Structural health monitoring using power flow metric

A. Baz

doi:10.1117/12.817532

30 March 2009 Structural health monitoring using power flow metric

A. Baz

Proceedings Volume 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009; 72922A (2009) https://doi.org/10.1117/12.817532
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

Health monitoring of defective beams is achieved through the use of a distributed network of sensors that can map the deflection profile of these beams. The mapped deflection profiles are then used to extract the structural power flow as an effective criterion for identifying the exact location of the defects. In this paper, emphasis is placed on demonstrating the accuracy and the effectiveness of the power flow maps in identifying the location and the extent of small defects. The presented concepts can be easily employed in health monitoring of more complex and critical structures such as aircraft fuselages and bridges where small defects can be detrimental to their safe operation and their locations can not be easily identified by conventional modal identification methods.

Citation Download Citation

A. Baz "Structural health monitoring using power flow metric", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72922A (30 March 2009); https://doi.org/10.1117/12.817532

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