石油大学有限元ansys 练习11A加载和求解.ppt

Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,January 30,2001,Inventory#001442,W11-,INTRODUCTION TO ANSYS 5.7-Part 1,Workshop Supplement,三维支架,练习11,A,加载和求解,11,A.,加载和求解,3-,D,支架,说明,在下图所示的三维支架上施加载荷，并用,PCG,迭代求解器求解,.,模型已用20节点的,SOLID95,划分了网格,杨氏模量为,30e6,psi,.,January 30,2001,Inventory#001442,W11-,11,A.,加载和求解,3-,D,支架,载荷,January 30,2001,Inventory#001442,W11-,11,A.,加载和求解,3-,D,支架,1.按教师指定的工作目录，用,“bracket-3d”,作为作业名，进入,ANSYS。,2.,恢复,“bracket-3d.db1”,数据库文件,:,Utility Menu File Resume from,选择,“bracket-3d.db1”,数据库文件,按,OK,或用命令:,RESUME,bracket-3ddb1,3.,进入求解器，约束孔表面法线方向的移动,:,Main Menu Solution -Loads-Apply -Structural-Displacement -Symmetry B.C.-On Areas+,拾取圆孔的面,(,面号为,3,4,5,6),按,OK,或用命令,:,/SOLU,DA,3,SYMM,DA,4,SYMM,DA,5,SYMM,DA,6,SYMM,January 30,2001,Inventory#001442,W11-,11,A.,加载和求解,3-,D,支架,4.为防止沿,Z,轴的刚性位移,约束关键点28的,Z,方向位移,:,Main Menu Solution -Loads-Apply -Structural-Displacement On,Keypoints,+,在,ANSYS,输入窗口输入关键点号,“28”，,按,Enter,按,OK,设置,Lab2=“UZ”,按,OK,或用命令,:,DK,28,UZ,5.,在三维块体的上表面施加,1000,psi,的压力,:,Main Menu Solution -Loads-Apply -Structural-Pressure On Areas+,拾取上表面,(,面号,11),按,OK,输入,VALUE=1000,按,OK,或用命令,:,SFA,11,1,PRES,1000,6.,选择,PCG,迭代求解器Main Menu Solution -Analysis Type-Soln Control.,打开,“Soln Options”,选项,选择“,Pre-Condition CG”,求解器,按,OK,或用命令,:,EQSLV,PCG,1.0E-8,January 30,2001,Inventory#001442,W11-,11,A.,加载和求解,3-,D,支架,7.存储数据库文件并求解,:,在工具条中选择,“SAVE_DB”(,或选择,:Utility Menu File Save as,Jobname,.db),Main Menu Solution -Solve-Current LS,按,OK,或用命令,:,SAVE,SOLVE,8.,求解完成后,进入通用后处理器并画,von,Mises,应力(,SEQV):,Main Menu General,Postproc,Plot Results -Contour Plot-Nodal,Solu,选择“,Stress”,和“,von,Mises,SEQV”,按,OK,或用命令,:,/POST1,PLNSOL,S,EQV,January 30,2001,Inventory#001442,W11-,11,A.,加载和求解,3-,D,支架,January 30,2001,Inventory#001442,W11-,11,A.,加载和求解,3-,D,支架,9.改变观察角度并重画图,:,Utility Menu,PlotCtrls,View Settings Viewing Direction.,设置,XV=-0.5,设置,YV=-0.25,设置,ZV=1,按,OK,或用命令,:,/VIEW,1,-0.5,-0.25,1,/REPLOT,10.,存储并退出,ANSYS:,在工具条上拾取“,SAVE_DB”,在工具条上拾取,“QUIT”,January 30,2001,Inventory#001442,W11-,连杆,练习 11,B,加载和求解,11,B.,加载和求解,连杆,说明,在下图所示的连杆模型上施加载荷,(,对称的一半,)，并用,PCG,求解器求解,.,模型已用20节点的,SOLID95,单元划分了网格,杨氏模量为,30e6,psi,.,January 30,2001,Inventory#001442,W11-,11,B.,加载和求解,连杆,载荷,January 30,2001,Inventory#001442,W11-,11,B.,加载和求解,连杆,1.按教师指定的工作目录，用,“,conn,-rod”,作为作业名，进入,ANSYS。,2.,恢复数据库文件,“,conn,-rod.db1”:,Utility Menu File Resume from,选择数据库文件,“,conn,-rod.db1”,按,OK或用命令,:,RESUME,conn,-rod,db1,3.,进入求解器，在大孔的表面施加法向约束,:,Main Menu Solution -Loads-Apply -Structural-Displacement -Symmetry B.C.-On Areas+,拾取孔的表面,(,面号,8、9),按,OK,或用命令,:,/SOLU,DA,8,SYMM,DA,9,SYMM,January 30,2001,Inventory#001442,W11-,11,B.,加载和求解,连杆,4.在,Y=0,的所有表面上施加对称约束边界条件,:,Main Menu Solution -Loads-Apply -Structural-Displacement -Symmetry B.C.-On Areas+,在,Y=0,的平面上拾取面,(,面号为,7,10,和 13),按,OK,或用命令:,DA,7,SYMM,DA,10,SYMM,DA,13,SYMM,5.,为防止沿,Z,轴的刚性位移,约束节点702的,Z,方向位移：,Main Menu Solution -Loads-Apply -Structural-Displacement On Nodes+,在,ANSYS,输入窗口输入“702”并 按,Enter,按,OK,设置,Lab2=“UZ”,按,OK,或用命令,:,D,702,UZ,January 30,2001,Inventory#001442,W11-,11,B.,加载和求解,连杆,6.在小孔周围的11号面上施加,1000,psi,的压力,:,Main Menu Solution -Loads-Apply -Structural-Pressure On Areas+,拾取 11号面,按,OK,设置,VALUE=1000,按,OK,或用命令,:,SFA,11,1,PRES,1000,7.,选择,PCG,求解器,:,Main Menu Solution -Analysis Type-Soln Control.,打开,“Soln Options”,选项,选择“,Pre-Condition CG”,求解器,按,OK,或用命令:,EQSLV,PCG,1.0E-8,8.,存储数据库文件并求解,:,在工具条上拾取“,SAVE_DB”(,或选择,:Utility Menu File Save as,Jobname,.db),Main Menu Solution -Solve-Current LS,按,OK,或用命令,:,SAVE,SOLVE,January 30,2001,Inventory#001442,W11-,11,B.,加载和求解,连杆,9.求解完成后,进入通用后处理器，画,von,Mises,应力(,SEQV):,Main Menu General,Postproc,Plot Results -Contour Plot-Nodal,Solu,选择“,Stress”,和“,von,Mises,SEQV”,按,OK,或用命令,:,/POST1,PLNSOL,S,EQV,10.,存储并退出,ANSYS:,在工具条上拾取,“SAVE_DB”,在工具条上拾取,“QUIT”,January 30,2001,Inventory#001442,W11-,轮,练习 11,C,加载和求解,11,C.,加载和求解,轮,说明,在图示模型上施加荷载并用,PCG,求解器求解,.,模型已用,SOLID45、SOLID95、SOLID92,块体单元划分了网格，,SOLID95,用于棱锥处,SOLID92,用于,tets,.,杨氏模量为,30e6,psi,，,密度为,0.00073,lbf,-s,2,/in,4,.,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,荷载,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,1.按教师指定的工作目录，用,“,wheelb,-omega”,作为作业名，进入,ANSYS。,2.,恢复数据库文件“,wheelb,-omega.db1”:,Utility Menu File Resume from,选择“,wheelb,-omega.db1”,文件,按,OK,或用命令,:,RESUME,wheelb,-omega,db1,3.,选择名为,“areas_1”,的面:,Utility Menu Select Comp/Assembly Select Comp/Assembly.,按,OK,Utility Menu Plot Areas,或用命令,:,CMSEL,S,AREAS_1,APLOT,4.,在选择的面上施加对称边界条件,:,Main Menu Solution -Loads-Apply -Structural-Displacement -Symmetry B.C.-On Areas+,拾取,Pick All,或用命令,:,/SOLU,DA,ALL,SYMM,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,5.选择全部实体并画面,:,Utility Menu Select Everything,Utility Menu Plot Areas,或用命令,:,ALLSEL,ALL,ALL,APLOT,6.,为防止刚性位移，约束节点33,Y,方向位移,:,Main Menu Solution -Loads-Apply -Structural-Displacement On Nodes+,在,ANSYS,输入窗口输入结点号,“33”,并按,Enter,按,OK,设置Lab2=“UY”,按,OK,或用命令:,D,33,UY,7.,施加绕,Y,轴的转动速度,525,rad,/sec:,Main Menu Solution -Loads-Apply -Structural-Other Angular Velocity.,设置,OMEGY=525,按,OK,或用命令:,OMEGA,0,525,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,8.选择,PCG,迭代求解器,:,Main Menu Solution -Analysis Type-Soln Control.,打开,“Soln Options”,选项,选择,“Pre-Condition CG”,求解器,按,OK,或用命令:,EQSLV,PCG,1.0E-8,9.,存储数据库文件并求解,:,在工具条上拾取,“SAVE_DB”(,或选择:,Utility Menu File Save as,Jobname,.db),Main Menu Solution -Solve-Current LS,按,OK,或用命令:,SAVE,SOLVE,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,10.求解完成后，进入通用后处理器，画,von,Mises,应力,(SEQV):,Main Menu General,Postproc,Plot Results -Contour Plot-Nodal,Solu,选择“,Stress”,和,“von,Mises,SEQV”,按,OK,或用命令:,/POST1,PLNSOL,S,EQV,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,11.沿局部坐标系11（柱坐标系）的,Z,轴扩展结果,Utility Menu,WorkPlane,Change Active CS to Specified,Coord,Sys,设置,KCN=11,按,OK,Utility Menu,PlotCtrls,Style Symmetry Expansion User-Specified Expansion.,设置,NREPEAT=16,设置,TYPE=“Local Polar”,设置,PATTERN=“Alternate,Symm,”,设置,DY=22.5,按,OK,或用命令:,CSYS,11,/EXPAND,16,LPOLAR,HALF,22.5,/REPLOT,January 30,2001,Inventory#001442,W11-,11,C.,加载和求解,轮,12.关闭扩展选项,:,Utility Menu,PlotCtrls,Style Symmetry Expansion No Expansion,Utility Menu Plot,Replot,或用命令:,/EXPAND,/REPLOT,13.,存储并退出,ANSYS:,在工具条上拾取,“SAVE_DB”,在工具条上拾取,“QUIT”,January 30,2001,Inventory#001442,W11-,