hxn5型内燃机车动力学性能分析

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1、西南交通大学硕士研究生学位论文第1I页AbstractByadoptingvirtualtestingtechnologyoflocomotive’Sdynamicperformancethattakemulti．bodysystemasthecore，dynamicsimulationCanpromoteproductdesignoptimization，acceleratenewproduct’Sdevelopmentprocessandreducedevelopmentcostgreatly．Therefore，analyzingandst

2、udyingthedynamicperformanceofnew-developedlocomotivebysimulationmodelinghasimportantsignificanceforoptimizingdesign．H酗5diesellocomotiveisanewgenerationofhigh-powerACtransmissiondiesellocomotivemadebyCSR．WhichbogieisanimproveddesignbasedonthebogieoftheNJ2diesellocomotiveforQin

3、ghai—TibetrailwayimportedfromAmericanGEcompanyin2006．Inordertoevaluatethislocomotive’Sdynamicperformance，somedynamicperformanceindexesareresearchedandappraisedsuchasthelocomotive’Srunningstability,runningcomfortonstraightline，curvingperformance，axleloadtransferandSOonbyusingt

4、heSIMPACKdynamicanalysissoftwaretosetlocomotivemulti-bodydynamicmodelinthispaper．Thecomputedresultsofsimulationshowthat：1)thenon—linercriticalspeedofthelocomotiveCanbarelysatisfythedesignrequiredspeed120km／hintheory．Astheusingofguideframeforaxle．boxguidance，ontractionandbrake

5、condition，thelateralvibrationofwheelsetexistsastablelimitcyclewithinthescopeof4mmofprimarylateralstop．2)Thelocomotive’SrunningcomfortiSconditionaluponactualtracks．OnmeAAR5tracksandinferiortracks．the10comotiveCanrunatthespeedof40km／h-140km／h，withthelateralrideindexandaccelerat

6、ionaregood，andthelateralwheelsetforceiSlessthanthelimitvalue．OntheAAR5tracks，thelocomotive’Sverticalrideindexisgoodatthespeedof40km／h-120km／h，anditsverticalaccelerationisgoodatthespeedof40km／h-140krn／h．Ontheinferiortracks，thelocomotive’Sverticalrideindexisgoodunderthespeedof6

7、0km／h，itsverticalrideindexandaccelerationiSwithintheacceptablelimitunderthespeedoflOOkrn／h．3)ThelocomotiveCannegotiatesafelythecurveof125mradius．4)Whenthelocomotivenegotiatesthecurveof300mand800mradius，alldynamicindexesarelessthanthelimitvalue．Undertheworkingcondition，whenthe

8、radiusiS300m，maximumlateralwheelsetforceCanreach88．07kN．5)Thelocomot