【精品】简支矩形梁(均布载荷)挠度分析--梁单元分析

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1、1、儿何建模2、单元类型选择3、实常数或截血属性（realconstant,setion）4、材料属性（materialmodel）（结构分析：弹性模量EX,泊松比PRXY,静力分析必须）5、网格划分（meshtool）（尺寸控制,划分方法,mesh）材料号、截面编号、方向点（决定了梁截面相对于梁轴线的取向）6、载荷、施加约束7、后处理「考试■梁L重点」弯曲（beam188/189只能通过section进行定义）Preprocessor一section一beam-杆：只有拉压梁单元例题：已知简支梁受力如图示，q.

2、/均为已知。1Obx英制单位:L=200in,E=30e6psi,泊松比=0.3,q=1.792531b/in截面尺寸：b二h=2.5in求：梁屮间C截而的挠度wc；referencesreprocessorElElenentTypeElRealConstantsEllaterialProps3Sections3lodelingLi刀^^刀^^^^^ESCreate田KeypointsSLinesL^~——1•■”—'•一'InActiveCoor

3、LinesVornaltoLineVornto2Line:AtangletoliiAngleto2LiniPlot-linesBPreferencesSPreprocessorLdd/Edit/Delete日ElenentType1^1SwitchElenType旨AddDOF目RenoveDOFs目ElenTechControlLibraryofElementTypesStructuralMassPipeSolidShellSolid-ShellConstraintHyperJqstictapered54A3D

4、finitestrain2node1883node1893Delastic4plastic24tapered44V2node188ElementtypereferencenumberOKBPreferencesSPreprocessor田ElenentType田RealConstants田■atwialPropsSSect!ons田Sect!onLibraryElBeaa.SectionsCustoBSectionsTaperSectionsPlotSectionSectControlMLGeneralized目

5、PreferencesElPreprocessor田ElenentType田RealConstantsE)HaterialProps田■atarialLibrary目TemperatureUnitsElectronagUnitsateriallodels目ConvertALPx園ChangeIatBiub田FailureCriteriaHIritetoFile園Read£ronFile阀FavoritesStrueturalLinear渗ElasticOrthotropicAnisotropic

6、硕Nonline

7、ar◎Density

8、硕ThermalExpansion⑥Damping■/%▼%厂cc&车、cc■>77"[4JLinearIsotropicPropertiesforlater...LinearIsotropicerialPropertiesforerialNumber1T1AddTemperatureDeleteTemperatureGraph

9、OK1CancelHelp

10、园Preferences曰Preprocessor田EleaentType田RealConstants田■at.ezBialProps田

11、Sections田■od.JiiiLgSleshing田・£shAttributeseshTool田SizeCntrlsBlesherOpts田Concatenate田・esh田lodi£yleslk田Checklesh田ClearSct-pickineAttributes[LATT]AssignA/ttributestoPickedLinesMATMa/terialnumber1-1REALRealconstantsatnumberNonedefinedZlTYPEElementtypgnumberLBEAM1

12、88SECTElementsection11PickOrientationKej^poirit(s)INoOKApply1Cancel1Help1OkLincs-sct—pickMesh—拾取梁—okplotctrls—style——sizeandshapemSizeandShape

13、0percent[/SHRINK]Shrinkentitiesby[/ESKAPE]Di