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Proceedings Paper

Wireless vibration-based SHM of caisson-type breakwater under foundation damage
Author(s): So-Young Lee; Khac-Duy Nguyen; Jeong-Tae Kim; Jin-Hak Yi
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Paper Abstract

This paper presents a vibration-based structural health monitoring (SHM) technique using a high sensitive wireless sensor node for caisson-type breakwater. To achieve the objective, the following approaches are implemented. Firstly, vibration-based SHM method is selected for caisson-type breakwater. The feasibility of the vibration-based SHM method is examined for the caisson structure by FE analysis. Foundation loss damage is considered as the damage of caisson-type breakwater. Secondly, a wireless SHM system with a high sensitive wireless sensor node is designed. The sensor node is built on an imote2 platform. The vibration-based SHM method is embedded on the sensor node. Finally, the performance of the wireless SHM technique is estimated from experimental tests on a lab-scaled caisson. The vibration responses and damage monitoring results are compared with the proposed wireless system and conventional wired system.

Paper Details

Date Published: 6 April 2012
PDF: 8 pages
Proc. SPIE 8345, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012, 83454K (6 April 2012); doi: 10.1117/12.917541
Show Author Affiliations
So-Young Lee, Pukyong National Univ. (Korea, Republic of)
Khac-Duy Nguyen, Pukyong National Univ. (Korea, Republic of)
Jeong-Tae Kim, Pukyong National Univ. (Korea, Republic of)
Jin-Hak Yi, Korea Ocean Research Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 8345:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2012
Masayoshi Tomizuka; Chung-Bang Yun; Jerome P. Lynch, Editor(s)

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