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ID:31987910
大小:2.65 MB
页数:78页
时间:2019-01-30
《绞吸式挖泥船吸扬系统动态匹配优化与评价方法研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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
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