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Vibration transmission through rolling element bearings. I - Bearing stiffness formulation. II - System studiesHow vibratory motion can be transmitted from the rotating shaft to the casing and other connecting structures in rotating mechanical equipment is addressed here by developing a new mathematical model of precision rolling element bearings. A new grating stiffness matrix is proposed in order to demonstrate a coupling between the shaft bending motion and the flexural motion of the casing plate. It is shown that the translational bearing stiffness coefficients currently used in rotor dynamic models are a small subset of the proposed matrix. The theory is validated by examples, and the proposed bearing formulation is then extended to demonstrate its superiority over existing models in vibration transmission analyses. It is shown that the model can easily be incorporated into analytical or numerical models typically used for dynamic analyses.
Document ID
19900054046
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lim, T. C.
(Ohio State Univ. Columbus, OH, United States)
Singh, R.
(Ohio State University Columbus, United States)
Date Acquired
August 14, 2013
Publication Date
June 8, 1990
Publication Information
Publication: Journal of Sound and Vibration
Volume: 139
ISSN: 0022-460X
Subject Category
Structural Mechanics
Accession Number
90A41101
Distribution Limits
Public
Copyright
Other

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