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한 개의 크랙을 가진 회전하는 패킷 블레이드 시스템의 진동해석Modal Analysis of a Rotating Packet Blade System having a Crack
- Other Titles
- Modal Analysis of a Rotating Packet Blade System having a Crack
- Issue Date
- Dec-2009
- Publisher
- 한국소음진동공학회
- Keywords
- Modal Analysis; Multi-packet Blade System; Open Crack; Stress Intensity Factor; Natural Frequency; Disc; Coupling Stiffness Effect; Cantilever Beam; Shroud; 고유진동 해석; 다중 패킷 블레이드 계; 개구형 크랙; 응력집중계수; 고유진동수; 디스크; 연성강성효과; 외팔보; 쉬라우드
- Citation
- 한국소음진동공학회논문집, v.19, no.12, pp 1244 - 1251
- Pages
- 8
- Indexed
- KCI
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 19
- Number
- 12
- Start Page
- 1244
- End Page
- 1251
- ISSN
- 1598-2785
2287-5476
- Abstract
- In this paper the vibrational behavior of a multi-packet blade system having a cracked blade is investigated. Each blade is assumed as a slender cantilever beam. The coupling stiffness effect that originates from either disc flexibility or shroud is considered in the modeling. Hybrid deformation variables are employed to derive the equations of motion. The flexibility due to crack, which is assumed to be open during the vibration, is calculated basing on a fracture mechanics theory. In the paper, the results of the change in modal parameters due to crack appearance are presented. The influence of the crack parameters, especially of the changing location of the crack is examined.
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Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
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