绞吸式挖泥船吸扬系统动态匹配优化与评价方法研究

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1、武汉理工大学硕士学位论文methodofmulti-levelfuzzydecision-making,aseriesofindexessuchassmashdegreeofsedimentparticles，sandleakageratiointhesuctionpipeline,energyefficiencyofdieselengine,slurrypumpcavitationlimitvalue，transportationpipelineblockageriskindicatorandpowerutilityratio，isconstr

2、uctedtoformtheevaluationmechanismofsuction-liftingsystem．Thesystemwithainsightintodredgingmechanism,whichprovidessolidevidenceforsafe,accurateandenvironment-friendlydredging,canhelpengineerstomakeascientificandquantitativeevaluationonspecificprojects．Thecontentofeachchapterca

3、nbegeneralizedasfollows．Theresearchbackground，purposeandsignificanceisdescribedinthefirstchapter,inwhichanoverviewofoperatingprocedures，configurationandapplicationareas，researchresultsandfocusesofcuttersuctiondredgerathomeandabroadisintroducedandthecontentandresearchworkofthe

4、dissertationisbriefed．Thesecondchaptergivesadetaileddescriptionofthepropertiesofsandandthelawofsolid·-liquidtwo--phaseflow,presentsandanalyzesthesettlingvelocityofsand，whicheffectsmatchingcharacteristicsofthewholesuction—liftingsystemasthekeyparameter．Thischapterhaslaidadetai

5、ledtheoreticalbasisforthefollowingin-depthstudyoftheresearch．Asonebodypart,chapter3establishesseveralmostcriticalmatchingoptimization·‘modelsofthesuction-liftingsystembased-onthedynamiccharacteristicsofdredgingequipments，includingthematchingmodelbetweensandcuttingandcutterwor

6、kingparameters，themodelbetweencutteranditselectricdrivesystem，theonebetweendieselengineandslurrypumpunitandthetransportationpipeline，whichconstitutetheanalysismodelofsuction-liftingsystemmatchingcharacteristics．Chapter4，theotherbodypart，suggeststhemulti—leveldynamicprogrammin

7、gmethodforfuzzydecisiononmatchingoptimizationofsuction—liftingsystemconsideringcomplexandvolatiledredgingconditions．Intermsofthethreeaspectsasslurryformationprocess，powersupplyofdieselengineandenergylosscharacteristicsoftransportationpipeline,matchingindexesevaluationsystemof

8、suction-liftingsystemisestablishedinthischapter．Inpracticaldredgingp