4.8.3.54. GET_RFLEX_VEL
The GET_RFLEX_VEL subroutine returns RFlex Body velocity. GET_RFLEX_VEL is an auxiliary subroutine for MODAL_FORCE_EXT.
Language type |
Subroutine |
FORTRAN |
call get_rflex_vel(ifbody, vel, errflg) |
C/C++ |
get_rflex_vel(ifbody, vel, &errflg) |
Variable Name |
Size |
Description |
ifbody |
int |
Sequential id of RFlex body defined in RecurDyn/Solver. |
VEL |
double[6] |
An array of double precision type. The array size must be 6. First 3 values mean a translational velocity vector, and remain values mean a rotational velocity vector.This value is calculated with respect to global reference frame. |
Errflg |
int |
Error flag.
If the result of this argument is -1
(means TRUE in Fortran logical value),
there is no error.
The others mean that there is an error.
|
#include "stdafx.h"
#include "DllFunc.h"
#include <stdio.h>
FILE* VELwrite;
double pretime;
RecurDyn_UserSubRoutineWizard7_API void __cdecl modal_force_ext
(int id, double time, double upar[], int npar, int ifbody, int nodarr[], int nonde, int jflag, int iflag, double result[])
{
using namespace rd_syscall;
// Parameter Information
// id : Modal force sequential identification. (Input)
// time : Simulation time of RD/Solver. (Input)
// upar : Parameters defined by user. (Input)
// npar : Number of user parameters. (Input)
// ifbody : RFLEX Body sequential ID. (Input)
// nodarr : Node ID array of input node set. (Input)
// nonde : Number of node of node set. (Input)
// jflag : When RD/Solver evaluates a Jacobian, the flag is true. (Input)
// iflag : When RD/Solver initializes arrays, the flag is true. (Input)
// result : Returned nodal force vector. Acting point of the nodal force is each center of each node.
// Reference frame of each force vector must be Ground.InertiaMarker. (Output, Size: nonde * 6)
// User Statement
int errflg =0 , ifinish = 0;
double vel[6];
if (iflag)
{
VELwrite=fopen("RFlexBodyVel_C.txt","w");
fprintf(VELwrite,"RFlex Body Velocity \n");
}
if(!jflag && VELwrite!= NULL && pretime !=time)
{
for (int i = 0; i<6 ;i++)
{
vel[i]=0.0;
}
get_rflex_vel(ifbody,pos,&errflg);
fprintf(VELwrite,"TIME = %20.10e \n",time);
fprintf(VELwrite,"Translational Velocity \n");
fprintf(VELwrite,"VX = %20.10e\n",vel[0]);
fprintf(VELwrite,"VY = %20.10e\n",vel[1]);
fprintf(VELwrite,"VZ = %20.10e\n",vel[2]);
fprintf(VELwrite,"Ratational Velocity \n");
fprintf(VELwrite,"WX = %20.10e\n",vel[3]);
fprintf(VELwrite,"WY = %20.10e\n",vel[4]);
fprintf(VELwrite,"WZ = %20.10e\n",vel[5]);
}
getfinishflag(&ifinish);
if(ifinish)
{
fclose(VELwrite);
}
for(int i=0;i<6*nonde;i++)
{
result[i] = 0.0;
}
pretime = time;
}