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http://dx.doi.org/10.5050/KSNVN.2003.13.10.813

Generalized Modal Analysis of Asymmetrical Rotor System Using Modulated Coordinates  

서정환 (KAIST 기계공학과)
홍성욱 (금오공과대학교 기계공학부)
이종원 (KAIST 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.13, no.10, 2003 , pp. 813-820 More about this Journal
Abstract
Conventional modal analysis techniques are known to be inappropriate for asymmetrical rotor systems, when the equations of motion are written in the stationary coordinates, due to the presence of time varying parameters. This paper presents a generalized modal analysis method for asymmetrical rotor systems in the stationary coordinates, employing the modulated coordinates and the lambda matrix formulation. A numerical example with a flexible asymmetric rotor model is provided to demonstrate the effectiveness of the proposed modal analysis method. As an application of the proposed method, modal analysis is also performed with an open cracked rotor system.
Keywords
Asymmetrical Rotor System; Modulated Stationary Coordinates; Directional Frequency Response Function; Modal Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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