lgmini_rby.F

Go to the documentation of this file.

Copyright>        OpenRadioss
Copyright>        Copyright (C) 1986-2025 Altair Engineering Inc.
Copyright>
Copyright>        This program is free software: you can redistribute it and/or modify
Copyright>        it under the terms of the GNU Affero General Public License as published by
Copyright>        the Free Software Foundation, either version 3 of the License, or
Copyright>        (at your option) any later version.
Copyright>
Copyright>        This program is distributed in the hope that it will be useful,
Copyright>        but WITHOUT ANY WARRANTY; without even the implied warranty of
Copyright>        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Copyright>        GNU Affero General Public License for more details.
Copyright>
Copyright>        You should have received a copy of the GNU Affero General Public License
Copyright>        along with this program.  If not, see <https://www.gnu.org/licenses/>.
Copyright>
Copyright>
Copyright>        Commercial Alternative: Altair Radioss Software
Copyright>
Copyright>        As an alternative to this open-source version, Altair also offers Altair Radioss
Copyright>        software under a commercial license.  Contact Altair to discuss further if the
Copyright>        commercial version may interest you: https://www.altair.com/radioss/.
!||====================================================================
!||    lgmini_rby             ../starter/source/tools/lagmul/lgmini_rby.F
!||--- called by ------------------------------------------------------
!||    initia                 ../starter/source/elements/initia/initia.F
!||--- calls      -----------------------------------------------------
!||    ancmsg                 ../starter/source/output/message/message.F
!||    fretitl2               ../starter/source/starter/freform.F
!||--- uses       -----------------------------------------------------
!||    message_mod            ../starter/share/message_module/message_mod.F
!||====================================================================
      SUBROUTINE lgmini_rby(NPBYL  ,LPBYL  ,RBYL   ,MASS   ,INER   ,
     .                      X      ,V      ,VR     ,ITAB   ,NOM_OPT)
      USE message_mod
      USE names_and_titles_mod , ONLY : nchartitle
C----------------------------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "param_c.inc"
#include      "lagmult.inc"
#include      "com04_c.inc"
#include      "scr17_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER NPBYL(NNPBY,*), LPBYL(*), ITAB(*)
      my_real rbyl(nrby,*),mass(*),iner(*),x(3,*), v(3,*), vr(3,*)
      INTEGER NOM_OPT(LNOPT1,*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I,J,N,NN,M,IK,IC,MSL,NSL,TNSL,ICDG
      my_real rx,ry,rz,masrb
      INTEGER ID
      CHARACTER(LEN=NCHARTITLE) :: TITR
C======================================================================|
      tnsl = 0
      DO n=1,nrbylag
        m    = npbyl(1,n)
        msl  = npbyl(2,n)
        icdg = npbyl(3,n)
        nsl  = msl - 1
        mass(m) = mass(m) + rbyl(1,n)
        iner(m) = iner(m) + rbyl(2,n)
        id=nom_opt(1,nrbykin+n)
        CALL fretitl2(titr, nom_opt(lnopt1-ltitr+1,nrbykin+n),ltitr)
        IF(mass(m)==zero.OR.iner(m)==zero) THEN
           CALL ancmsg(msgid=273,
     .                 msgtype=msgwarning,
     .                 anmode=aninfo_blind_1,
     .                 i1=id,
     .                 c1=titr)
        ENDIF
        IF(mass(m)==zero) mass(m)= em15
        IF(iner(m)==zero) iner(m)= em15
C-----  CORRECTION DE LA CENTRE DE GRAVITE DU MAIN
        IF(icdg==1)THEN
C-----    CDG TOTAL
          masrb = mass(m)
          DO j=1,3
            x(j,m)=x(j,m)*mass(m)
          ENDDO
          DO i=1,nsl
            nn = lpbyl(tnsl+i)
            DO j=1,3
             x(j,m) = x(j,m)+x(j,nn)*mass(nn)
            ENDDO
            masrb   = masrb+mass(nn)
          ENDDO
          IF(masrb<=em30) THEN
            CALL ancmsg(msgid=273,
     .                  msgtype=msgwarning,
     .                  anmode=aninfo_blind_1,
     .                  i1=id,
     .                  c1=titr)
            RETURN
          ENDIF
          DO j=1,3
            x(j,m)=x(j,m)/masrb
          ENDDO
        ELSEIF(icdg==2)THEN
C-----    CDG DES NOEUDS SECONDS
          masrb=zero
          DO j=1,3
            x(j,m)=zero
          ENDDO
          DO i=1,nsl
            nn = lpbyl(tnsl+i)
            DO j=1,3
             x(j,m) = x(j,m)+x(j,nn)*mass(nn)
            ENDDO
            masrb   = masrb+mass(nn)
          ENDDO
C
          IF(masrb<=em30) THEN
            CALL ancmsg(msgid=273,
     .                  msgtype=msgwarning,
     .                  anmode=aninfo_blind_1,
     .                  i1=id,
     .                  c1=titr)
            RETURN
          ENDIF
          DO j=1,3
            x(j,m)=x(j,m)/masrb
          ENDDO
          masrb=masrb+mass(m)
        ENDIF
        IF(mass(m)==zero.OR.iner(m)==zero) THEN
           CALL ancmsg(msgid=679,
     .                 msgtype=msgerror,
     .                 anmode=aninfo_blind_1,
     .                 i1=id,
     .                 c1=titr,
     .                 c2='ON MAIN NODE')
        ENDIF
        tnsl = tnsl + 3*msl
      ENDDO
C-----------
      RETURN
      END