sq200zb4随车起重机伸缩臂的结构分析

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1、摘要本文致力于10吨级SQ200ZB4重型随车起重机的研发，主要针对其伸缩臂、转臂关键构件进行分析与计算。采用基于经验公式对SQ200ZB4随车起重机吊臂各工况危险截面的强度和刚度进行校核，验证其结构的安全性。通过PRO/E软件对伸缩臂进行实体建模，采用有限元分析ANSYSWorkbench软件对SQ200ZB4的5个使用工况下伸缩臂的静力学特性进行分析，生成其伸缩臂在各工况下应力和应变的分布云图，同时将分析结果与现场测试数据进行比对，以验证有限元静力学分析模型的准确性。最后，采用有限元分析软件对伸缩臂结构的疲劳寿命和动力学模态特性进行分析与研究。关键词：起重机伸缩臂；有限元分析；应

2、力应变；疲劳寿命；动力学模态分析IAbstractThepaperCommittedtotheReseachanddevelopmentoften-tonstypeSQ200ZB4Truckcranewhichwilltargetatanalysisandcalculationofthetelescopic-armandtherotatingarmintruck.UsetheStress-Calculationformulatoanalysethestrengthandstiffnessofeachdangeroussectionintelescopicarminordertover

3、ificatedthesafetyoftelescopic-arm’sStructure.Thenconstructedthe3Dparametricmodelofthetelescopic-armwithPRO/Esoftware,analysethestaticcharacteristicsof5conditiansintelescopic-armwiththeFiniteelementanalysissoftwareofANSYSWorkbench,andthenconstructedtheDistributionofStress-strainineachconditionof

4、telescopic-arm.Comparethevalueoffiniteelementwiththeactualmeasurementdatainordetoverificatedtheaccuracyofstaticmodelwhichcomefromfiniteelementanalysis.Atlast,starttodotheAnalysisandresearchonfatiguelifeanddynamicsmodalcharacteristicswiththefiniteelementanalysissoftware.Keywords：CranesTelescopic

5、；FiniteElementAnalysis；Stressandstrain；fatiguelife；dynamicsmodalanalysisII目录第1章绪论.................................................................................................................11.1课题研究背景...........................................................................................

6、......11.2国内外研究现状分析.....................................................................................11.3课题来源及选题意义.....................................................................................31.4本文主要内容及章节安排.............................................................................3

7、第2章伸缩臂参数化建模.........................................................................................52.1伸缩臂的结构特点.........................................................................................52.2伸缩臂三维实体建模................