Bench Scale 구조물을 이용한 TMD 기반 철도역사 진동저감 기법의 실험적 검증

서지정보

ㆍ발행기관 : 한국복합신소재구조학회 ㆍ수록지정보 : 복합신소재구조학회 논문집 / 8권 / 2호
ㆍ저자명 : 문연수, 김민수, 이찬영, 지용수, 이규세, 최상현

목차

1. 서 론
2. TMD 설계파라미터 결정
3. 마찰형 스프링-감쇠 시스템의 성능시험
4. Bench Scale 실험
4.1 개요
4.2 실험 방법
4.3 실험 결과
5. 결 론
REFERENCES
ACKNOWLEDGMENT

영어 초록

Recently, measures for reducing noise and vibration of a railroad station are actively being developed to enhance its property value and comfort level of passengers. In this paper, the applicability of the recently developed vibration mitigation method utilizing a platform TMD (Tuned Mass Damper) by installing a spring-damper system beneath the platform is experimentally verified using a bench scale structure. The two-story bench scale structure is built to simulate a real railroad station, and vibration reduction effect is verified by comparing acceleration before and after applying the platform TMD at the 2nd floor of the structure. The design parameters of the platform TMD system is determined based on vibration analysis result and the MTMD (Multiple TMD) theory recently developed to enhance the effectiveness of the platform TMD method. The vibration is excited to the bench-scale structure using a vibrator. The performance test result for a spring-damper system is also presented. The result of the experiment reveals that the platform TMD method can reduce the vibration of the bench-scale structure by greater than 5dB(V).

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