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1、东北大学学士学位论文摘要振动筛广泛用于矿山、煤炭、冶炼、建材、耐火材料、轻工、化工等行业。振动筛的结构和材料直接影响其使用性能和寿命。在激振力作用下大型直线振动筛横梁、侧板等主体部件频繁发生断裂事故，严重影响振动筛的筛分效果和生产效率。因此采用有限元法对振动筛进行模态分析和静力学分析判断是否避免结构发生共振,这对于提高振动筛的工作效率，延长振动筛的使用寿命具有重要意义。本文用UG建立了振动筛的三维模型，并利用ANSYS软件建立了有限元模型，并对模型进行了模态分析和静力学分析，通过分析得到了振动筛前30阶固有频率和对应的振型图、等效应力云图、变形云图，进而判断振动筛设计的合
2、理性。关键词：振动筛；模态分析；静力学分析；固有频率locatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame51东北大学学士学位论文AbstractThevibratingscreeniswidelyusedinmining,coal
3、,metallurgy,buildingmaterials,refractorymaterials,lightindustry,chemicalandotherindustries.Theshakerofstructuresandmaterialsdirectlyaffecttheirperformanceandlife.Thelarge-scalelinearshakerbeams,theruptureaccidentofsidesandothermaincomponentsarefrequentlyoccurredundertheactionoftheexciting
4、force,seriouslyimpactedtheeffectsandproductionefficiencyofthevibratingscreen＇sscreening.Therefore,usingtheFiniteelementmethodonShaker＇smodalanalysisandstaticanalysisanddeterminewhetherithaveavoidedthestructureoftheresonance,thisisofgreatsignificanceforimprovingtheefficiencyoftheshaker,ext
5、endingtheservicelifeofthevibratingscreenByusingUGtoestablishathree-dimensionalmodelofthevibratingscreen,andusingANSYSsoftwaretoestablishedafiniteelementmodel,andmakingmodalanalysisandstaticanalysistothemodel,byanalyzingtheshakertop30firstnaturalfrequencyandthecorrespondingandvibrationmode
6、diagram,theequivalentstresscloudchart,deformationcloudchartandthenanalysetherationalityofshakerdesign.Keywords:vibratingscreen;modalanalysis;staticsanalysis;naturalfrequencylocatedintheTomb,DongShenJiabang,deferthenextdayfocusedontheassassination.Linping,Zhejiang,1ofwhichliquorwinemasters
7、(WuzhensaidinformationisCarpenter),whogotAfewbayonets,duetomissedfatal,whennightcame51东北大学学士学位论文目录1绪论11.1课题研究背景及意义11.2振动筛结构强度研究概况11.3本课题的研究内容22振动筛三维建模32.1UG软件介绍32.1．1实体建模32.1.2特征建模32.1.3自由形状建模32.1．4工程制图32.1．5装配建模42.2零件建模43振动筛有限元模型建立123.1ANSYS软件介绍123.1.1前处理模块123.1.2分
