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Piezoelectric Transducer-Based Structural Health Monitoring for Aircraft Applications

School of Aerospace Engineering, Xiamen University, Xiamen 361005, China
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Sensors 2019, 19(3), 545; https://doi.org/10.3390/s19030545
Received: 23 December 2018 / Revised: 22 January 2019 / Accepted: 22 January 2019 / Published: 28 January 2019
(This article belongs to the Special Issue Piezoelectric Transducers: Advances in Structural Health Monitoring)
Structural health monitoring (SHM) is being widely evaluated by the aerospace industry as a method to improve the safety and reliability of aircraft structures and also reduce operational cost. Built-in sensor networks on an aircraft structure can provide crucial information regarding the condition, damage state and/or service environment of the structure. Among the various types of transducers used for SHM, piezoelectric materials are widely used because they can be employed as either actuators or sensors due to their piezoelectric effect and vice versa. This paper provides a brief overview of piezoelectric transducer-based SHM system technology developed for aircraft applications in the past two decades. The requirements for practical implementation and use of structural health monitoring systems in aircraft application are then introduced. State-of-the-art techniques for solving some practical issues, such as sensor network integration, scalability to large structures, reliability and effect of environmental conditions, robust damage detection and quantification are discussed. Development trend of SHM technology is also discussed. View Full-Text
Keywords: structural health monitoring; piezoelectric transducer; sensor network; damage detection; aircraft structural health monitoring; piezoelectric transducer; sensor network; damage detection; aircraft
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MDPI and ACS Style

Qing, X.; Li, W.; Wang, Y.; Sun, H. Piezoelectric Transducer-Based Structural Health Monitoring for Aircraft Applications. Sensors 2019, 19, 545.

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