Accurate electromechanical representation of a permanent magnet linear actuator using 3D finite element analysis

The increasing performance of simulation platforms coupled to the development of sophisticated numerical analysis tools makes more and more possible an approach to modelling complex electromagnetic devices in an innovative way, alternative to the well consolidated trial and error procedure, based mainly on analytical approaches, experience and prototyping. The design of electromagnetic actuators can be considered an interesting example of how a effective utilization of numerical methods can lead to optimized systems and components. The aim of the present paper is to show how from a simplified simulation model a high accuracy of the final behaviour of a device can be predicted