Exploring a Vibration Synthesis Process for the Acoustic Characterization of Electric Drives

A comprehensive vibration synthesis process for synthesizing the electromagnetically excited acoustic vibrations in electric drives is explored in this paper. The study is performed on a traction drive for a hybrid electric vehicle. The work derives and highlights several key aspects for modeling and assessing the acoustic characteristics of electric drives. The influence of different force excitation shapes on the resulting overall vibration is shown, and the importance of including tangential forces in the synthesis process is highlighted. The resulting operational deflections at selected operating points are analyzed and compared to measurements. The load level dependence of the noise components is investigated. Finally, acoustic maps are introduced as a means to display and compare predicted and measured acoustic characteristics of variable-speed drives. The synthesized acoustic maps are validated by comparison against their measured counterparts.

[1]  Ching Chuen Chan,et al.  Acoustic noise radiated by PWM-controllel induction machine drives , 2000, IEEE Trans. Ind. Electron..

[2]  Michael Vorländer,et al.  Die Geräuschqualität bei der Anfahrt elektrischer Schienenfahrzeuge , 2005 .

[3]  Joseph C. S. Lai,et al.  Noise of Polyphase Electric Motors , 2005 .

[4]  Seamus D. Garvey,et al.  Tangential forces matter , 1999, IEMDC 1999.

[5]  David J. Ewins.  Basics and state-of-the-art of modal testing , 2000 .

[6]  Joseph C. S. Lai,et al.  Prediction of acoustic noise from variable speed induction motors: deterministic vs. statistical approaches , 2000, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129).

[7]  K. Williams,et al.  Effects of laminations on the vibrational behaviour of electrical machine stators , 1997 .

[8]  Guy Friedrich,et al.  Prediction of Audible Magnetic Noise Radiated by Adjustable-Speed Drive Induction Machines , 2010, IEEE Transactions on Industry Applications.

[9]  Jean Le Besnerais,et al.  Reduction of magnetic noise in PWM-supplied induction machines - low-noise design rules and multi-objective optimization , 2008 .

[10]  R. L. Campbell,et al.  An investigation of induction motor zeroth-order magnetic stresses, vibration, and sound radiation , 2004, IEEE Transactions on Magnetics.

[11]  Martin Furlan,et al.  A coupled electromagnetic‐mechanical‐acoustic model of a DC electric motor , 2003 .

[12]  R. D. De Doncker,et al.  Vibration Synthesis for Electrical Machines Based on Force Response Superposition , 2010, IEEE Transactions on Magnetics.

[13]  Michel Hecquet,et al.  Characterization and Reduction of Audible Magnetic Noise Due to PWM Supply in Induction Machines , 2010, IEEE Transactions on Industrial Electronics.

[14]  P. Pillay,et al.  Prediction of electromagnetic forces and vibrations in SRMs operating at steady state and transient speeds , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[15]  Iqbal Husain,et al.  Analytical model for predicting noise and vibration in permanent magnet synchronous motors , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[16]  P. Pillay,et al.  Young's modulus for laminated machine structures with particular reference to switched reluctance motor vibrations , 2004, IEEE Transactions on Industry Applications.

[17]  K. Hameyer,et al.  Analysis of noise exciting magnetic force waves by means of numerical simulation and a space vector definition , 2008, 2008 18th International Conference on Electrical Machines.

[18]  J. Roivainen.  Unit-wave response-based modeling of electromechanical noise and vibration of electrical machines , 2009 .

[19]  Michael Vorländer,et al.  Towards the auralization of electrical machines in complex virtual scenarios , 2009 .

[20]  Pragasen Pillay,et al.  Impact of stator windings and end-bells on resonant frequencies and mode shapes of switched reluctance motors , 2002 .