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http://dx.doi.org/10.5050/KSNVE.2015.25.5.329

A Mode Sorting Method Using the MAC of a Rotor-bearing System  

Lim, Jonghyuk (Hanyang University)
Kim, Minsung (Hanyang University)
Lee, Kyuho (Hyosung Corporation)
Park, Chuljun (Hyosung Corporation)
Chung, Jintai (Hanyang University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.25, no.5, 2015 , pp. 329-336 More about this Journal
Abstract
This paper presents a sorting method of mode vectors and natural frequencies about a rotor-journal bearing system. The rotor is solved by the finite element method, the bearing stiffness and damping coefficient are solved by the finite difference method. At any rotation speed section through the eigenvalue analysis of the system, mode vectors and natural frequencies not sorted are confirmed via the Campbell diagram and the MAC(modal assurance criterion). To sort mode vectors and natural frequencies of the section, a mode sorting method is presented through a method of rearranging the MAC of the mode vectors. Finally, the mode vectors and the natural frequencies are sorted by using the presented method, these are verified through the MAC.
Keywords
Modal Assurance Criterion; Campbell Diagram; Mode Vector; Natural Frequency; Rotor; Journal Bearing;
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  • Reference
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