本例介绍了对一个复杂结构—斜齿圆柱齿轮模型的创建方法，以及利用ANSYS对其进行固有频率和振型研究即模态分析的方法、步骤和过程。

APDL:

/CLEAR,NOSTART
/FILNAME,EXAMPLE11/PREP7
ET,1,SOLID45
MP,EX,1,2E11
MP,PRXY,1,0.3
MP,DENS,1,7800
K,1,21.87E-3
K,2,22.82E-3,1.13E-3
K,3,24.02E-3,1.47E-3
K,4,24.62E-3,1.73E-3
K,5,25.22E-3,2.08E-3
K,6,25.82E-3,2.4E-3
K,7,26.92E-3,3.23E-3
K,8,27.11E-3
BSPLIN,2,3,4,5,6,7
LSYMM,Y,1
LARC,2,9,1
LARC,7,10,8
AL,ALL
CSYS,1 ! 柱坐标
VEXT,1,,,0,18.412,20E-3
VGEN,24,1,,,0,360/24
CSYS,0
CYL4,0,0,10E-3,0,26.37E-3,360,20E-3
BLOCK,-3E-3,3E-3,0,12.8E-3,0,20E-3
VSBV,25,ALL
SMRTSIZE,9
ESIZE,0.002
MSHAPE,1
MSHKEY,0
VMESH,ALL
CSYS,1
NSEL,S,LOC,X,0.01
NROTAT,ALL
D,ALL,UX
ALLSEL,ALL
FINISH/SOLU
ANTYPE,MODAL
MODOPT,LANB,5
MXPAND,5
DA,208,UX
NSEL,S,LOC,Z,0
NSEL,A,LOC,Z,20E-3
NSEL,R,LOC,X,0,15E-3
D,ALL,UZ
ALLSEL,ALL
SOLVE
FINISH/POST1
SET,LIST
FINISH

 作者：XuJC