcementdirections,usingNettingtheoryandintegratingresultingODEs,wearriveatasolutionasdemandedoptimumshaperatherthananalyzingpre-determinedshapesofhullbodyplan.Thatazerohoopstresscaseofdoublycurvedrotationallysymmetricpressureshellsissameincompositeandmetallicdesign,thisapproachisadoptedforsteel.Thisconsiderationhasleadtoacorrugated/bellow/unduloidshape,morepointedontheoutsidethantheinside.Veryrigidstructureresultedasexpectedthroughthecompositeroute.FEanalysisprovesstrengthandstabilityoftheresultingform.
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- Vacuum Infusion Process for Composite Vessel Construction
Authors
Source
International Journal of Innovative Research and Development, Vol 4, No 7Sp (2015), Pagination:Abstract
This study covers the construction process of boats from reinforced fibres with composites resin by using vacuum infusion and hand lay-up method. Based on the findings, vacuum infusion process gives the impression to produce higher results of composite flexural properties compared to the composites manufactured by hand lay-up method. Further, the vacuum infusion method used in this study offers the clear benefits of vacuum infusion method over hand lay-up process, which provides better comparison ratio between fibres to resin which resulting in stronger and lighter laminates. The existing composite materials can provide higher strength, low-cost alternative which is also environmentally friendly, when manufactured using vacuum infusion process.
Keywords
Vacuum infusion, hand lay-up, composite, gelcoat, contact moulding, exotherm, fibre, resinFull Text