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http://dx.doi.org/10.5762/KAIS.2014.15.11.6399

Development of a PVDF sensor for detecting over-load and impact on large-scale mechanical structures  

Kang, Dong-Bae (School of Mechanical Engineering, Pusan National University)
Ahn, Jung-Hwan (School of Mechanical Engineering, Pusan National University)
Kim, Gang-Yeon (School of Mechanical Engineering, Ulsan College)
Son, Seong-Min (School of Mechanical Engineering, Ulsan College)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.11, 2014 , pp. 6399-6405 More about this Journal
Abstract
An external overload or impact is an important factor affecting the safety of large-scale structures. The proposal of this paper is the development of a system for detecting overload and impulse using a single PVDF film sensor. In large-scale structures, the load causes the structure to be deformed and the impulse generates vibration on the structure. Generally, low frequency deformation or bending of a structure is measured with a strain gauge and the high frequency vibration is detected by an accelerometer. On the other hand, a single sensor that can detect both deformation and vibration has not been developed. In this study, the development of a detection system integrated with a polyvinylidene fluoride (PVDF) film sensor, amplifier, and software was attempted to monitor deformation and impact through a single sensor. The system was verified by the possibility of detecting overload and impulse, and the two filtered signals of the PVDF were compared with a conventional strain gauge and an accelerometer.
Keywords
Impact; Large-scale structure; Structural health monitoring; Over-load; PVDF;
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Times Cited By KSCI : 2  (Citation Analysis)
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