Simulation of Induction Motors with Two Degrees of Mechanical Freedom

Induction Motors with Rotor Helical Motion

“…These motors, which are able effectively generate torque and axial force in a suitably controllable way, are capable of producing pure rotary motion, pure linear motion or helical motion and constitute one of the most interesting topologies of multi-degree-of freedom machines (Bolognesi et al, 2004). Some examples of such actuators have already been the subject of studies or patents (Mendrela et al, 2003, Giancarlo & Tellini, 2003, Anorad, 2001. A typical rotary-linear motor with twin-armature is shown in Fig.…”

“…The motor with a rotor rectangular grid-cage winding is another version that can be considered. (Mendrela et al, 2003).…”

“…Several topologies of electromagnetic motors featuring a multi-DoMF structure were investigated in the technical literatures (Mendrela et al, 2003. Considering the geometry, three classes of motors can be distinguished:  X-Y motors -flat structure  Rotary-linear motor -cylindrical geometry  Spherical motors -spherical geometry…”

“…The basic and most comprehensive research on IM-2DoMF is contained in the book (Mendrela et al, 2003). The analysis of these motors is based on theory of the induction motors whose magnetic field is moving in the direction determined by two space coordinates.…”

“…This line segment that forms the F u characteristic is a set of points where the following equation is fulfilled: Figure 12. Determination of the operating point A of the machine set with IM-2DoMF (Mendrela et al, 2003).…”