小法 发表于 2012-8-21 20:39

ansys齿轮模态分析，结果偏大，不知道正确不正确

用ansys做齿轮的模态分析，在Pro/E中建模，单位制为mmns，导入到ansys中分析，得到的前五阶模态固有频率值如下：
*****INDEX OF DATA SETS ON RESULTS FILE*****

   SET   TIME/FREQ    LOAD STEP   SUBSTEPCUMULATIVE
   166849.             1         1         1
   279018.             1         2         2
   379028.             1         3         3
   479041.             1         4         4
   579071.             1         5         5
怎么会这么大呢？求哪位大侠帮忙，我的弹性模量是2.06e5Mpa ,泊松比0.28，密度7.8e-9Ton/mm^2,没有错啊，贴出了命令流如下
/BATCH
/COM,ANSYS RELEASE 12.0.1UP20090415       11:15:20    08/06/2012
/input,start120,ans,'D:\Program Files\ANSYS Inc\v120\ANSYS\apdl\',,,,,,,,,,,,,,,,1
/inp,g_c1,anf   
/VIEW,1,1,1,1   
! /menu,on
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE
WPSTYLE,,,,,,,,0
/REPLOT,RESIZE
!*
!*
/CWD,'F:\ansys\model_c1'
!*
/NOPR   
/PMETH,OFF,0
KEYW,PR_SET,1   
KEYW,PR_STRUC,1
KEYW,PR_THERM,0
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,0
KEYW,MAGNOD,0   
KEYW,MAGEDG,0   
KEYW,MAGHFE,0   
KEYW,MAGELC,0   
KEYW,PR_MULTI,0
KEYW,PR_CFD,0   
/GO
!*
/COM,   
/COM,Preferences for GUI filtering have been set to display:
/COM,Structural   
!*
VPLOT   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
APLOT   
/PNUM,KP,0
/PNUM,LINE,0
/PNUM,AREA,1
/PNUM,VOLU,0
/PNUM,NODE,0
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0   
!*
/PNUM,ELEM,0
/REPLOT
!*
/DIST,1,1.08222638492,1
/REP,FAST   
/USER,1   
/VIEW,1,0.409584778087E-01, -0.325968817086    ,0.944492844538
/DIST,1,   26.5064033675
/ANG,   1,-1.39672649135
/REPLO
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
!*
ET,1,SOLID186   
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2.06e5
MPDATA,PRXY,1,,0.28
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,7.8e-9   
SMRT,6
SMRT,7
CM,_Y,VOLU
VSEL, , , ,       1
CM,_Y1,VOLU
CHKMSH,'VOLU'   
CMSEL,S,_Y
!*
VSWEEP,_Y1
!*
CMDELE,_Y   
CMDELE,_Y1
CMDELE,_Y2
!*
APLOT   
FINISH
/SOL
ASEL,ALL
FLST,5,2,5,ORDE,2   
FITEM,5,155
FITEM,5,-156
ASEL,S, , ,P51X
NSLA,S,1
NPLOT   
APLOT   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/VIEW,1,,,1
/ANG,1
/REP,FAST   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
NSEL,S,LOC,Z,12
NPLOT   
/USER,1   
/VIEW,1,0.624926327874    ,0.539976528922    ,0.563819503869
/ANG,   1,   14.5703005367
/REPLO
/VIEW,1,0.879887581300    ,0.469815420557    ,0.712131650753E-01
/ANG,   1,   33.4843232561
/REPLO
ALLSEL,ALL
APLOT   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
ASEL,ALL
FLST,5,2,5,ORDE,2   
FITEM,5,155
FITEM,5,-156
ASEL,S, , ,P51X
NSLA,S,1
NPLOT   
/PNUM,KP,1
/PNUM,LINE,0
/PNUM,AREA,1
/PNUM,VOLU,0
/PNUM,NODE,0
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0   
!*
/PNUM,ELEM,0
/REPLOT
!*
ALLSEL,ALL
VPLOT   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/PNUM,KP,1
/PNUM,LINE,0
/PNUM,AREA,0
/PNUM,VOLU,0
/PNUM,NODE,0
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0   
!*
/PNUM,ELEM,0
/REPLOT
!*
/USER,1   
/VIEW,1,0.247657627778    ,0.117179763029    ,0.961735203962
/ANG,   1,   4.44911431593
/REPLO
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/FOC,   1,-6.09605391666    ,0.992717626994E-01,   7.55011741206
/REPLO
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
NSEL,ALL
KSEL,ALL
KSEL,S, , ,   308
FLST,2,1,3,ORDE,1   
FITEM,2,308
!*
/GO
DK,P51X, ,0, ,0,ALL, , , , , ,
ALLSEL,ALL
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
!*
ANTYPE,2
!*
!*
MODOPT,LANB,5   
EQSLV,SPAR
MXPAND,5, , ,0
LUMPM,0
PSTRES,0
!*
MODOPT,LANB,5,0,0, ,OFF
MXPAND,5,0,0,1,0.001,   
!*
OUTRES,ALL,ALL,
!*
OUTPR,ALL,ALL,
ALLSEL,ALL
/STATUS,SOLU
SOLVE   
FLST,2,308,3,ORDE,2
FITEM,2,1   
FITEM,2,-308
DKDELE,P51X,ALL
/DIST,1,1.08222638492,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/PNUM,KP,0
/PNUM,LINE,0
/PNUM,AREA,0
/PNUM,VOLU,0
/PNUM,NODE,0
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0   
!*
/PNUM,ELEM,0
/REPLOT
!*
/VIEW,1,,,1
/ANG,1
/REP,FAST   
ASEL,ALL
FLST,5,2,5,ORDE,2   
FITEM,5,155
FITEM,5,-156
ASEL,S, , ,P51X
NSLA,S,1
CSYS,1
FINISH
/PREP7
FLST,2,1065,1,ORDE,10   
FITEM,2,4233
FITEM,2,-4278   
FITEM,2,5153
FITEM,2,-5167   
FITEM,2,5385
FITEM,2,-5399   
FITEM,2,8467
FITEM,2,-9440   
FITEM,2,28453   
FITEM,2,-28467
NROTAT,P51X
FINISH
/SOL
FLST,2,1065,1,ORDE,10   
FITEM,2,4233
FITEM,2,-4278   
FITEM,2,5153
FITEM,2,-5167   
FITEM,2,5385
FITEM,2,-5399   
FITEM,2,8467
FITEM,2,-9440   
FITEM,2,28453   
FITEM,2,-28467
!*
/GO
D,P51X, ,0, , , ,ALL, , , , ,   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
ALLSEL,ALL
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
MXPAND,5,0,0,1,0.001,   
!*
OUTRES,ALL,ALL,
!*
OUTPR,ALL,ALL,
/STATUS,SOLU
SOLVE   
/STATUS,SOLU
SOLVE   
/BATCH
/COM,ANSYS RELEASE 12.0.1UP20090415       19:56:04    08/06/2012
/input,start120,ans,'D:\Program Files\ANSYS Inc\v120\ANSYS\apdl\',,,,,,,,,,,,,,,,1
/inp,g_c1,anf   
/VIEW,1,1,1,1   
! /menu,on
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE
WPSTYLE,,,,,,,,0
/REPLOT,RESIZE
!*
!*
/CWD,'F:\ansys\model_c1'
VPLOT   
!*
/NOPR   
/PMETH,OFF,0
KEYW,PR_SET,1   
KEYW,PR_STRUC,1
KEYW,PR_THERM,0
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,0
KEYW,MAGNOD,0   
KEYW,MAGEDG,0   
KEYW,MAGHFE,0   
KEYW,MAGELC,0   
KEYW,PR_MULTI,0
KEYW,PR_CFD,0   
/GO
!*
/COM,   
/COM,Preferences for GUI filtering have been set to display:
/COM,Structural   
!*
!*
ET,1,SOLID186   
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2.06e5
MPDATA,PRXY,1,,0.3
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,7.8e-9   
SMRT,6
SMRT,5
SMRT,4
MSHAPE,1,3D
MSHKEY,0
!*
CM,_Y,VOLU
VSEL, , , ,       1
CM,_Y1,VOLU
CHKMSH,'VOLU'   
CMSEL,S,_Y
!*
VMESH,_Y1   
!*
CMDELE,_Y   
CMDELE,_Y1
CMDELE,_Y2
!*
SAVE,'1','db','F:\ANSYS\MODEL_C1\'
/VIEW,1,,,1
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
/AUTO,1
/REP,FAST   
CSYS,1
NSEL,ALL
NSEL,S,LOC,X,7
/UI,MESH,OFF
NPLOT   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
CSYS,0
NSEL,ALL
NSEL,S,LOC,Z,12
NPLOT   
ALLSEL,ALL
VPLOT   
CSYS,1
NSEL,S,LOC,X,7
NPLOT   
CSYS,0
NSEL,S,LOC,Z,12
NPLOT   
ALLSEL,ALL
VPLOT   
/AUTO,1
/REP,FAST   
NSEL,S,LOC,X,7
NPLOT   
ALLSEL,ALL
VPLOT   
CSYS,1
/MREP,EPLOT
NSEL,S,LOC,X,7
NPLOT   
CSYS,0
NSEL,R,LOC,Z,12
NPLOT   
/PNUM,KP,0
/PNUM,LINE,0
/PNUM,AREA,0
/PNUM,VOLU,0
/PNUM,NODE,1
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0   
!*
/PNUM,ELEM,0
/REPLOT
!*
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
/DIST,1,0.924021086472,1
/REP,FAST   
FINISH
/SOL
FLST,2,1,1,ORDE,1   
FITEM,2,1508
!*
/GO
D,P51X, ,0, , , ,ALL, , , , ,   
RESUME
/COM,ANSYS RELEASE 12.0.1UP20090415       20:17:25    08/06/2012
/REPLOT,RESIZE
ALLSEL,ALL
EPLOT   
/AUTO,1
/REP,FAST   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
!*
ANTYPE,2
!*
!*
MODOPT,LANB,10
EQSLV,SPAR
MXPAND,10, , ,0
LUMPM,0
PSTRES,0
!*
MODOPT,LANB,10,0,0, ,OFF
!*
OUTPR,ALL,ALL,
!*
OUTRES,ALL,ALL,
SAVE
SAVE,'2','db','F:\ANSYS\MODEL_C1\'
/STATUS,SOLU
ALLSEL,ALL
/STATUS,SOLU
SOLVE   
/BATCH
/COM,ANSYS RELEASE 12.0.1UP20090415       10:17:37    08/09/2012
/input,start120,ans,'D:\Program Files\ANSYS Inc\v120\ANSYS\apdl\',,,,,,,,,,,,,,,,1
/inp,g_c1,anf   
/VIEW,1,1,1,1   
! /menu,on
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON
/CPLANE,1   
/REPLOT,RESIZE
WPSTYLE,,,,,,,,0
/REPLOT,RESIZE
VPLOT   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/AUTO,1
/REP,FAST   
/VIEW,1,1,1,1   
/ANG,1
/REP,FAST   
/VIEW,1,1,2,3   
/ANG,1
/REP,FAST   
/CWD,'F:\ansys\model_c1'
!*
/NOPR   
/PMETH,OFF,0
KEYW,PR_SET,1   
KEYW,PR_STRUC,1
KEYW,PR_THERM,0
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,0
KEYW,MAGNOD,0   
KEYW,MAGEDG,0   
KEYW,MAGHFE,0   
KEYW,MAGELC,0   
KEYW,PR_MULTI,0
KEYW,PR_CFD,0   
/GO
!*
/COM,   
/COM,Preferences for GUI filtering have been set to display:
/COM,Structural   
!*
!*
ET,1,SOLID186   
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2.06e5
MPDATA,PRXY,1,,0.28
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,7.8e-9   
SMRT,6
SMRT,7
MSHAPE,1,3D
MSHKEY,0
命令流不全，大家先看看

dujunmin 发表于 2012-8-23 23:15

我没有计算过齿轮的模态，但我认为齿轮为一实体结构，因此结构模态的确是比较大的。

赵哥们 发表于 2013-6-5 09:55

您好，您解决这个问题了吗？我的也是很大，跟实际的要差上十倍左右呢
页: [1]
查看完整版本: ansys齿轮模态分析，结果偏大，不知道正确不正确