지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.19 No.1
- 발행연도
- 2017.1
- 수록면
- 1 - 10 (10page)
이용수
초록· 키워드
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The operation of subway trains induces secondary structure-borne vibrations in the nearby underground spaces. The vibration, along with the associated noise, can cause annoyance and adverse physical, physiological, and psychological effects on humans in dense urban environments. Traditional tethered instruments restrict the rapid measurement and assessment on such vibration effect. This paper presents a novel approach for Wireless Smart Sensor (WSS)-based autonomous evaluation system for the subway train-induced vibrations. The system was implemented on a MEMSIC\'s Imote2 platform, using a SHM-H high-sensitivity accelerometer board stacked on top. A new embedded application VibrationLevelCalculation, which determines the International Organization for Standardization defined weighted acceleration level, was added into the Illinois Structural Health Monitoring Project Service Toolsuite. The system was verified in a large underground space, where a nearby subway station is a good source of ground excitation caused by the running subway trains. Using an on-board processor, each sensor calculated the distribution of vibration levels within the testing zone, and sent the distribution of vibration level by radio to display it on the central server. Also, the raw time-histories and frequency spectrum were retrieved from the WSS leaf nodes. Subsequently, spectral vibration levels in the one-third octave band, characterizing the vibrating influence of different frequency components on human bodies, was also calculated from each sensor node. Experimental validation demonstrates that the proposed system is efficient for autonomously evaluating the subway train-induced ambient vibration of underground spaces, and the system holds the potential of greatly reducing the laboring of dynamic field testing.
목차
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참고문헌 (38)
참고문헌 신청
Balendra, T. / 1991 / Dynamic response of buildings due to trains in underground tunnels / Earthq. Eng. Struct. D 20(3):275~291
Peter J. Bennett / 2010 / Wireless sensor networks for underground railway applications: case studies in Prague and London / Smart Structures and Systems, An International Journal 6(6):619~639
Chua, K. H. / 1992 / Groundborne vibrations due to trains in tunnels / Earthq. Eng. Struct. D 21(5):445~460
Chua, K. H. / 1995 / Building response due to subway train traffic / J. Geotech. Eng 121(11):747~754
Clouteau, D. / 2013 / Dynamics of structures coupled with elastic media—a review of numerical models and methods / J. Sound Vib 332(10):2415~2436
Peter J. Bennett / 2010 / Wireless sensor networks for underground railway applications: case studies in Prague and London / Smart Structures and Systems, An International Journal 6(6):619~639
Chua, K. H. / 1992 / Groundborne vibrations due to trains in tunnels / Earthq. Eng. Struct. D 21(5):445~460
Chua, K. H. / 1995 / Building response due to subway train traffic / J. Geotech. Eng 121(11):747~754
Clouteau, D. / 2013 / Dynamics of structures coupled with elastic media—a review of numerical models and methods / J. Sound Vib 332(10):2415~2436
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