서지주요정보
Random decrement 기법을 이용한 자유진동 특성의 추정 = Estimation of modal properties by random decrement technique
서명 / 저자 Random decrement 기법을 이용한 자유진동 특성의 추정 = Estimation of modal properties by random decrement technique / 고관석.
저자명 고관석 ; Ko, Kwan-Seok
발행사항 [대전 : 한국과학기술원, 1990].
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소장정보

등록번호

8000602

소장위치/청구기호

학술문화관(문화관) 보존서고

MCIE 9001

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이용가능

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리뷰정보

초록정보

Modal properties of a structural system are evaluated conventionally by using the measurement records of input forces and output responses of the structure. However, it is very difficult to measure the time-varying input force or of existing structures under the natural operational loading conditions. Therefore, it is desirable to develop a method for the estimation of modal properties based on the response records only. One of the possible methods is the one using the random decrement technique. In this paper, the random decrement technique is studied for the purpose mentioned above. The study focuses on the estimation of the natural frequencies, modal damping ratios and mode shapes of structures with multi-degrees of freedom. The effectiveness of the method is investigated for the cases with different response components measured, such as displacement, velocity and acceleration records of the structures. Studies are carried out for various input forces with different frequency contents. From numerical example studies based on the measurement data artificially generated using the Monte Carlo simulation technique, it has been found that the random decrement technique is a powerful tool to estimate modal properties of structures subjected to random loadings.

서지기타정보

서지기타정보
청구기호 {MCIE 9001
형태사항 ii, 66 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Kwan-Seok Ko
지도교수의 한글표기 : 윤정방
지도교수의 영문표기 : Chung-Bang Yun
학위논문 학위논문(석사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 38-39
주제 Numerical analysis.
Seismic waves.
자유 진동. --과학기술용어시소러스
수치 해법. --과학기술용어시소러스
지진파. --과학기술용어시소러스
Modal analysis.
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