Journal Bearing Response to Excitation and Behavior in the Unstable Region
作者:
M. Akkök,
C.M. McC. Ettles,
期刊:
A S L E Transactions
(Taylor Available online 1984)
卷期:
Volume 27,
issue 4
页码: 341-351
ISSN:0569-8197
年代: 1984
DOI:10.1080/05698198408981579
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Three types of journal bearing of circular bore, elliptical, and offset-halves designs were subjected to excitation tests over a wide range of frequency. It is shown that, in the stable region of operation, the amplitude of the response correlates reasonably well with the solutions of linear theory. The response was found to peak (strongly in some cases) at excitation frequencies in the range 0.43 to 0.75 of the shaft running speed, depending on design and distance of the operating point from the instability threshold. These observed natural frequencies were found to correlate well with linear theory solutions for lower range frequency values up to about 0.65. At higher predicted natural frequencies, the observed resonance was less than the theoretical solutions.
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