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Structural Health Monitoring
The ultimate goal of Structural Health Monitoring is to predict the remaining life of structures, such as a bridges, railroads, roads, viaducts or buildings.
Although that goal is still an open question, a few intermediate steps of damage identification have been defined 1, where predicting the remaining service life is the last one:
These steps are also called levels of damage identification. Current methods can perform level 1 and 2 damage identification, and even level 3 when we include models of the degradation behavior of the structure.
Laser Doppler Vibrometer
We are also doing research to apply the newest wireless sensor technologies to structural health monitoring to civil structures, including:
Here is a poster presenting the research (PDF 552KB, December 2006).
Integrated Accelerometer Systems
1. Scott W. Doebling, Charles R. Farrar, and Michael B. Prime. A summary review of vibration-based damage identification methods. The Shock and Vibration Digest, 30(2):91-105, 1998.