船舶柴油機渦輪增壓器配合及計算機仿真研究.pdf

1、武漢理工大學碩士學位論文船舶柴油機渦輪增壓器配合及計算機仿真研究姓名：申小明申請學位級別：碩士專業(yè)：輪機工程指導教師：周瑞平20080501武漢理工大學碩士學位論文AbstractWiththecontinuousdevelopmentofcomputertechnique，computersimulationhasbeenapowerfultooltotheturbochargedieselengineoperationalperfo

2、rmanceresearchTheturboehargedieseleagirteisatypicalcomplexpowerplantofmultisysteIIlandmulti1evel，therealeanumberoffactorsinfluencingtheturboehargesystemofthedieselengineinoperation，manyfactorsfileinterrelatedandinteracti

3、onalInthispaperthemarinedieselengine8L23／30is鶴thesimulationobjecttoexploritsoperationalperformancealargeamountofsimulationandealeaulationhasbeendoneforthethermodynamiecycleFirstlyitexpatiatesthebasicperformancesofaircomp

4、ressorandturbineandintroducesthenumericalshowofaircompressormapandturbinemapOnthemethodofgridandanalysis，thenmakesaMathematicalModelforthematchingbetweenturbochargeranddieselSecondlybasedontheAVLBOOSTwedividetheturbochar

5、gedieselengineintofiveindependentsubsystemsincludingthecylinder，theexhaustduct，theintakeduct，theexhaustgasturbochargerandthecooler，combinedwiththeactualprocessofthefourstrokedieselmainengine，useidealsimulationalgorithmab

6、outitsmathematicalmodelincludingthecombustionmodel，theintakeandexhaustmodel，theexhaustduetmodel，theexhaustgasturbochargermodel，thecoolermodelandSOon，repeatedlydebuggingandthengainthereasonablycorrectcompletemachinesimula

7、tionmodelFinallyapplyingthecompletemachinesimulationmodel，largelysimulatingandcalculatingitsthermodynamiccyclefromthepartofthefaultswhichimpactingtheturbochargesystemoperationincludingthecoolerairsideblocking，thecoolerco

8、olingcapacityworsen，theturbochargeefficiency，injectionsystemfaultleadingtaisetheexhausttemperature，theintakevalvesblocking，theexhaustvalvesblocking，theturbineexhaustresistance，Selltemperaturedescending，calculatingandanal