波浪状态下的螺旋桨水动力性能实验研究.pdf

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1、第16卷第9期船舶力学V01．16No．92012年9月JournalofShipMechanicsSep．2012ArticleID：1007—7294(2012)09—1005—11ExperimentalResearchonHydrodynamicCharacteristicsofPropellerinWavesGUOChun-yu，ZHA0Da-gang,WANGChao，CHANGXin(CollegeofShipbuildingEngineering，HarbinEngineeringUniversit

2、y，Harbin150001，China)Abstract：Inordertostudyhydrodynamicperformanceofpropellerinwaves，experimentsofacertainpropellerwerecarriedoutunderthesameregularwavesanddifferentdepthsofpropellershaftinopenwarerconditions．Theinfluenceofdepthsofpropellershaftonthrustcoeffi

3、cient，torquecoeffi—cientandefficieneyincalmwaterweremainlystudied．ThesteadyandunsteadycharacteristicsoftheDropellerinwayeswerestudiedasthedifferentdepthsofpropellershaft．Theair—ingestionandrun—awavphenomenonofpropellerandtheunsteadyperformanceofpropellerinwave

4、swerealsoanalyzed．Keywords：propulsiveperformance；depthofpropellershaft；propeller；wavesCI。Cnumber：U661．7Documentcode：A1IntroductionForashipsailinginwaves，comparedwithincalmwater，theresistanceincreasesandtheDropulsiveperformancedeclinesduetotheinfluenceofexterna

5、lenvironment．Asaresult，theactualspeedislowerthantheestimation．Totheperspectiveofperfonnancedesigntechnique，researchesaboutshippropulsionperformanceinwavesareverynecessary．Intact，whenashipsailinginaseriousseaconditionsorinballast，thepropellerwillcloseto，orevens

6、urpassthewatersurfacebecauseoftheheaveandthepitchofship．Soithastheair—ingestionandeventhe‘mnaway’phenomenon．Theresuhofthatisthedeclineofpropellerthrustandefficiency．Theworsearethehullvibrationandtheintenseproblemsofpropellerandshaftingfromtheinfluenceofwavesfo

7、rceandloadingfluctuantchangingofbladeswhichexitandentrywaterperiodically．Soinrecentyears，morecountriestakemuchmoreattentiontoshippropulsiveDerformanceinwaves．Manycountriespaycloseattentiontotherapidity，maneuverabilityandseakeepingofshipinwindwaves．Researchesof

8、changingregularityofthepropellerhydro“dynamicPerformanceareanimportantaspectofshiprapidityresearchinwaves．Whenashipswaysinstormywaves，therearesixadditionalhydrodynamicthrustandtorq