Dynamic FE analysis of quasi-axisymmetrical electromechanical converters

Low Frequency Axial Flux Linear Oscillating Electric Drive Suitable for Short Strokes

“…In [6,7] magnetic field analysis for tubular motors has been presented for mostly flat induction motors. In [5,8,9] the field circuit models have also been applied for simulation of dynamic characteristics of the tubular motors. However, the investigations did not include the permanent magnet axial flux type linear oscillating motors (PMLOMs).…”

Influence of the core saturation on the dynamic performance of the magnetostrictive actuator

“…During the capacitors discharging, the electromagnetic field in the actuator is voltage-excited, and this means that the capacitor voltage u c (t) and winding current i(t) are not known in advance [4,9,10,11]. Therefore the field-circuit model of electromagnetic phenomena had to be applied.…”

“…The numerical implementation is based on the FE method and "step by step", CrackNicholson scheme [9]. At the n-th time-step, system of FEM equations can be written as…”

“…short response time is very often required [6,9]. In the most commonly used electromagnetic actuators the response time is of the order of millisecond up to hundred milliseconds [7,9]. Therefore, the new structures in which force is generated by exploitation of other phenomena than those resulting from the interaction between a magnetic field and ferromagnetic elements are proposed [2,12].…”

“…short response time is very often required [6,9]. In the most commonly used electromagnetic actuators the response time is of the order of millisecond up to hundred milliseconds [7,9].…”