FIXSPRROT

This command fixes the rotational degrees of freedom of all the elements that are connected to only springs and springs/solid node connections. If the node is only connected to a spring the fixed degrees of freedom are determined by the spring stiffness. If the node is connected to springs and solids the rotation degrees of freedom are determined by the springs rotational stiffness. This command in combination with FIXSHLROT, and FIXSLDROT is an alternate to FIXROT that more closely approximates stiffness matrix for a models that are generated by ANSYS®.