Vibration analysis of a blade-disk system using transfer matrix method = 전달매트릭스법을 이용한 익-원판계의 진동해석

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The vibration characteristics of a blade-disksystem are analyzed by using the transfer matrix method. The effects of stagger, pretist angle and rotational speed on the frequencies of the system are investigated. The geometric model considered comprises a disk clamped at the inner radius and having blades cantilevered at the disk outer radius. The disk is treated as a thin plate possessing rotational symmetry, and the blade is regarded as Euler-Bernoulli beam. The method is based on a substructuring technique, whereby the disk forms one substructure, and the blade forms the other substructure. First, for each of the two structures, the governing differential equations are transformed into a set of first-order equations and the transfer matrices are obtained by adopting the Runge-Kutta method. Next, the frequency equation of a blade-disk system is derived by combining the transfer matrix in both structures and applying the boundary conditions. The results show the influence of some important parameters of the blinded disks on its natural frequencies.
Advisors
Bark, Youn-SikresearcherLee, Byung-Horesearcher박윤식researcher이병호researcher
Description
한국과학기술원 : 기계공학과,
Publisher
한국과학기술원
Issue Date
1989
Identifier
67486/325007 / 000861736
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 기계공학과, 1989, [ ii, 49 p. ]

URI
http://hdl.handle.net/10203/46947
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=67486&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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