50吨起重单吊钩优化设计【毕业设计】

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1、本科毕业论文（20届）50吨起重单吊钩优化设计摘要摘要：吊钩是起重机上重要的承力构件，人们对吊钩的设计仍然沿袭传统的静强度设计方法，设计出的吊钩往往会出现不安全或者者过分安全的问题。吊钩强度不足容易导致其严重变形或者断裂，发生重大的安全事故,造成巨大的经济损失。而安全系数过大，又造成制作材料的浪费和吊钩的粗笨。本文针对50吨起重单吊钩，对其结构和使用情况作了分析，结果表明该吊钩存在安全系数过大、吊钩自重大的情况。利用Solidworks2010软件，根据吊钩的使用要求，对吊钩的结构作优化设计。将

2、优化后的吊钩模型与原始模型作对比分析，并对优化后的吊钩作出结构的安全性评价，提出吊钩结构的改进意见。结构优化设计是近二十多年来发展起来的一门新技术，它的发展对传统结构设计产生了重大的影响，使人们从被动的分析、校核时期进入了主动的设计阶段。与传统的设计方法相比，优化设计提高了设计质量、加快设计进度以及降低设计成本，根据资料显示可使工程造价降低5%-25%，经济效益十分明显。结构优化设计将是今后结构设计的主流趋势。关键词:吊钩；有限元分析；安全系数；优化设计。OptimizationDesignof

3、the50TLiftingSingle-hookAbstracts:Hookistheimportantstressedcomponentofcrane，nowpeoplestillusethetraditionalstaticintensitydesignprocedurestodesignthehook.Theresultissometimesinsufficientsafeandsometimesexcessivesafeinhooksafety.Theinsufficienthookin

4、tensityeasilymakesthehookheavydeformationevenfracture,causessignificantsafeaccident,andbringsaboutgiganticeconomicloss.Yetiftheassurancecoefficientistoobig,itwillhappenthatmaterial’suneconomicuseandhook’sponderosity.Theauthoranalyzesitsstructureandus

5、agetothe50Tliftingsingle-hook,theresultindicatesthatthehookhasanoversizeassurancecoefficientandabigself-weight.BythesoftwareSolidworks2010,accordingtotheusagedemand,thehookstructure’soptimizationdesignhasbeendone.Carryingoutacomparativeanalysisbetwee

6、nthepre-optimizationmodelandthepost-optimizationmodelofthehook,estimatingthesecurityofthehookstructureafteroptimization,finallyprovidingimprovementsuggestionsaboutthehook’sstructure.Structuraloptimizationdesignisanewtechniquedevelopedintwentyrecentye

7、ars,itsdevelopmenthasbeensignificanteffectonthetraditionalstructuraldesign,andmakespeopleenterfromthepassiveanalysisandverifyingintensityperiodtotheinitiativedesigningstage.Comparingwiththetraditionaldesignmethods,theoptimizationdesigncanimprovedesig

8、nquality，accelerateitsprogressandreduceitscost,itcanmakeaprojectcostreduce5%-25%bythecorrelativedataindicating,theeconomiceffectisveryobvious.Structureoptimizationdesignwillbecomethemainstructuredesignmethodinfuture.Keywords:hook;finiteelementanalysi