Maxwell_v16_3D_WS06_BasicTransient_RotationalMotion.pdfVIP

? 2013 ANSYS, Inc. May 21, 2013 1 Release 14.5 Workshop 6: Basic Transient Rotational Motion ANSYS Maxwell 3D V16 ? 2013 ANSYS, Inc. May 21, 2013 2 Release 14.5 About Workshop ? Large Rotational Motion – Maxwell Transient solver can consider interactions between transient electromagnetic fields and mechanical motion of objects. – Maxwell Transient (with motion) includes dB /dt arising from mechanically moving magnetic fields in space, i.e. moving objects. Thus, effects coming from so-called motion induced currents can be considered. – Rotational motion can occur around one single motion axis. – This workshop represents a quick start to using rotational motion. It will exercise rotational motion in Maxwell 3D using a rotational actuator (experimental motor) example. Workshop consists of three parts Example1: Large Rotational Standstill Example2: Large Rotational Constant Speed Example3: Large Rotational Transient Motion ? 2013 ANSYS, Inc. May 21, 2013 3 Release 14.5 Rotational Large Motion ? The Maxwell Approach – Maxwell separates moving from non-moving objects. – All moving objects must be enclosed by one so-called band object. – For rotational motion, the band object must be cylindrical – Maxwell considers all moving objects (inside the band) to form one single moving object group. – Constant Speed mode: ? If the model is setup to operate in constant speed mode, Maxwell will not compute mechanical transients. ? However, changing magnetic fields owing to speed wm, i. e. dB/dt effects are included in the field solution. – Mechanical Transient mode: ? In case inertia was specified, Maxwell will compute the motion equation in each time step. Jm · d2jm(t) / dt2 + kD(t) · djm(t) / dt = Ty(t) + Tm(t) ? 2013 ANSYS, Inc. May 21, 2013 4 Release 14.5 Open Input File ? Open the file – Select the menu item File ? Open – Browse to the file WS6_BasicTransient_RotationalMotion.mxwl and open it – Prior to employi