(A) study on the vibration absorber using viscoelastic material = 점탄성 재료를 이용한 진동 흡수기에 대한 연구

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The possibility for using a viscoelastic material for the vibration absorber instead of conventional spring and viscous damper is studied in this thesis. For this, dynamic elastic modulus and loss factor of a viscoelastic material are obtained as functions of frequency, temperature, and prestrain. With these properties, optimum tuning and damping ratio of the absorber are obtained by adjusting the geometrical shape of the damper and the magnitude of prestrain in such a way that the vibration of the primary system could be most efficiently suppressed. It is shown that the viscoelastic vibration absorber has better capability in reducing vibration of the primary system compared with the conventional springviscous damper-vibration absorber. Also the viscoelastic vibration absorber shows applicability to the case where the natural frequency of the main structure is not fixed, but changing, because the optimum tuning and damping ratio of a given absorber can be achieved to some extent just by adjusting the prestrain without changing the absorber itself. From this and other aspects to be explained later the viscoelastic vibration absorber is believed to be superior to the absorbers hitherto used.
Advisors
Kim, Kwang-Joonresearcher김광준researcher
Description
한국과학기술원 : 생산공학과,
Publisher
한국과학기술원
Issue Date
1984
Identifier
64350/325007 / 000823530
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 생산공학과, 1984.2, [ vi, 63 p. ]

URI
http://hdl.handle.net/10203/43941
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=64350&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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