A BEAM USING CROSS-CORRELATION ANALYSIS OF VIBRATION RESPONSE

CIVIL

Now a day STRUCTURAL HEALTH MONITORING (SHM) is a newly evolving technique used from last few decades. The main goal of SHM is to be able to replace current inspection cycles with a continuously monitoring system. The function required in the SHM system during the in-service operation is to identify the load applied to the structure or damage in it. Reducing maintenance costs, increasing civil structures like dam’s bridges, and other type of truss structures, Aircraft Availability, Reducing Weight, increasing the strength and Quality control are the primary goals of Structural Health Monitoring. However there are several advantages of SHM over the traditional inspection cycles, such as reduced down-time, elimination of component tear-down inspections and the potential prevention of failure during operation. Civil structures have one of the highest payoffs. For SHM applications since damage can lead to catastrophic and expensive failures, and the vehicles involved undergo regular costly inspections. Currently 27% of an average Materials life cycle cost, both for naturals and composite structures, is spent on inspection and repair which excludes opportunity cost. By the use of SHM it is observed that there is reduction in maintenance and savings up to 75%. New reliable approaches for damage detection such as SHM need to be developed to ensure that the total cost of ownership of critical structures does not become limiting factor for their use. In this thesis cross correlation technique is used to detect and locate the damage in the structure using vibration analysis.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.