Engineering Mechanics

International Conference

Proceedings Vol. 14 (2008)


ENGINEERING MECHANICS 2008

NATIONAL CONFERENCE WITH INTERNATIONAL PARTICIPATION
May 12 – 15, 2008, Svratka, Czech Republic
;
Editors: Vladimír Fuis and Michal Pásek

Copyright © 2008 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague

ISBN 978-80-87012-11-6 (printed)
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)

list of papers scientific commitee

NOISE TESTING OF ELECTRICAL MOTORS – THE TEST RESULTS EVALUATION
Nesvadba M., Singule V.
pages 168 - +8p., full text

The noise measuring of electric motors is already well known and understandable, but when the motor producer wants to measure the motor noise directly on the motor assembly line (as out-going inspection) then come several troubles which must be fixed. The most important is to eliminate the background noise – the sound pressure on the work shop can be over 80 dB somewhere so then is practically impossible to do a motor noise measuring. It is necessary to use a noise-box to reduce the background noise – see Fig.1. 2. Next trouble can be the test results evaluation – especially in case of special “noise requirements” with strict acceptance criteria. Here we have to count also with additional disturbances caused for example by using of bearings from different manufacturers.


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Text and facts may be copied and used freely, but credit should be given to these Proceedings.

All papers were reviewed by members of the scientific committee.


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