output_control create request

Adams outputs the displacement of the I marker with respect to the J marker. This argument generates eight headings and eight columns of output. The columns include the time (Time), the translational magnitude (Mag), the x component (X), the y component (Y), the z component (Z), the psi angle (Psi), the theta angle (Theta), and the phi angle (Phi).

The psi, theta, and phi angles are the Euler angle displacements of the I marker with respect to the J marker. Adams calculates this displacement data in the global coordinate system. If you specify R_MARKER_NAME, Adams resolves the translational x component, the translational y component, and the translational z component in the coordinate system of the R marker. The R marker does not affect psi, theta, and phi.

If you enter the 'OUTPUT_CONTROL SET OUTPUT YPR=ON' command, psi, theta, and phi rotations become yaw, pitch, and roll rotations.

Rotational displacement information differs from all other standard output. Whether this information is in psi, theta, and phi coordinates or in yaw, pitch, and roll coordinates, the rotation sequence is not a vector. As a result, Adams outputs no magnitude column. In addition, the sequence of coordinates is independent of any frame external to the I and the J markers. Therefore, the R_MARKER_NAME parameter has no effect on the angular coordinates.

Adams outputs the velocity of the I marker with respect to the J marker. This argument generates nine headings and nine columns of data for velocity. The nine columns include the time (Time), the translational magnitude (Vm), the translational x component (Vx), the translational y component (Vy), the translational z component (Vz), the rotational magnitude (Wm), the rotational x component (Wx), the rotational y component (Wy), and the rotational z component (Wz).

Adams calculates this velocity data (the first derivative of the displacement of the I marker with respect to the J marker) in the global coordinate system. If you specify R_MARKER_NAME, Adams resolves the translational x component, the translational y component, the translational z component, the rotational x component, the rotational y component, and the rotational z component in the coordinate system of the R marker.

Adams outputs the acceleration of the I marker with respect to the J marker. This argument generates nine headings and nine columns of output. The columns include the time (Time), the magnitude of translational acceleration (Accm), the translational x component (Accx), the translational y component (Accy), the translational z component (Accz), the magnitude of rotational acceleration (Wmdot), the rotational x component (Wxdot), the rotational y component (Wydot), and the rotational z component (Wzdot). Adams calculates this acceleration data (the second derivative of the displacement of the I marker with respect to the J marker) in the global coordinate system. If you specify R_MARKER_NAME, Adams resolves the translational x component, the translational y component, the translational z component, the rotational x component, the rotational y component, and the rotational z component in the coordinate system of the R marker.

Adams outputs the force associated with the I and the J markers or, if only the I marker is given, outputs the action-only forces on the I marker. When both, the I and the J markers are given, Adams sums the forces on the I marker of those forces associated with the I and the J markers. These forces can include both, applied forces (such as SPRINGDAMPERs and BUSHINGs) and reaction forces from constraint elements (such as JOINTs and MOTIONs). When only the I marker is given, Adams sums all of the action-only forces that are applied to the I marker. Adams reports the components of the resulting vectors in the reference frame of the R marker if you specify R_MARKER_NAME.

If you do not specify R_MARKER_NAME, Adams reports the components in the ground reference frame. This argument generates nine columns of output. The columns include the time, the translational force magnitude, the three components of the translational force, the rotational force (torque) magnitude, and the three components of the torque.

Applied forces and torques are those generated by beams, bushings, fields, single-component forces, and spring-dampers. Adams outputs the applied forces and torques acting at the request I marker (which may be either the applied force I marker or the applied force J marker). The magnitude and point of force application on the part containing the applied force J marker varies according to the type and source of the force. For spring-dampers and action-reaction single-component forces, the forces and torques acting at the J marker are equal and opposite to the forces and torques acting at the I marker. For action-only single-component forces, there is no force or torque acting at the applied force J marker. For beams, fields, and bushings, the forces acting at the applied force J marker are equal and opposite to the forces acting at the applied force I marker. As long as the applied force I marker and the applied force J marker are coincident, the torques acting at the applied force J marker are equal and opposite to the torques acting at the applied force I marker. If there is a finite separation between the I and the J markers, the torques acting at the applied force J marker are opposite, but not equal, to the torques acting at the applied force I marker.

Reaction forces and torques are those generated by constraint-inducing elements. For revolute, spherical, and universal joints and for atpoint, orientation, parallel axes, and perpendicular joint primitives, Adams outputs the reaction forces and torques acting at the request I marker (which may be either the constraint I marker or the constraint J marker). The force and torque acting at the request J marker are equal and opposite to the force and torque acting at the request I marker. Depending on the type of constraint, some or all of the torques acting at the I marker are zero.

You must be careful when requesting a force with the I and the J markers reversed from those specified in the force-producing element. Adams reports the force as if it were applied to the J marker of the force-producing element. The translational force on the J marker of the force element will be equal and opposite to the translational force on the I marker of the force element if it is not action only. The force will be zero if it is action only. The torque on the J marker of the force element has an extra component that may have significance. The torque is the sum of two contributions. The first contribution is the opposite of the torque on the I marker. The second contribution is due to the force acting across the separation between the I and the J markers. If the force acts along the line of sight of the two markers, this extra torque will be zero. To minimize misunderstandings, attach your REQUEST markers in the same order as the markers on the force-producing element.

Adams will output the values computed by the user-written subroutine REQSUB. If you choose a USER request type, you must also supply the USER_FUNCTION parameter to define the constants Adams will pass to the REQSUB.