以下是我計算的電機(jī)轉(zhuǎn)子臨界轉(zhuǎn)速的程序，不知道有沒有問題
FINISH
/CLEAR,NOSTART
/FILNAME,BEAM4
/TITLE,BEAM4,62MOTOR
/PREP7
ET,1,BEAM4
MP,EX,1,210E9
MP,DENS,1,7800
MP,PRXY,1,0.3
R,1,0.5027E-4,0.0201E-8,0.0201E-8,0.008,0.008 ！六種截面參數(shù)
R,2,0.7854E-4,0.0491E-8,0.0491E-8,0.01,0.01
R,3,1.7671E-4,0.2485E-8,0.2485E-8,0.015,0.015
R,4,0.3848E-4,0.0118E-8,0.0118E-8,0.007,0.007
R,5,0.9195E-4,0.0673E-8,0.0673E-8,0.01082,0.01082
R,6,1.7671E-4,0.2485E-8,0.2485E-8,0.015,0.015
N,1
N,13,0.012
FILL
N,14,0.017
N,16,0.027
FILL
N,17,0.032
N,29,0.044
FILL
REAL,1
E,1,2
EGEN,3,1,1
E,26,27
EGEN,3,1,4
REAL,2
E,4,5
E,5,6
E,24,25
E,25,26
REAL,3
E,6,7
E,7,8
E,8,9
E,21,22
E,22,23
E,23,24
REAL,4
E,9,10
E,10,11
E,19,20
E,20,21
REAL,5
E,11,12
E,12,13
E,17,18
E,18,19
REAL,6
E,13,14
EGEN,4,1,25
/ESHAPE,1
EPLOT
FINISH
/SOLU
ANTYPE,MODAL
D,1,UX ！1，29為兩個端點，為軸承處
D,1,UY
D,1,UZ
D,29,UX
D,29,UY
D,29,UZ
以下采用gui操作，模態(tài)擴(kuò)展為四階
ansys計算結(jié)果和理論計算誤差為0.33%
沒有考慮陀螺效應(yīng)，不知道對不對，請高手指點。