关于滑动轴承承载力的求解
已知压力分布求解承载力的大小。源代码:
PROGRAM GASJOURNAL
DIMENSION H(61,61),P(61,61),Y(61),X(61)
DATA B,R,C0,AN,PA,EDA,EPSON/60.0E-3,25.0E-3,5.0E-5,6.0E4,1.013E5,1.79E-5,0.8/
OPEN(8,FILE='PRESSURE.DAT',STATUS='UNKNOWN')
OPEN(9,FILE='HIGHT.DAT',STATUS='UNKNOWN')
OPEN(11,FILE='LOAD.DAT',STATUS='UNKNOWN')
PI=3.1415926
N=61
N1=N-1
M=61
M1=M-1
DX=2.0*PI/N1
DY=2.0/M1
OMEGA=AN*2.0*PI/60
U=OMEGA*R
ALENDA=6.0*EDA*U*R/PA/C0**2
ALFA=(R/B*DX/DY)**2
SUM1=0.0
S=D*B
CALL SUBH (N,M,DX,EPSON,H)
CALL SUBP (N,M,DX,EPSON,ALFA,ALENDA,H,P)
CALL SUBM(N,M,P)
ALENDA=6.0*EDA*U*R/PA/C0**2
SUM1=ALENDA*S*SUM1
DO I=1,N
X(I)=(I-1)*DX
ENDDO
DO J=1,M
Y(J)=(J-1.0)*DY-0.5
ENDDO
WRITE(8,40)Y(1),(Y(J),J=1,M)
DO I=1,N
WRITE(8,40)X(I)*180.0/PI,(P(I,J),J=1,M)
ENDDO
WRITE(9,40)Y(1),(Y(J),J=1,M)
DO I=1,N
WRITE(9,40)X(I)*180.0/PI,(H(I,J),J=1,M)
END DO
!WRITE(8,40)AX,(H(I,J),J=1,M)
!WRITE(9,40)AX,(P(I,J),J=1,M)
WRITE(11,*) '承载力=',SUM1
40FORMAT(62(E12.6,1X))
STOP
END
SUBROUTINE SUBH(N,M,DX,EPSON,H)
DIMENSION H(N,M)
DO I=1,N
SETA=(I-1.0)*DX
DO J=1,M
H(I,J)=1.0+EPSON*COS(SETA)
ENDDO
ENDDO
RETURN
END
SUBROUTINE SUBP(N,M,DX,EPSON,ALFA,ALENDA,H,P)
DIMENSION H(N,M),P(N,M)
DO I=2,N-1
DO J=2,M-1
P(I,J)=1.1
ENDDO
ENDDO
DO I=1,N
P(I,1)=1.0
P(I,M)=1.0
ENDDO
DO J=1,M
P(1,J)=1.0
P(N,J)=1.0
ENDDO
IK=0
10 C1=0.0
ALOAD=0.0
DO I=2,N-1
I1=I-1
I2=I+1
DO J=2,M-1
J1=J-1
J2=J+1
PD=P(I,J)
A1=H(I,J)**3+(3*H(I,J)**2*(H(I2,J)-H(I1,J))/4)
A2=H(I,J)**3-(3*H(I,J)**2*(H(I2,J)-H(I1,J))/4)
A3=2*H(I,J)**3*(1+ALFA)
A4=ALFA*(H(I,J)**3+(3*H(I,J)**2*(H(I,J2)-H(I,J1))/4))
A5=ALFA*(H(I,J)**3-(3*H(I,J)**2*(H(I,J2)-H(I,J1))/4))
A6=(ALENDA*DX/2)*(P(I,J)*(H(I2,J)-H(I1,J))+ H(I,J)*(P(I2,J)-P(I1,J)))
P(I,J)=(A1*P(I2,J)**2+A2*P(I1,J)**2+A4*P(I,J2)**2+A5*P(I,J1)**2-A6)/A3
!A1=(0.5*(H(I2,J)+H(I,J)))**3
!A2=(0.5*(H(I,J)+H(I1,J)))**3
!A3=ALFA*(0.5*(H(I,J2)+H(I,J)))**3
!A4=ALFA*(0.5*(H(I,J)+H(I,J1)))**3
!P(I,J)=(-DX*ALENDA*(P(I+1,J)*H(I+1,J)-P(I-1,J)*H(I-1,J))+A1*P(I2,J)**2+A2*P(I1,J)**2+A3*P(I,J2)**2+A4*P(I,J1)**2)/(A1+A2+A3+A4)
IF(P(I,J).LT.0.0)P(I,J)=0.0
P(I,J)=SQRT(P(I,J))
P(I,J)=0.7*PD+0.3*P(I,J)
IF(P(I,J).LT.0.0)P(I,J)=0.0
C1=C1+ABS(P(I,J)-PD)
ALOAD=ALOAD+P(I,J)
ENDDO
ENDDO
IK=IK+1
C1=C1/ALOAD
WRITE(*,*)IK,C1,ALOAD
IF(C1.GT.1.E-7)GOTO 10
RETURN
END
SUBROUTINE SUBM(N,M,P)
DIMENSION P(N,M)
PX=0
PY=0
DO I=1,N
AI=(I-1)*DX
DO J=1,M
PX=PX-(P(I,J)-1)*COS(AI)*DX*DY
PY=PY+(P(I,J)-1)*SIN(AI)*DX*DY
ENDDO
ENDDO
SUM1=SQRT(PX*PX+PY*PY)
RETURN
END
这是问什么? necrohan 发表于 2021-4-27 08:45
这是问什么?
程序没有报错,但是出来的承载力不对,怎么能求出承载力呀 necrohan 发表于 2021-4-27 08:45
这是问什么?
您好,我的程序求出来了压力分布然后怎么求解承载力的大小呀? 780782578 发表于 2021-4-27 11:08
您好,我的程序求出来了压力分布然后怎么求解承载力的大小呀?
这个你要问专业人员,不是该专业的不清楚
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