1 line
2.7 KiB
C++
Executable file
1 line
2.7 KiB
C++
Executable file
void REDUCT (MatBand & TRAID,int LB,int NDDL,Vecteur& CC)
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//C ======================================================================
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//C reduction de la matrice de raideur avant resolution
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//c $
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//C ======================================================================
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// REAL*8 TRAID(LB,*)
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// DIMENSION CC(NDDL)
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{ int I,NI,JJ,KK;
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TRAID(LB,1)=1.D0/TRAID(LB,1);
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for ( NI=2; NI<=NDDL ;NI++)
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{if (NI <= LB)
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{CC(1)=TRAID(LB-NI+1,NI);
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if (NI> 2)
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{ for (JJ=2; JJ<=NI-1; JJ++)
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{ C=TRAID(LB-NI+JJ,NI);
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for (KK=1; KK<= JJ-1; KK++)
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C=C-CC(KK)*TRAID(LB-JJ+KK,JJ);
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CC(JJ)=C;
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}
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}
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I=1;
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for (JJ=LB-NI+1;JJ<=LB-1; JJ++)
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{ TRAID(JJ,NI)=CC(I)*TRAID(LB,I);
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I=I+1;
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}
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D=TRAID(LB,NI);
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for(KK=1;KK<=NI-1;KK++)
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D=D-CC(KK)*TRAID(LB-NI+KK,NI);
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}
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else
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{
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CC(1)=TRAID(1,NI);
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for (JJ=2;JJ<=LB-1;JJ++)
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{ C=TRAID(JJ,NI);
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for (KK=1;KK<=JJ-1;KK++)
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C=C-CC(KK)*TRAID(KK+LB-JJ,NI-LB+JJ);
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CC(JJ)=C;
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}
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I=1;
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for (JJ=1;JJ<=LB-1;JJ++)
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{ TRAID(JJ,NI)=CC(I)*TRAID(LB,NI-LB+JJ);
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I=I+1;
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}
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D=TRAID(LB,NI);
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for (KK=1;KK<=LB-1;KK++)
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D=D-CC(KK)*TRAID(KK,NI);
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}
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TRAID(LB,NI)=1.D0/D;
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}
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}
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// **********************************************************************
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void RESOLT(MatBand & TRAID,Vecteur & TSM,int NDDL,int LB)
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{
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// DIMENSION TRAID(LB,1),TSM(1)
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//---------------------------execution ---------------------------
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int NI,JJ;
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for (NI=2;NI<=NDDL;NI++)
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{ if (NI<=LB)
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{ R=TSM(NI);
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for (JJ=LB-NI+1;JJ<=LB-1;JJ++)
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R=R-TRAID(JJ,NI)*TSM(NI-LB+JJ);
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TSM(NI)=R;
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}
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else
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{
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R=TSM(NI);
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for (JJ=1;JJ<=LB-1;JJ++)
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R=R-TRAID(JJ,NI)*TSM(NI-LB+JJ);
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TSM(NI)=R;
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}
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}
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//
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for( NI=1;NI<=NDDL;NI++)
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TSM(NI)=TSM(NI)*TRAID(LB,NI);
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//
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for (NI=1;NI<=NDDL-1;NI++)
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{ NII=NDDL-NI;
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if (NI+1<=LB)
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{ R=TSM(NII);
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for (JJ=1;JJ<=NI;JJ++)
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R=R-TRAID(LB-JJ,NII+JJ)*TSM(NII+JJ);
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TSM(NII)=R;
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}
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else
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{
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R=TSM(NII);
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for (JJ=1;JJ<=LB-1;JJ++)
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R=R-TRAID(LB-JJ,NII+JJ)*TSM(NII+JJ);
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TSM(NII)=R;
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}
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}
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} |