D3PLOT 22.1

The Nodal Data Components Available from the .ptf File

The nodal data components available from the .PTF file

Undeformed coordinates

BX_BASIC_X_COORD BY_BASIC_Y_COORD BZ_BASIC_Z_COORD

Current coordinates

CX_CURRENT_X_COORD CY_CURRENT_Y_COORD CZ_CURRENT_Z_COORD

Displacements (Derived from <current> - <undeformed>)

DX_X_DISPLACEMENT

DR_DISP_RESULTANT

DY_Y_DISPLACEMENT DZ_Z_DISPLACEMENT

Velocities

VX_X_VELOCITY

VR_VEL_RESULTANT

VY_Y_VELOCITY VZ_Z_VELOCITY

Accelerations

AX_X_ACCELERATION

AR_ACCEL_RESULTANT

AY_Y_ACCELERATION AZ_Z_ACCELERATION

Relative Rotations (Derived from <current> and <undeformed>)

RDXR_X_ROTATION_REL

RDRR_R_ROTATION_REL

RDYR_Y_ROTATION_REL RDZR_Z_ROTATION_REL

Relative rotation is calculated as the rotation of the position of a node, i.e. ignoring any nodal rotation, about the defined axis. The axis is taken from the reference node definition (see REFERENCE_NODES Calculating results with respect to one or three nodes ).

If no reference node definition is switched on then the relative rotations will be calculated about the global axis directions through the origin.

If a single reference node is defined then the relative rotations will be calculated about the global axis directions through the reference node.

If three reference nodes are defined then the axis about which relative rotations are calculated depends on whether results are set to be in "Global" or "Local (N1..3)" on the Ref node panel. With "Global" set behaviour is the same as for a single reference node, i.e. relative rotations will be calculated about the global axis directions through N1. With "Local (N1..3)" set relative rotations will be calculated about the local axis directions through N1.