DocumentCode :
2181438
Title :
Experimental identification and reduction of acoustic noise in small brushed DC motors
Author :
Boglietti, Aldo ; Cavagnino, Andrea ; Saied, Seyedamin ; Vaschetto, Silvio
Author_Institution :
Dipt. di Ing. Elettr., Politec. di Torino, Turin, Italy
fYear :
2012
fDate :
2-5 Sept. 2012
Firstpage :
1679
Lastpage :
1685
Abstract :
Starting from an accurate experimental test campaign to identify the acoustic noise sources in small brushed DC motors for radiator cooling applications, the authors discuss and propose some alternative production solutions of electrical machines able to mitigate the problem. The feasibility of the proposed solution is compatible with the competitive automotive component market and the actual automatic production lines. Several prototypes have been manufactured and tested in the same semi-anechoic chamber as like as the original motor set. The reported noise measurements prove that for the considered application the noise emissions can be reduced to acceptable levels.
Keywords :
DC motors; acoustic noise measurement; anechoic chambers (acoustic); interference suppression; acoustic noise sources; automatic production lines; competitive automotive component market; electrical machines; experimental identification; experimental reduction; noise emissions; noise measurements; radiator cooling applications; semianechoic chamber; small brushed DC motors; DC motors; Forging; Harmonic analysis; Layout; Noise; Prototypes; Torque; Electric motors; acoustic noise; aerolic noise; brushed DC motors; cogging torque; cogging torque harmonics; cogging torque reduction; radiator cooling applications; resonance; semi-anechoic chamber; vibrations;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
Type :
conf
DOI :
10.1109/ICElMach.2012.6350106
Filename :
6350106
Link To Document :
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