The Rotational Elasto-Backlash 2 component consists of a backlash element connected in series with a spring and damper elements which are connected in parallel. The spring constant must be positive.
In the backlash region no torque is exerted. Outside this region, contact is present and the contact torque is computed with a linear spring/damper characteristic.
If the backlash parameter is smaller than , the backlash is ignored and the component reduces to a spring/damper element in parallel.
During initialization, the backlash characteristic is replaced by a continuous approximation in the backlash region.