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MAC을 이용한 회전축계 시스템의 모드정렬 방법A Mode Sorting Method Using the MAC of a Rotor-bearing System
- Other Titles
- A Mode Sorting Method Using the MAC of a Rotor-bearing System
- Issue Date
- May-2015
- Publisher
- 한국소음진동공학회
- Keywords
- 모드평가기준; 캠벨선도; 모드벡터; 고유진동수; 회전체; 저널베어링; Modal Assurance Criterion; Campbell Diagram; Mode Vector; Natural Frequency; Rotor; Journal Bearing
- Citation
- 한국소음진동공학회논문집, v.25, no.5, pp.329 - 336
- Indexed
- KCI
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 25
- Number
- 5
- Start Page
- 329
- End Page
- 336
- ISSN
- 1598-2785
- 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.
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Related Researcher
- Chung, Jintai
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)