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Identifying Dynamic Characteristics of Structures to Estimate the Performance of a Smart Wireless MA System  

Heo, Gwang-Hee (건양대학교 토목공학과)
Lee, Woo-Sang (충남대학교 토목공학과)
Shin, Jae-Chul (충남대학교 토목공학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.9, no.4, 2005 , pp. 227-234 More about this Journal
Abstract
In this paper, a smart wireless MEMS-based accelerometer(MA) system has been designed and experimented for smart monitoring system of civil structures. Various performance and experimental tests have been carried out to evaluate whether this system is suitable for monitoring system of civil structures. First, we examined its sensitivity, resolution, and noise, specifically to evaluate the performance of the smart wireless MA system. The results of experiments enabled us to estimate performance of the MA in SWMAS in comparison to the value of data sheet from MA. Second, characteristics of model structure were analyzed by the ambient vibration test based on the NExT combined with ERA. Finally, this analysis was compared to the one that was made by FE results, and the comparison proved that a smart wireless MA system was fitted in smart monitoring system effectively.
Keywords
Smart Monitoring System; MEMS-based accelerometer(MA); NExT; ERA; MAC;
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