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.18 No.3
- 발행연도
- 2016.1
- 수록면
- 625 - 642 (18page)
이용수
초록· 키워드
오류제보하기
The rapid technology developments in smartphones have created a significant opportunity for their use in structural live load measurements. This paper presents extensive experiments conducted in two stages to investigate this opportunity. Shaking table tests were carried out in the first stage using selected popular smartphones to measure the sinusoidal waves of various frequencies, the sinusoidal sweeping, and earthquake waves. Comparison between smartphone measurements and real inputs showed that the smartphones used in this study gave reliable measurements for harmonic waves in both time and frequency domains. For complex waves, smartphone measurements should be used with caution. In the second stage, three-dimensional motion capture technology was employed to explore the capacity of smartphones for measuring the movement of individuals in walking, bouncing and jumping activities. In these tests, reflective markers were attached to the test subject. The markers\' trajectories were recorded by the motion capture system and were taken as references. The smartphone measurements agreed well with the references when the phone was properly fixed. Encouraged by these experimental validation results, smartphones were attached to moving participants of this study. The phones measured the acceleration near the center-of-mass of his or her body. The human-induced loads were then reconstructed by the acceleration measurements in conjunction with a biomechanical model. Satisfactory agreement between the reconstructed forces and that measured by a force plate was observed in several instances, clearly demonstrating the capability of smartphones to accurately assist in obtaining human-induced load measurements.
목차
등록된 정보가 없습니다.
참고문헌 (22)
참고문헌 신청
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Brownjohn, J. M. W. / 2004 / Long span steel pedestrian bridge at Singapore Changi Airport-Part 1 : prediction of vibration serviceability problems / Struct. Eng 82(16):21~27
Cao, D. / 2009 / Design and research of remote ECG display system based on smartphone / J. Xihua U : Nat. Sci. Ed 4:005
Chen, J. / 2015 / Vibration serviceability performance of an externally prestressed concrete floor during daily use and under controlled human activities / J. Perform. Constr. Fac
Chen, J. / 2014 / Kinematic data smoothing using ensemble empirical mode decomposition / J. Med. Imag. Health Inform 4(4):540~546
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