한국지진공학회:학술대회논문집 (Proceedings of the Earthquake Engineering Society of Korea Conference)
- 한국지진공학회 2001년도 추계 학술발표회 논문집 Proceedings of EESK Conference-Fall 2001
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- Pages.391-398
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- 2001
웨이블릿 변환을 이용한 구조물의 동특성 분석
Identification of Structural Dynamic Characteristics Using Wavelet Transform
초록
This paper presents the application method of a wavelet theory for identification of the structural dynamic properties of a bridge, which is based on the ambient vibration signal caused by the traffic loadings. The method utilizes the time-scale decomposition of the ambient vibration signal , i . e. the continuous wavelet transform using the Morlet wavelet is used to decompose the ambient vibration signal into the time-scale domain. The applicability of the proposed approach is verified through the reduced scale bridge and automobile system in the laboratory. The results of verification shows that the use of the Morlet wavelet to identify the structural dynamic properties is reasonable and practicable.
키워드