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Investigation of a vibration-damping unit for reduction in low-frequency vibrations of electric motorsThe vibroacoustical characteristics of different types of electric motors are discussed. It is shown that the basic source of low frequency vibrations is rotor unbalance. A flexible damping support, with an antivibrator, is used to obtain the vibroacoustical effect of reduction in the basic harmonic of the electric motor. A model of the electric motor and the damping apparatus is presented. Mathematical models are developed to show the relationships of the parameters. The basic purpose in using a calculation model id the simultaneous replacement of the exciting force created by the rotor unbalance and its inertial rigidity characteristics by a limiting kinematic disturbance.
Document ID
19740021761
Document Type
Other
Authors
Grigoryey, N. V. (Kanner (Leo) Associates Redwood City, CA, United States)
Fedorovich, M. A. (Kanner (Leo) Associates Redwood City, CA, United States)
Date Acquired
August 7, 2013
Publication Date
June 1, 1973
Publication Information
Publication: Cybernetic Diagnostics of Mech. Systems with Vibro-acoustic Phenomena (NASA-TT-F-14899)
Subject Category
ELECTRONIC EQUIPMENT
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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