Multiphysical simulations in computational electromagnetics

Coupled electromagnetic, mechanical, acoustic and thermal problems arising in electrical machines are simulated using computational techniques. The interaction between magnetic and structural mechanical systems is demonstrated by a finite element structural investigation of the end-winding deformations of a turbo-generator. The multiphysical treatment of acoustical problems is illustrated by weakly coupled electromagnetic, structural dynamic and acoustic simulations. Finally, a procedure based on computational fluid dynamics for acquiring the convective heat transfer coefficients is presented in order enable coupled electro-thermal finite element simulations.