AMBs for high-speed motor-generators in aerospace

We report progress in the development of an active magnetic bearing actuator. This work includes finite-element modelling results and comparison with analytic models and literature. Static test results have been used to validate some aspects of the finite element models and a dynamic test rig has been designed to enable validation under levitated and rotating conditions. Particular attention is given to force-displacement characteristics, loss mechanisms and predicted rotordynamic behavior. Discrepancies between FEA and analytic models are discussed. The test rig architecture and planned instrumentation strategy are also outlined, forming the basis for forthcoming experimental correlation.