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Resumen de Electromagnetically excited audible noise – evaluation and optimization of electrical machines by numerical simulation

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

  • Purpose – Disturbing vibrations and noise of electrical machines are gaining impact. The paper aims to focus on the necessity of estimating the electromagnetic, structure‐dynamical, and acoustic behaviour of the machine during designing and before proto‐typing.

    Design/methodology/approach – 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.

    Findings – The simulated results show good accordance to measurement results. The methods and simulation tools allow the analysis and evaluation of every type of energy converter with respect to its electromagnetic, structure‐dynamical and acoustic behaviour.

    Originality/value – The methods developed and proved can be applied to any electromagnetic device in general.


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