ANSYS优化设计入门.doc

ANSYS TRAININGANSYSANSYS TRAININGA. ?;?:a)-b)(, , ), ANSYS TRAINING.*?27%*, Orbison,ANSYS Conference Proceedings 1991, VolIIIANSYS TRAININGB.1.?()?()ANSYS TRAINING.2. :?ANSYS TRAINING.3.:CCCCCANSYS TRAINING200 ft50 ft20 lb/in., :10,0001ANSYS TRAINING.?(DVs)CA1, A2, A3CH1, H21/4H1H2A1A2A3?(SVs) CSMAX 10,000 psiCDMAX 1.0 in.?VH1ANSYS TRAINING.?DV, :CA1 = 2.0 in2CA2 = 2.0CA3 = 2.0CH1 = 0.0 inCH2 = 0.0ANSYS TRAINING.?DV SV DV?C, 1.0 in,CANSYSSVDVSVmaxSVminDVminDVmaxANSYS TRAINING.?C?() ANSYS TRAININGANSYS?, :CCANSYS TRAINING. ANSYS?APDL, CDV, SV ?C() () ANSYS TRAINING. ANSYS?CC50DVSVANSYS TRAINING. ANSYS?ANSYS TRAININGA. ?() ?H1H2A1A2A3H1ANSYS TRAININGB. / ?ANSYS 1.2.3.4.5.ANSYS TRAINING?():1. 2. -3. 4. ?Main Menu Design Opt?ANSYS TRAINING.?:15,000 /C: E = 30E6 psi, = 7.2E-4 lb-s2/in4, = 0.3rimymid10.0R5. 0Rhub0.60.41.61.0xmidANSYS TRAININGrimymid10.0R6. 0Rhub0.60.41.61.0xmid.C25,000 psiC1000 Hz CANSYS TRAINING-4?:CCCANSYS TRAINING-.?:CDesign Opt -Analysis File-AssignCOPANL ANSYS TRAINING-?4?:CCCANSYS TRAINING-.(DVs)?rimyminhub?CTHETAHUB, 3090CTHETARIM, 45135CXMID, 0.54.5 inCYMID, 0.251.5 inxmidANSYS TRAINING-.?DVs,CDesign Opt Design Variables AddCOPVAR :OPVAR,name,DV,min,max,tolerANSYS TRAINING-.?60?1020?(MAX)?(MIN)MIN0.001*MAX.ANSYS TRAINING-.?(TOLER)?TOLER DV= 0.01*(MAX-MIN)THETAHUB = 54.255.0, |54.2-55.0| = 0.8, TOLER=0.01*(90-30)=0.6.ANSYS TRAINING-.(SVs)?SVs:C25000 psiC1000 HzrimymidhubxmidANSYS TRAINING-.?SVs,CDesign Opt State Variables AddCOPVAR :OPVAR,name,SV,min,max,tolerANSYS TRAINING-.?100?(MINMAX) ( MINMAX)ANSYS TRAINING-.?MAXMIN?TOLER SV= 0.01*MAX 0.01*MIN0.01*(MAX-MIN)FREQ1 =991.3 Hz1000-(0.01*1000) = 990 Hz.MAXMINANSYS TRAINING-.(OBJ)?OBJrimymidhubxmidANSYS TRAINING-.?CDesign Opt ObjectiveCOPVAR OPVAR,name,OBJ,tolerANSYS TRAINING-.?(TOLER)?TOLER 0.01*SDEV =39003850|3900-3850| = 50, 0.01*3900 =39.0ANSYS TRAINING-.?OBJ?ANSYS OBJ?1/y A-y(Ay)ANSYS TRAINING-334?:A.B.C.D.ANSYS TRAINING-.A. ?:C(OPDATA): jobname.optC(OPLOOP): DVC(OPPRNT). : C(OPKEEP). :ANSYS TRAINING-.?Design Opt Controls.ANSYS TRAINING-.?SAVEjobname.bdb.?jobname.rstjobname.brst(.rth.brth, .rmg.brmg, .rfl.brfl)ANSYS TRAINING-.B. ?ANSYS:CC?ANSYS TRAINING-.?OPTYPE OPSUBP ?Design Opt Method/Tool: ANSYS TRAINING-.C. ?, :CCCCANSYSANSYS TRAINING-.?:CDesign Opt -OptDatabase-StatusCSTATUS ANSYS TRAINING-.?OPSAVE ?Design Opt -Opt Database-Save.C:ANSYS TRAINING-.D. ?OPEXE?Design Opt RunCOKANSYS TRAINING-.?:1.|OBJcurrent-OBJbest| TOLERobj2.|OBJcurrent-OBJcurrent-1| TOLERobjANSYS TRAINING-.7. DV, |DVcurrent-DVbest| TOLERdv4.DV, |DVcurrent-DVcurrent-1| Graphs/TablesANSYS TRAINING-.?jobname.bdb(best db).CMain Menu FinishCUtility Menu File Resume fromCUtility Menu Plot Elements?:CFINISHCRESUMEjobname,bdbCEPLOTANSYS TRAINING-.ANSYS TRAINING-.ANSYS TRAININGANSYS TRAININGvA. B. C. D. E. ANSYS TRAININGA.?CCC0 () 1 ()ANSYS TRAINING.?CCANSYS TRAINING?.ANSYS TRAININGB. ?ANSYS0()1()?=1ANSYS TRAINING?:C01().CANSYS ()?:CCCi, 0i Material Props Material Library).ANSYS TRAINING?C, C2ANSYS TRAINING34CCC?ANSYS TRAINING?:C(UX=UY=0)(UY=0)PinnedSimply SupportedANSYS TRAINING?:1.2.(LSWRITE orSolution Write LS File.)ANSYS TRAINING1.:CCANSYS TRAINING2.():CANSYS TRAINING334:C(TOVAR TODEF)?()?C(TOLOOP)?ANSYS TRAINING?Topological Opt -Set Up-Basic Opt ?Topological Opt Run .ANSYS TRAINING3334?topoplotCPLNSOL,TOPOCor General Postproc Plot Results Nodal SolutionC(pseudo-density 1.0)C(pseudo-density 0.0)ANSYS TRAINING?C2: /CONTOUR,2 Utility Menu PlotCtrls Style Contours UniformContours.C: /DSCALE,OFF Utility Menu PlotCtrls Style DisplacementScaling.C: /PLOPTS,INFO,OFFUtility Menu PlotCtrls Window Controls WindowOptions.ANSYS TRAININGANSYS TRAINING3333ANSYS TRAININGD. ?1.2.3.ANSYS TRAININGANSYS TRAINING2A. ?thetahubthetarimxmidymid?7500 rpmrimymid10.0R4.0Rhub0.60.41.61.0xmid?E = 30e6 psi= 7.2e-4 lb-s2/in4= 0.3ANSYS TRAINING1.ANSYS jobnamerotdiskCUtility Menu File Change Jobname?New jobname= rotdisk?OK2.2A. .rimymidhubxmidhub_rihub_rohub_wrim_ririm_rorim_whub_htrim_htANSYS TRAINING2A. .2.?rim_ri=rim_ro-rim_w?rim_ht=0.5?thetahub=90?thetarim=90?xmid=(rim_ri-hub_ro)/2?ymid=(hub_ht+rim_ht)/2ANSYS TRAINING2A. .3.CMain Menu Preprocessor Create Rectangle By 2 Corners?WP X = hub_ri?WP Y = 0?Width = hub_w?Height = hub_ht?Apply?WP X = rim_riANSYS TRAINING2A. .4.keypointC(Preprocessor ) Create KeypointsIn Active CS.?NPT = 10?X,Y,Z = hub_ro+xmid, ymid, 0?OKANSYS TRAINING2A. .6. KP 10 C(Preprocessor ) Create SplinesWith Options Splinethru KPs?CKP KP10KP?Apply ?XV1YV1ZV1 = 1 90+thetahub 0ANSYS TRAINING2A. .7.CUtility Menu WorkPlane ChangeActive CS to Global CartesianC(Preprocessor ) Create -Areas-Arbitrary Through KPs?OK ANSYS TRAINING2A. .8.CPreprocessor Element Type Add/Edit/Delete?AddCSolid Quad 8node 82OK?OptionsCK3 = AxisymmetricCOK?CloseCPreprocessor Material Props Material Models?ANSYS TRAINING2A. .9. CPreprocessor MeshTool?Smart Size?smart size 3?MeshMesh AreasPick All?CloseCUtility Menu Plot ElementsCToolbar SAVE_DBANSYS TRAINING2A. .10.CMain Menu Solution NewAnalysis.?StaticOK.C(Solution ) Analysis Options.?Equation solver = Precondition CG?Tolerance/level = 1e-5ANSYS TRAINING2A. .11.CUtility Menu Plot LinesC(Solution ) -Loads-Apply Displacement -Symmetry B.C.-OnLines?OKANSYS TRAINING2A. .12.7500 rpm ANSYS /CUtility Menu Parameters ScalarParameters. :?rpm=7500?w=2*pi*rpm/60?CloseC(Solution ) Apply Other AngularVelocity ANSYS TRAINING2A. .14.von MisesCMain Menu General Postproc PlotResults Nodal Solu?Item, Comp = Stress, von MisesSEQV?OKANSYS TRAINING2A. .15.SMAXSDEVSMAXCUtility Menu Parameters GetScalar DataANSYS TRAINING2A. .16.SDEV, NELEM x 1 NELEM, CUtility Menu Parameters Get ScalarData?OKC= nelemC= ANSYS TRAINING2A. .16.CUtility Menu Param