Cobham Technical Services on-demand presentation for FEA design

A web-based technical presentation from Cobham Technical Services is available to help designers use finite element analysis (FEA). The presentation will be of interest to electromagnetic and electromechanical analysts, as well as engineers who are currently using analytical design packages for rotating machines.

The presentation outlines how low-frequency electromagnetic simulation software enables designers to improve the performance of motors and generators to meet specific economic, efficiency and operating environment targets. Making extensive use of graphics, it covers all key areas of FEA and is suitable for people who are new to the subject.

After outlining the fundamental principles of FEA, such as defining model geometry, creating finite elements (meshing) and specifying or importing material properties such as B-H curves, the presentation takes a detailed look at aspects especially relevant to rotating electrical machines. These include hysteresis loss, the demagnetisation effects of short-circuits and other faults, and the critical importance of obtaining an accurate representation of the magnetic field in the rotor-armature air gap. Engineers modelling highly complex magnetic gearing systems involving concentric rotating and static magnetic paths are shown how to define multiple air gaps.

The 47-minute audiovisual presentation is available in English and French for on-demand playback via Cobham’s dedicated motor design software website: http://www.motor-design-software.com./webinars/.