A method for a modal measurement of electrical machines

• Autores: Sebastian Fingerhuth, Roman Scharrer, Knut Kasper
• Localización: Tecniacústica 2009, Vol. 4, 2009 (Comunicaciones. Acústica estructural y vibraciones), ISBN 84-87095-17-8
• Idioma: español
• Enlaces
  • Texto completo (pdf)
• Resumen

  • One important acoustic and vibration analysis carried out on electrical machines is experimental modal analysis. A well known method for this measurement is using an impulse hammer or shaker, but those have some important disadvantages.

    In this work a method of electrical machine modal measurement is presented, where the machines electromagnetic forces are used to excite the machine while halted. By exciting the machine with a known current signal a reproducible and controlled measurement procedure is obtained. The modal characteristic of the machine as well as the transfer function between force and surface vibration are determined.