Trapezoidal Leadscrew

In Gear AT one can define trapezoidal lead screw gear set. In current release you can define a thread profile from scratch using embedded profile generator. The first step is to input all geometrical parameters in the shape definition step of Gear AT preprocessing which generates thread profile and stores all geometrical data in a gear property file (*.TLP). This is used as input for meshing and for definition of lead screw spindle and nut modeling element. Next step is to generate FE meshes, run Nastran SOL 101 and extract stiffness matrix to a gear stiffness file (*.TLS), which is then referenced for lead screw gear force definition.