Theoretical Vibration Analysis Regarding Excitation due to Elliptical Shaft Journals in Sleeve Bearings of Electrical Motors
Author
Source
International Journal of Rotating Machinery
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-02
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
This paper shows a theoretical vibration analysis regarding excitation due to elliptical shaft journals in sleeve bearings of electrical motors, based on a simplified rotordynamic model.
It is shown that elliptical shaft journals lead to kinematic constraints regarding the movement of the shaft journals on the oil film of the sleeve bearings and therefore to an excitation of the rotordynamic system.
The solution of the linear differential equation system leads to the mathematical description of the movement of the rotor mass, the shaft journals, and the sleeve bearing housings.
Additionally the relative movements between the shaft journals and the bearing housings are deduced, as well as the bearing housing vibration velocities.
The presented simplified rotordynamic model can also be applied to rotating machines, other than electrical machines.
In this case, only the electromagnetic spring value cm has to be put to zero.
American Psychological Association (APA)
Werner, Ulrich. 2012. Theoretical Vibration Analysis Regarding Excitation due to Elliptical Shaft Journals in Sleeve Bearings of Electrical Motors. International Journal of Rotating Machinery،Vol. 2012, no. 2012, pp.1-19.
https://search.emarefa.net/detail/BIM-504067
Modern Language Association (MLA)
Werner, Ulrich. Theoretical Vibration Analysis Regarding Excitation due to Elliptical Shaft Journals in Sleeve Bearings of Electrical Motors. International Journal of Rotating Machinery No. 2012 (2012), pp.1-19.
https://search.emarefa.net/detail/BIM-504067
American Medical Association (AMA)
Werner, Ulrich. Theoretical Vibration Analysis Regarding Excitation due to Elliptical Shaft Journals in Sleeve Bearings of Electrical Motors. International Journal of Rotating Machinery. 2012. Vol. 2012, no. 2012, pp.1-19.
https://search.emarefa.net/detail/BIM-504067
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-504067