基于最大舵阻力减额的扭曲舵设计及性能分析.pdf

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1、第18卷第3期船舶力学Vo1．18No．32014年3月JournalofShipMechanicsMar．2014ArticleID：1007—7294(2014)03—0238—10DesignandPerformanceAnalysisofTwistedRudderbasedontheMaximumReductionofRudderResistanceWANGChao1-27HEMiao。，WANGGuo-liang，GUOChun—yu(1．CollegeofShipbuildingEngineering，Harbi

2、nEngineeringUniversity，Harbin150001，China；2．CollegeofNavalArchitectureandOceanEngineering，NavalUniversityofEngineering，Wuhan430033，China；3．ChinaShipDevelopmentandDesignCenter，Wuhan430033，China)Abstract：Thepurposeofimprovingtheeficiencyofpropulsionsystemcanbeachieve

3、dthroughlay—ingatwistedrudder．Inordertogettheinflowattackanglesofeveryruddersection．thepanelmethodisusedtocalculatetheinfluenceofthepropellerontherudder．Accordingt0theinflowattackan-gles，thesectionsaretwistedtogetthemaximumadditionalthrust．Aniterativemethodisusedfo

4、rthecalculationofthehydrodynamicperformancebetweenthepropellerandtheafttwistedrudderwithconsideringtheinteractionbetweenthem，andtheresultsshowthatthetwistedruddercanI℃ducethetotalresistancebyreducingthepressuredrag，improvethehydrodynamicperformanceofrudderandraiset

5、heeficiencyofthepropeller—ruddersystem．Atthesametime。someamendmentwasmadeinthedesignoftwistedrudder．Throughcomparingthehydrodynamicperformancebetweenthetwotypesoftwistedrudder，theresultsshowthattheamendmentrudderhasabettermatchingcharac—teristicwithinflow，decreases

6、theswingamplitudeandsolvestheproblemcausedbythelargeampli—tudevibrati0n0fruddPrstinT1Keywords：twistedrudder；propeHer；panelmethod；maximumreductionofrudderresistance；hydrodynamicperformanceCLCnumber：U661．3U664．36Documentcode：Adoi：10．3969~．issn．1007-7294．2014．03．004Du

7、etotherudderloeatesintheinducedvelocityfieldofthepropeller．boththeattackan—gleandincomingflowspeedontheruddersectionarechangingalongthespanwiseandchord—wise．Buttheconventionalrudderisdesignedwithouttakingthisintoaccount．Thetwistedrud—derbeginstoattractattentionofre

8、searchersfromtheearlyoflastcentury[”．Asearlyasinthe1930s，Turinpresentedtheconceptionoftwistedrudder．Since1930s．penplehavebeenen—gagedjntheoretica