内圆磨削过程计算机仿真VIP专享VIP免费

内圆磨削过程计算机仿真e（ee）指导教师：e[摘要]随着有限元技术的不断发展和完善，工程中越来越多的问题都采用该方法来解决。金属磨削是机械制造行业中最重要的加工工艺，研究磨削过程、实现优化磨削。圆环内圆磨削会导致加工表面产生热变形的尺寸误差和形状误差，故应对圆环内圆磨削过程进行精确分析与研究。加之圆环内圆磨削过程是一个不断升温的过程，整个过程工件上的温度在不断变化，构成一瞬态温度场。通过分析建立温度场模型、对圆环内孔磨削温度场进行仿真、分析内圆磨削温度场分布情况及受热变形过程。因此，利用有限元软件对内圆磨削过程进行模拟仿真，在很大程度上克服了数学模型难以描述、求解困难等问题。[关键字]:内圆磨削；温度场；热变形；有限元仿真；InternalGrindingProcessComputerSimulatione(e)tutor:eAbstract：Alongwithfiniteelementtechnologydevelopmentandimprovement,moreandmoreprojectsaresolvedbythismethod.Metalgrindingmachinerymanufacturingindustryisthemostimportantprocess,grindingprocess,grindingtoachieveoptimizationresearch.Internalgrindingforcircularringcausesthesurfacedeformationofthedimensionerrorandshapeerror,sotheanswerwithintheringgrindingprocessforaccurateanalysisandresearch.Togetherwiththeinnercircularringgrindingprocessisacontinuousheatingprocess,theentireprocessofworkpiecetemperaturechanging,formatransienttemperaturefield.Throughtheanalysisoftemperaturefieldisestablished,themodelofringinnerboregrindingtemperaturefieldsimulation,analysisofinternalgrindingtemperaturefieldandthermaldeformationprocess.Therefore,usingthefiniteelementsoftwareforinternalgrindingprocesssimulation,largelyovercomemathematicalmodelishardtodescribe,solvethedifficultproblems.Keywords：internalgrinding;temperaturefield;thermaldeformation;finiteelementsimulation;目录第一章绪论...........................................................11.1前言...........................................................11.2国内外研究现状及分析...........................................21.2.1有限元法在金属磨削研究中的国内外发展状况.................21.2.2有限元法在金属磨削研究中的国内外发展状况.................31.3本文意义及研究内容.............................................3第二章有限元简介.....................................................52.1有限元法的由来.................................................52.2有限元法的基本思路.............................................52.3有限元的发展...................................................52.4有限元软件介绍.................................................6第三章热分析基本知识.................................................83.1热分析符号与单位...............................................83.2传热学经典理论.................................................83.3热传递方式.....................................................93.3.1热传导...................................................93.4热分析材料基本属性.............................................93.4.1比热容..................................................103.4.2生热率..................................................103.5热载荷........................................................103.6稳态与瞬态热分析..............................................103.6.1稳态传热................................................103.6.2瞬态传热................................................103.7平面热应力....................................................11第四章磨削温度场及热变形有限元分析..................................124.1金属磨削热...................