Study on simple smart sensor system for structure using a piezo electric cable

2016 Fiscal Year Final Research Report

• Project/Area Number: 25242033
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Social systems engineering/Safety system
• Research Institution: Akita Prefectural University
• Principal Investigator: Shimoi Nobuhiro 秋田県立大学, システム科学技術学部, 教授 (10300542)
• Co-Investigator(Kenkyū-buntansha): 間所 洋和 秋田県立大学, システム科学技術学部, 准教授 (10373218) ; 青木 義男 日本大学, 理工学部, 教授 (30184047) ; CUADRA CARLOS 秋田県立大学, システム科学技術学部, 准教授 (30302194) ; 西田 哲也 秋田県立大学, システム科学技術学部, 教授 (40315627)
• Project Period (FY): 2013-10-21 – 2017-03-31
• Keywords: ピエゾケーブル / 加速度計 / 微動振動 / 圧電センサ / 固有振動数

Outline of Final Research Achievements

Deterioration and aging of bridges structures and damage caused by strong earthquakes might be conducive to collapse of the bridge, sometimes with catastrophic consequences. Therefore,investigation of structural condition of bridges is necessary for secure safe road operations. This paper presents a prototype of piezoelectric-cable sensor for vibration monitoring system that permits easy evaluation of the bridge structure integrity. For this study, a bridge located at Yurihonjo city, Japan was chosen as a target structure. The experiment was performed using a track of 19 t of equivalent weight. Responses were captured appropriately using the proposed system. They are comparable to responses obtained using accelerometers. Although the general response pattern is obtained appropriately, it is necessary to improve the accuracy of the proposed system to gather more reliable data.

Free Research Field

計測工学、ロボット工学