ANSYS转子动力学--单盘转子的临界转速分析

R1=0.03
R2=0.08
H=0.005
SPIN=10000/60*2*3.1415 !把转速的单位转换为弧度/秒
/PREP7
ET,1,SHELL181
MP,EX,1,2.1E11
MP,PRXY,1,0.3
MP,DENS,1,7000

SECT,1,SHELL,,
SECDATA, H,1,0.0,5
SECOFFSET,MID
PCIRC,R2,R1,0,360,
ESIZE,0.003
AMESH,ALL
/SOLU
ANTYPE,MODAL
MODOPT,QRDAMP,30,,,ON!! 使用QR阻尼法提取30阶固有频率，并计算复数模态振型
QRDOPT,ON !! REUSEKEY=ON
MXPAND,30

CSYS,1
NSEL,ALL
NSEL,S,LOC,X,R1
CSYS,0
D,ALL, , , , , ,UX,UY,UZ,ROTX,ROTY,
ALLSEL,ALL

CORIOLIS,ON,,,ON !在固定坐标系中考虑陀螺效应

OMEGA,,,0.1 !!
SOLVE
*DO,I,1,15
OMEGA,,,8*SPIN/15*I
SOLVE
*ENDDO

! *** CAMPBELL DIAGRAM
/POST1
PRCAMP,,1,RPM
PLCAMP,,1,RPM
*GET,CRIC1,CAMP,1,VCRI,,,
*GET,CRIC2,CAMP,2,VCRI,,,
*GET,CRIC3,CAMP,3,VCRI,,,
finish