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Wireless Sensor Network is an emerging technology which can significantly reduce the cost and the time needed to monitor the conditions of civil structures. This work presents W-TREMORS, a new wireless sensing system for high-frequency distributed data acquisition. Our sensor network is based on the low-power and low-data rate standard IEEE 802.15.4, and we used inexpensive hardware. Nevertheless,...
Health diagnosis of bridge by traditional model-based method would face strong difficulty in constructing an accurately finite element model (FEM) due to the document lack of old bridge and the change of the structural parameters of bridge in the service. The further challenge still lies in the uncertainty of the ambient excitation in structural health monitoring of bridge. In this paper, an improved...
Structural Health Monitoring and Structural Identification are concepts that are more frequently being applied to improve the reliability and effectiveness of operational and maintenance management for constructed systems. This paper describes why the need for such paradigms continues to grow, and discusses many of the limitations associated with current approaches for assessing and evaluating the...
The AC electrical machines have been used in railway traction systems for about 40 years ago. The main advantage of this choice is to discard the power limitation and permits high power light-weight drives. This enable constructor to achieve higher traction speed and this area now is in permanent development. In this way, the security and reliability of the system becomes more important. The railway...
This paper presents a structural health monitoring system for monitoring, with reduced visual impact, one historical building structure. The system is based on fiber Bragg gratings and comprises 19 displacement sensors and 5 temperature sensors. All the sensors were custom made according to the monitoring points' characteristics. The results obtained over the first year of monitoring are presented...
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