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1、2D 金属切削模拟步骤在 ANSYS Launcher 界面中,选择ANSYS Mechanical/LS-DYNA 1、 菜单过滤Main Menu PreprocessorLD-DYNA ExplicitOK 2、 设置文件名及分析标题Utility MenuFile change Jobname 2D cuttingNew log and error file :YESOK Utility MenuFile change Titlecutting analysis OK 3、 选择单元类型Main menu preprocessorElement Type Add/Edit/Delete
2、Add 2D solid 162OK options选择 const.stress ;Lagrangian OK 4、 定义材料模型(1)定义刀具材料模型Main menu preprocessorMaterial PropsMaterial Modelsrigid material输入:DENS : 5.2e3 ; EX : 4.1e11 ; NUXY : 0.3 ; 选择“Y and Zdisps ” ;“All rotations”OK (2)定义工件Johnson-cook材料模型Main menu preprocessor Material Props Material Models
3、 Gruneisen Johnson-cook 输入: DENS :7.8e3 ;EX :2.06e11 ;NUXY : 0.3 A:507;B: 320;C:0.28 ; n;0.064 ;m=1.06 D1:0.15 ; D2:0.72 ; D3:1.66 ;D4:0.005 ;D5:-0.84 5、 创建几何模型(1)创建工件模型Main menu preprocessorCreate Areas Rectangle By Dimensions 输入: X1,X2: 0,5;Y1,Y2:0,3OK (2)创建刀片模型Main menu preprocessorCreate Keypion
4、ts In Active CS依次输入:keypoint number:5,X 、 Y、Z : 5.1 , 2.9 ,0;keypoint number:6,X 、 Y、Z : 6,3.228 ,0;keypoint number:7,X 、 Y、Z : 6,4,0;keypoint number:8,X 、 Y、Z : 5.294 ,4,0OK 6、 网格划分(一)(1)对刀片进行网格划分Utility MenuSelect EntitiesLines :By Num/Pick Apply 选取刀片边线OK Main menu preprocessorMeshing Size contrls
5、Manualsize Lines All linesNDIV:10 OK (2)对刀尖半圆进行网格划分Utility MenuSelect EntitiesLines :By Num/Pick Apply 选取刀尖半圆OK Main menu preprocessorMeshing Size contrlsManualsize Lines All linesNDIV:3OK (3)确定刀片的单元属性Main menu preprocessor Meshing Mesh AttributesPicked Aeras 选取刀片Apply确定材料号和单元类型号为1OK 名师资料总结 - - -精品资
6、料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 1 页,共 3 页 - - - - - - - - - (4)刀片网格划分Main menu preprocessorMeshingMeshTool Mesh:Aeras ;shape:Tri ;free Mesh选取刀片OK (二)(5)对工件进行网格划分切分工件Utility menu Workplane Wp settingsGrid and TriadMinimum ,maximum:-5,5 ; Spacing:1.0OK 平移和旋转工作平面并用其切分工件
7、Utility menu Workplane Offset wp by incremensX,Y, Z offsets:0,2.5 ,0;XY , YZ,ZX angle :0,90,0OK Main menu preprocessorModeling operate Booleans Divide Areas by wkplane选取工件 OK 取消工作平面显示Utility menuworkplane Display workingplane等分接触区域相关Y 向线段Utility MenuSelect EntitiesLines :By Num/Pick Apply 选取工件接触区Y 向
8、线段(两条)OK Main menu preprocessorMeshing Size contrlsManualsize Lines All linesNDIV:10 OK 等分接触区域相关X 向线段Utility MenuSelect EntitiesLines :By Num/Pick Apply 选取工件接触区X 向线段(两条)OK Main menu preprocessorMeshing Size contrlsManualsize Lines All linesNDIV:40 OK 等分接触区域不相关Y 向线段Utility MenuSelect EntitiesLines :B
9、y Num/Pick Apply 选取工件接触区Y 向线段(两条)OK Main menu preprocessorMeshing Size contrlsManualsize Lines All linesNDIV:25 OK 等分接触区域不相关X 向线段Utility MenuSelect EntitiesLines :By Num/Pick Apply 选取工件接触区X 向线段(底边)OK Main menu preprocessorMeshing Size contrlsManualsize Lines All linesNDIV:30 OK 确定工件的单元属性Main menu pr
10、eprocessor Meshing Mesh AttributesPicked Aeras 选取工件Apply确定材料号为2 和单元类型号为1OK 工件网格划分Main menu preprocessor MeshingMeshTool Mesh:Aeras ; shape: Quad;mappedMesh选取工件OK 7、 建立 part Main menu preprocessorLS-DYNA options part optionscreate all part OK (part1:刀具; part2 :工件 ) 名师资料总结 - - -精品资料欢迎下载 - - - - - - -
11、- - - - - - - - - - - 名师精心整理 - - - - - - - 第 2 页,共 3 页 - - - - - - - - - Plot parts (不同颜色显示单元)8、定义接触信息Main menu preprocessor LS-DYNA options contact Define contact surface to surf ;Eroding ;静、动摩擦系数为0.15 、0.10 OK 弹出 contact options对话框,确定接触件(工件) ,目标件(刀片)OK 9、 施加边界条件Utility menu select Entities Nodes :
12、By Location :X CoordinatesMin,Max:-0.01,0.01;From FullApply (选中左侧边所有节点)Main menu preprocessor LS-DYNA options ConstraintsApply on nodespick AllAll DOF OK Utility menu select Entities Nodes :By Location :Y CoordinatesMin,Max:-0.01,0.01;From FullApply (选中底边所有节点)Main menu preprocessor LS-DYNA options C
13、onstraintsApply on nodespick AllAll DOF OK 恢复整个模型的选择Utility menuselectEverything 10、对刀片施加初速度Main menu preprocessor LS-DYNA options Initial Velocity on parts w/Nodal Rotate 选择 part1 , VX:-100OK 恢复整个模型的选择Utility menuselectEverything 11、设置能量控制选项Main menuSolutionAnalysis optionsEnergy options打开所有能量控制选项O
14、K 12、设置人工体积粘性选项Main menu Solution Analysis options Bulks viscosity Quadratic Viscosity Coefficient:1.0OK 13、设置时间步长因子Main menuSolutionTime controlsTime step ctrlsTime step scale factor:0.6OK 14、设置求解时间Main menu SolutionTime controlsSolution time1e-3 OK 15、设置结果文件输出步数Main menu Solution Output Controls F
15、ile output Freq Number of steps EDRST:50;EDHTIME:50OK 16、设置结果文件的输出类型Main menuSolutionOutput ControlsOutput File TypesAdd:ANSYS and LS-DYNAOK 17、输出 K文件Main menu SolutionWrite jobname.K 18、求解Main menu SolutionSolve 19、后处理(暂时不管)名师资料总结 - - -精品资料欢迎下载 - - - - - - - - - - - - - - - - - - 名师精心整理 - - - - - - - 第 3 页,共 3 页 - - - - - - - - -