URDFIL combine with DLOAD 1

[Canic]

Please help,
Objective of the project: is to calculate vehicle-structure interaction. So technically, the DLOAD Force will be depended on the displacement of the node from the previous increment.

      SUBROUTINE DLOAD(F,KSTEP,KINC,TIME,NOEL,NPT,LAYER,KSPT,
     1 COORDS,JLTYP,SNAME)
C
      INCLUDE 'ABA_PARAM.INC'
C
      DIMENSION TIME(2), COORDS (3)
      CHARACTER*80 SNAME
C
	  X0 = 0.25! Initial position of the crane center
	  GB = 2.6! Initial position of the crane center
	  TG = 1! Initial position of the crane center
	  BB = 0.5! Initial position of the crane center
	  V = 28! m/s speed of crane
	  XL = 0.5 !lentgth of crane
	  W = F!N crane weight
C	  
	  ! Position of the crane center
	  Xcenter = X0 + V*TIME(1)
	  Ycenter1 = GB/2 - TG/2
	  Ycenter2 = GB/2 + TG/2
	  
	  ! Calculating F
	  X  = COORDS (1)
	  Y  = COORDS (2)
	  F  = 0.0
	  if (X>(Xcenter-XL/2.0) .and. X < (Xcenter+XL/2.0) .and. Y > (Ycenter1-BB/2.0) .and. Y < (Ycenter1+BB/2.0)) then
	  F = 170000/BB/BB
	  write(*,*) NOEL,F
	  End if
	  if (X>(Xcenter-XL/2.0) .and. X < (Xcenter+XL/2.0) .and. Y > (Ycenter2-BB/2.0) .and. Y < (Ycenter2+BB/2.0)) then
	  F = 170000/BB/BB
	  End if
	  
  
	  
      RETURN
      END

Can anybody know how to obtain the global node on the following script of DLOAD, so that I can make a common block for the URDFIL to extract the displacement and velocity of the global node?

Thank you in advance
Best Regards
Cank

 

[FEA way]

Maybe the UAMP subroutine with sensors would let you achieve this.

 

[Canic]

Dear FEA Way,

thank you for the response. For UAMP, I have not yet used it . If you dont mind, would you give some example?
Thank you once again,
Cank

 

[FEA way]

I don't have any examples other than those in Abaqus documentation - the "UAMP" chapter of the Verification guide and the "Crank mechanism" chapter of the Examples Problems guide.