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1、X95687t碩士學(xué)位論文(2006屆)自動扶梯金屬剛架結(jié)構(gòu)的分析及其優(yōu)化TheAnalysisandOptimumDesignoftheEscalator’SMetalStructure研究生姓名指導(dǎo)教師姓名專業(yè)名稱研究方向論文提交日期程東霽樊琳CAD/CAE2006年4月英文提要自動扶梯金屬剛架結(jié)構(gòu)的分析及其優(yōu)化TheAnalysisandOptimumDesignoftheEscalator’SMetalStructureAbst
2、ractThemetalri2idframestructurebearsmostoftheweightoftheeSCalatorConsideringthesafetyfactors,enterprisestendtoselectexcessivelythebiggersafetymodulusinthestructuredesignNowmoreandmoreescalatorsarefixedtouseAsaresult,exce
3、ssivelybiggersafetymoduluscausesthewasteoftherollcdsteelThereforeitiSquitenecessarytooptimizetheesCalator’SmetalstructureInvirtueofANSYS80,thefiniteelementanalysissoftware,thethesishasmadeanalysisandoptimumdesignoftheesc
4、alator’SmetalrigidframestructureFirst,thegeometricalmodalandthemeshedgeometricalmodalarebuiltinANSYSTheresultofthestructureunderloadiSgotbystaticanalysisInallusiontothespecialtyofdeformation,itresolvesthemainfactorswhich
5、influencethedistortionofthemetalrigidframestructurewiththeoreticalanalysisBasedonreliableanalysisresultitputsforwardtheimprovementmethodsabomtheformandmaterialofthemetalrigidframestructureSecond,thethesisappliesprestress
6、edtechnqlogytotheoptimumworkoftheescalator’SmetalrigidframestructureTwomethodsarcchosenin0rd盱toputprestresson也emetalrigidframestructureThelastbutnotthe1eastitprovidestheoptimizationanalysisbyusingtheANSYS’Sadvancedstruct
7、ureanalysisfunctionThevolumeofstructureiSsetasanobjectivevariableandthesectionparametersaresetasdesignvariablesThemaxdeformationandthemaxstressareset船statevariablesItiSmadeclearthatthemethodofputtingonpre—stress1cadstole
8、SSstructuredistortionandbetterinteriorpressimprovementUnderthesarneweight,therigidframestructurewiththeUSeofprestresscanbereplacedbymaterialsofsmallersectionareasso也atsteeliSsavedInadditionbyintegratingtheresultsofoptimi
9、zationandthestandardsofsteelmatedalsitprovidesthemostsuitablesectionformThethesisputsforwarda11possibleimprovementprojectsforrigidframestructuresotha£thetheoreticalbasisisprovidedforenterprisestoireprovethestructureofesc
10、alatorThethesis,basedonformerstudyfruit,bringsforwardnewcreativeideasasthefollowing:1Forthefirsttimetheprestressedtechnologyisappliedtotheescalator’Srigidframestructure2WiththeUSeofANSYSparameterlanguageisdesignedtoanaly
11、zeandestablishmacroinescalator3ByusingtheadvancedfunctionofANSYS,thebestoptimumanalysisiSmadeandthebestsectionparametercomesoutKeywords:escalator;finiteelementanalysis;pre—stress;rigidframestructure;optimizationWrittenby
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