延边大学题目:微振磨损试验机设计姓名:王洪宇学院:工学院专业:机械设计制造及其自动化班级:2008级指导老师:任靖日教授二〇一二年六月摘要微振摩擦发生在两接触表面之间有极小振幅运动的情况下。微振摩擦不仅可以导致接触表面间的摩擦磨损,而且会加速裂纹的产生和扩展,最终使得构件的疲劳寿命学校代码:10184学号:2084020020本科毕业设计说明书本科毕业设计延边大学本科毕业设计大大降低。目前,工业领域中因微振摩擦而造成的损伤相当普遍。因此,深入开展微振摩擦学的研究,对预防和控制工业微动损伤有重要的指导意义,且具有广阔的工程应用前景。而且在机械工程及其相关领域不断发展的形势下,摩擦学的研究领域正由宏观转向微观发展,所以对微振磨损试验机的设计和深入研究有利于在实际的工程生产中正确的选择材料,避免了一些不必要的浪费。本文概述了微振摩擦磨损试验机的发展概况、分类、特点等,并简要分析了验机的要求明细表、功能结构图。该试验机性能稳定,测试系统准确可靠,且试验数据充分。关键词:微振摩擦;位移缩小机构;弹性梁;试验机AbstractFrettingoccursonthecontactsurfacebetweentwocomponentswhichareplacedinasmallamplitudevibrationcircumstance.Frettingwearisoneofthemostimportantphenomenaforinducingadramaticreductionoffatiguestrength.Thedamageinducedbyfrettingisverycommoninindustryandpossiblecatastrophicconsequenceoccurs.Thus,studiesonfrettingwearnotonlyhavesciencesignificanceofexploringtheunknown,butalsoshowabroadprospectofengineeringapplicationinmanyfields,whichhaveimportantguidancetopalliatefrettingdamagesinindustry.Andwiththedevelopmentofmechanicalengineeringandtherelatedfields,thetribologyresearchisturningmacroscopicdevelopmenttomicroscopicdevelopment.Sothedesignandresearchesonfrettingtestingmachineareusefulforchoosingtherightmaterialsintheactualengineeringproductionthatavoidssomeunnecessarywaste.Thepapermainlyintroducesthedevelopmentsituation,classification,andcharacteristicsoffrettingtestingmachineandbrieflyanalyzesitsrequestindetailsandfunctionstructurechart.Theapparatushasstableperformance,accurateandreliabletestingsystemandthetestingdataissufficient.1延边大学本科毕业设计Keywords:frettingwear,displacementnarrowinstitutions,elasticbeam,testingmachine目录摘要..................................................................1Abstract................................................................2目录....................................................................3引言..................................................................5第一章绪论.............................................................61.1论文的研究背景.................................................61.2微振摩擦磨损试验机的研究现状...................................7第二章微振摩擦磨损试验机简介...........................................92.1主要用途与适用范围.............................................92.2主要技术规格、技术参数和技术指标...............................92.3工作条件......................................................102.4试验机结构及工作原理..........................................102.4.1试验机结构................................................102.4.2工作原理:(参看图1:工作原理图)........................102.4.3主轴及往复运动系统........................................112.4.4位移缩小机构系统.........................................112.4.5摩擦副及摩擦力测量系统....................................122.4.6测力传感器的选择..........................................132.4.7测力传感器的设计..........................................14...