波浪對(duì)透空式三維結(jié)構(gòu)物的沖擊作用研究.pdf

1、大連理工大學(xué)博士學(xué)位論文波浪對(duì)透空式三維結(jié)構(gòu)物的沖擊作用研究姓名：丁兆強(qiáng)申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：港口、海岸及近海工程指導(dǎo)教師：任冰王永學(xué)20091211波浪對(duì)透空式三維結(jié)構(gòu)物的沖擊作用研究WaveImpactontheThreedimensionalOpenStructureAbstractWiththedevelopmentoftheoceanexploitationonTweentyonecentrurymoreandmoreope

2、nstructures，suchasoffshoreoilplatforms，detachedwharfsandopenstylewharfsetcarebuiltupindeepwaterHowever，becauseofunderdesignaltitudeofthepanel，thesettlementoftheseabedetc，whileencounteringtheabominableseaconditions，thewav

3、e—impactforcecausedbythewaveslammingwhenthewatercontactsthesubfaceofthestructurethreatenthestabilityandsafetyofthesuperstructuresThus，theforecastofwaveslammingloadsinthedesignofcoastalandoffshoreengineeringismoreandmorev

4、aluedandhasbecomeanimportantsubjectItissignificanttoresearchthecharacteristicsintheprocessofthewaveimpactdeeplyThispaperpresentstheexperimentalinvestigationoftheslammingonthethreedimensionalopenstructureinthesplashzone，a

5、ndalsothecontrastiveanalysisbythenumericalsimulationresultsFirstofall，theexperimentalinvestigationoftheslammingonthethree—dimensionalopenstructureinthesplashzoneisdevelopedThestatisticaldistributioncharacteristicsofthepe

6、rpendicularwaveimpactpressuresarecomparedwiththatoftheobliquewaveontheundersideoftheopenstructureTherelationbetweenwaveimpactforcesandtheparameterssuchastherelativewaveheight，therelativestructurewidthandtherelativecleara

7、nceofthestructureisalsodiscussedTheeffectofthewavedirection／3onthewaveimpactforcesontheundersideofthestructureiSdeterminedThespectralanalysisofunidirectionalirregularwaveslammingiSpresentedThedistributioncharacteristicso

8、fthezerothordermomentoftheperpendicularandobliquewaveimpactpressurespectrumalongthesubfaceofthestructurearegivenAndtheeffectofdifferentincidentwaveparameterssuchastherelativewaveheight，therelativestructurewidthandtherela

9、tiveclearanceonthenondimensionalzerothordermomentoftheimpactforcespectrumarediscussedTheexperientialexpressionsofthedimensionlesszerothordermomentoftheimpactforcespectrumfordifferentwaveincidentanglesaresummarizedAndalso

10、theempiricalexpressionoftheimpactforcesandzerothordermomentoftheimpactforcespectrumaregivenThen，thethree—dimensionalnumericalwavebasinbasedupontheVOFmethodiSestablishedVOFisusedfortracingthefreesurface，thegoverningequati