风浪中船舶操纵运动建模与仿真

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1、学位论文风浪中船舶操纵运动建模与仿真肖仲明指导教师洪碧光教授申请学位级别工学硕士专业名称交通信息工程及控制学位授予单位大连海事大学2007年3月英文摘要ModelingandSimulationofShipManoeuvringMotioninWindsandf物vesAbstractThisthesisdescribesasixdegreesof丘eedommathematicalmodeloftheshipmanoeuvringmotionb鹤edOilthehorizontalbodyaxessystem。whichwasdevelopedbyHamamotoin1993．t

2、hencarriesOu}asimulationresearchoffheshipmanoeuvringmotionwiththeUSeofMATLABtoprogramandplot，andanSIMULINKintegratedsoftwarepackagefordynamicsystemsimulation．Becauseoftimeurgent，mylevellimitedandencountereingthedifficultieswhenearringoutthesimulationresearchoftheshipmanoeuvringmotion，SOthisthe

3、sisisjustsuccessfulinasimulatingtheturningmotionaboutthefourdegreesoffreedommodel，finallyanalysesthesafetyoftheshipturningmotioninwindsandwaves．Whenestablishingthemathematicalmodel，thefollowingfactorshavebeenconsidered：theforcesandmomentsactedonship’Shull，propeller,rudderandinteraction,fullyta

4、kingthecouplemotionofMMGship’Smotiononwatersurfacewiththreedegreesoffreedom，rollingmotion，pitchingmotionandheavingmotion，andconsideringtheinterferencef0“髂andmomenmofwindsandwaves，andcombiningship’Smaneuveringandseakeepinginwindsandwaves．，Whenearringoutthesimulationresearchoftheshipmanoeuvringm

5、otion，thisthesisjustsimulatestheturningmotionaboutthefourdegreesoffreedommodel．Theresultsshowthismodelhasaagreementwithactualrequest,analysingtheresultsindifferentconditionsasfollows：Whentheshipturningmotioninwindsandwaves，thecoupledactionsofwindsandwaveshaveagreatimpactonturningtrajectoryandr

6、ollingangle，namelytherequ',tsitewaterareainturningaroundwiththeredderandthemaximalrollingangle．Theresultsshowthatthegreaterthewindsandwavesarc，thegreatertheinfluenceis；thewinds，wavesfromdifferentdirectioncausedifferentinfluentionaboutturningmotion，the蔓苎塑蔓followingwind(wave)，leftfightbeamwind(w

7、avOhasthegreatestinfluenceonturningtrajectoryabouttheshipfightturningmotion；forthesameship，thesmallertransversestabilityaltitudeis，thebiggerthemaximalrollingangleis；theinitialrelativewavepositionalsohaveaninfluenceontheshiprightturningm