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회전축 정렬불량을 가지는 유연 회전디스크의 고유치 해석

Title
회전축 정렬불량을 가지는 유연 회전디스크의 고유치 해석
Other Titles
Natural Frequencies of an Spinning Disk Misaligned with the Axis of Rotation
Author
정진태
Keywords
회전디스크(Spinning Dsik); 축정렬불량(Misalignment ); 갤러킨 법(Galerkin' s Method); 고유치(Eigenvalue); 위험속도(Critical Speed)
Issue Date
2001-11
Publisher
한국소음진동공학회
Citation
한국소음진동공학회 2001년도 추계학술대회논문집, page. 817-825
Abstract
The natural frequencies of a flexible spinning disk misaligned with the axis of rotation are studied in an analytic mamm. The effects of misalignment on the natural frequency need to be investigated, because the mi^ligmiient between the axis of symmetry and the axis of rotation cannot be avoided in the ranovable disks such as CD-R, CD-RW or DVD disks. Assuming that the in-plane displacements are in steady state and the out-of-plane displacement is in dynamic state, the equations of motion are derived for the misaligned spinning disk. After the exact solutions arc obtained for the steady-state in-plane displacements, they are plugged into the equation for the dynamic-state out-of-plane motion. The resultant equation is a linear equation for the out-of-plane displacement,which is discretized by the Galerkin method. Based on the discretized equations, the effects of the misalignment are analyzed on die vibration characteristics of the spinning disk, i.e., the natural frequencies and the critical speed.
URI
https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE02451510?https://repository.hanyang.ac.kr/handle/20.500.11754/161066
ISSN
1598-2548
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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