简介:Intheconceptualstagethefunctiondesignprocessisrealizedbythecomputeraidedapplication.Aftersurveyingonthefunctionspecificationmethodsandthefunctionmodeling,acomputeraidedfunctiondesignenvironmentisanalyzed.Subsequentlybasedonamodulelibraryandprinciplecatalogue,asolutionfindingprocessasapartofconceptualdesignisproposedforacreativedesign.Inaddition,asearchalgorithmtofindthesolutionofadaptablefunctionstructureisalsodiscussed.Theconceptsproposedinthispapercansupportthesubsequentdesignstages,especiallysimulationforcheckingthefunctionstructuredefects.
简介:AnovelnumericalmodelbasedontheimageGreenfunctionandfirst-orderTaylorexpansionboundaryelementmethod(TEBEM),whichcanimprovetheaccuracyofthehydrodynamicsimulationforthenon-smoothbody,wasdevelopedtocalculatethesidewalleffectsonfirst-ordermotionresponsesandsecond-orderdriftloadsuponoffshorestructuresinthewavetank.Thismodelwasconfirmedbycomparingittotheresultsfromexperimentsonhydrodynamiccoefficients,namelythefirst-ordermotionresponseandsecond-orderdriftloaduponahemisphere,prolatespheroid,andbox-shapedbargeinthewavetank.Then,thehydrodynamicsoftheKVLCC2modelwerealsocalculatedintwowavetankswithdifferentwidths.Itwasconcludedthatthismodelcanpredictthehydrodynamicsforoffshorestructureseffectively,andthesidewallhasasignificantimpactonthefirstorderquantitiesandsecond-orderdriftloads,whichsatisfiedtheresonantrule.