The VFORCE function returns the component comp of the force in VFORCE/id in the coordinate system of marker rm. If jflag is set to zero, Adams Solver (FORTRAN) returns the value of force/torque that acts on the I marker of VFORCE/id. If jflag is set to 1, Adams Solver (FORTRAN) returns the value that acts on the J marker. To obtain results in the global coordinate system, you can specify rm as zero.
Format
VFORCE (id, jflag, comp, rm)
Arguments
id | An integer specifying the identification number of the VFORCE. |
jflag | An integer flag specifying the VFORCE connectivity marker at which the forces and torques are computed.
0 = forces and moments at the I marker
1 = forces and moment at the J marker |
comp | An integer value that specifies the component of the VFORCE that is returned.
1 = Magnitude of the force
2 = x component of the force
3 = y component of the force
4 = z component of the force
5 = Magnitude of the torque
6 = x component of the torque
7 = y component of the torque
8 = z component of the torque |
rm | The coordinate system in which the results are expressed.
Set rm = 0 if you want to return the results in the global coordinate system. |
Examples
MARKER/236, QP=4,6,7, EU=90D,90D,0, PART=23
MARKER/169, PART=16, FLOATING
MARKER/168, QP=1,2,3, EU=30D,45D,60D, PART=16
VFORCE/19, I=236, JFLOAT=169
,FX=-10*VX(236,168,168,168)/
,FY=-10*VY(236,168,168,168)/
,FZ=-10*VZ(236,168,168,168)
REQUEST/1
,F2=VFORCE(23,0,2,0)/s
This REQUEST statement contains the x-component of the force exerted by VFORCE/19 calculated in the coordinate system of Marker 168.