Feasibility study on an angular velocity-based damage detection method using gyroscopes

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This paper proposes an angular velocity-based damage detection method using gyroscopes and investigates its feasibility. This study basically intends to enhance the performance of the existing modal flexibility-based methods by replacing accelerations measured from accelerometers with angular velocities measured from gyroscopes. In order to verify the superiority of a gyroscope in damage detection, numerical studies were performed by changing optional parameters such as damage location, severity, and measurement noise. From parametric studies, it was shown that the damage detection results using gyroscopes are more sensitive to damage and more robust to noise generated from the curvature estimation than those using accelerometers. Experimental validations were also carried out to investigate the feasibility of a gyroscope in damage detection. From the results, it was shown that the gyroscope-based damage detection method can successfully identify damage location. In conclusion, it was numerically and experimentally verified that a new damage detection approach using gyroscopes could improve damage detection ability significantly.
Publisher
IOP PUBLISHING LTD
Issue Date
2014-07
Language
English
Article Type
Article
Keywords

MODE SHAPE NORMALIZATION; IDENTIFICATION METHODS; FLEXIBILITY; BRIDGE; LOCALIZATION

Citation

MEASUREMENT SCIENCE & TECHNOLOGY, v.25, no.7

ISSN
0957-0233
DOI
10.1088/0957-0233/25/7/075009
URI
http://hdl.handle.net/10203/189852
Appears in Collection
CE-Journal Papers(저널논문)
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