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1 Electrical Power Quality and Utilisation. Journal

1 2006

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Electromagnetically excited audible noise - evaluation and optimisation of electrical machines by numerical simulation

Schlensok C., Schmülling B., Giet M., Hameyer K.

Electrical Power Quality and Utilisation. Journal

2006

Vol. 12, nr 2

121-128

Disturbing vibrations and noise of electrical machines are gaining impact. Therefore, it is necessary to estimate the electromagnetic, structure-dynamical, and acoustic behavior of the machine during designing and before prototyping. An adequate tool is numerical simulation applying the Finite-Element Method (FEM) and the Boundary-Element Method (BEM) allowing for the structured analysis and evaluation of audible noise also caused by manufacturing tolerances. The methods developed and proved at the Institute of Electrical Machines (IEM) at RWTH Aachen University can be applied to any electromagnetic device in general.