Structural Health Monitoring Using Wireless Smart Sensor Networks for a Cable-stayed Bridge

2011 ◽  
Author(s):  
Soojin Cho ◽  
Jong-Woong Park ◽  
Shin Ae Jang ◽  
Hongki Jo ◽  
Hyung-Jo Jung ◽  
...  
Keyword(s):  
Sensor Networks ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Smart Sensor ◽  
Structural Health ◽  
Cable Stayed Bridge

Decentralized NExT/ERA and RDT/ERA System Identification in Wireless Smart Sensor Networks

2012 ◽  
Vol 204-208 ◽  
pp. 4946-4951 ◽  
Author(s):  
Ding Yu Cui ◽  
Ke Gui Xin ◽  
Billie F. Spencer ◽  
Yu Fei Liu
Keyword(s):  
Sensor Networks ◽  
System Identification ◽  
Structural Health Monitoring ◽  
Power Consumption ◽  
Health Monitoring ◽  
Low Cost ◽  
Mode Shapes ◽  
Smart Sensor ◽  
Structural Health ◽  
Random Decrement Technique

Wireless smart sensor networks (WSSN) have many advances compared with traditional structural health monitoring (SHM) such as wireless process, real-time calculation and low cost. However power consumption is considered as one of the most limitations in this field. The unique features offered by decentralized data aggregation (DDA) technique with the potential to overcome power consumption enable implementation of the dense array of WSSN on large structures. This paper presents a system identification of a simply supported plate based on the random decrement technique (RDT) and natural excitation technique (NExT) in combination with eigensystem realization algorithm (ERA) using Illinois Structural Health Monitoring Project (ISHMP) Services Toolsuite. Finally the system parameters including natural frequency and mode shapes are in accordance with numerical simulation showing efficacy and feasibility of decentralized NExT/ERA and RDT/ERA system identification.

Structural health monitoring of a cable-stayed bridge using smart sensor technology: deployment and evaluation

2010 ◽  
Vol 6 (5_6) ◽  
pp. 439-459 ◽  
Author(s):  
Shinae Jang ◽  
Hongki Jo ◽  
Soojin Cho ◽  
Kirill Mechitov ◽  
Jennifer A. Rice ◽  
...  
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Sensor Technology ◽  
Smart Sensor ◽  
Structural Health ◽  
Technology Deployment ◽  
Cable Stayed Bridge
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