Modello analitico AG-Rotativo

In this report a new concept of piezo-stepper is presented, based on the precession of a moving deformable ring by inducing a travelling deformation wave, piloted by an innovative friction-based clamping mechanism. The working principle of the proposed piezomotor refuses any existing classification: at one side it is based on a travelling wave schema, on the other side the traveling wave is quasistatic and it is obtained by a stepping mechanism. The new motor has been patented by the authors Cau and Bonfiglio: it promises improved performance in terms of precision, torque/mass ratio and several prototypes have been built showing the feasibility of the concept.