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ID:36477812
大小:1.49 MB
页数:61页
时间:2019-05-11
《低温液体运输半挂车整体结构失效分析研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、南昌大学硕士学位论文低温液体运输半挂车整体结构失效分析研究姓名:谭昳申请学位级别:硕士专业:化工过程机械指导教师:谭志洪20071201AbstractAdvocatingandpromotingtheuseofsemi-trailerplaysapositiveroleinimprovingtheseriousidlelogisticsresourcesandthepracticalcontradictionsofinefficienttransportinourcountry.China'ssemi-
2、lafailerproductionhistoryhasbeenfordecadesandithasinitiallyformedindustrialization,thereageoveronehundredmanufacturerswithanannualoutputofseveraltensofthousandsofperyear.Duetohistoricalanddevelopmentoftechnicalreasons,itisinadequateinresearching,designing
3、andmanufacturingthesemi-trailerwiththepressuretank.Withthedevelopmentofeconomicconstruction,theaccidentsmadebysemi-trailerhappenedfrequently,butifthesemi—trailerwiththepressuretankoccurredinvalidationdestruction,theconsequenceswillbeveryserious.Inthestruc
4、turaldesignofthetankoftraditionalsemi-trailer,weoftenadaptsimilarstaticloadconditionsaSthedesigningcondition,forexampleweusecalculationformulaofGBl50tocountthethicknessofpressuretanksetc.Thisalgorithmoverlookeddynamicloads仃essonthetankaswell船otherstructur
5、alstressimpact.Thisisquimunreasonable.HowtomakeafailureanalysisinthecomplexdynamicloadcasesandputforwardamoIescientificandrationaldesigningplan,ANSYShasprovidedUSwithanexcellentmeans.Inthis弘Iper,weIISetheCADfunctionsoffiniteelementanalysissoftwareANSYStoe
6、stablishasemi-trailercryogenicliquidtransportwithinthetankshellandgeometricmodel,anddivideitintogrids.AccordingtoPeople。sRepublicofChinaMachineryIndustryStandard’’CryogenicLiquidStorageandtheUseofSafetyEquipmentRules”,atthecircumstanceofhunchingthetank,br
7、aking,sharpturningandupanddown,weadaptthewayofequivalemstaticloadonthetanktocounttheshockof血cmediatothetank.BytheanalysisofthefiniteelementanalysissoftwareANSYS,weaccesstothestresssituationofthetankatvariousmovementconditioh.AccordingtostressclaSsificatio
8、nrulesofJB4732—95andthestructuralcharacteristicsofsemi-trailertank,wehavenladethecorrespondingevaluationonitsstrength,inordertodetemtinethestructuraldesignofthestoragetankreasonable,meanwhileweⅡAbstraethavemodifiedt
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