Active health monitoring of an aircraft wing with embedded piezoelectric sensor/actuator network: I. Defect detection, localization and growth monitoring
This work focuses on an ultrasonic guided wave structural health monitoring (SHM) system
development for aircraft wing inspection. In part I of the study, a detailed description of a real
aluminum wing specimen and some preliminary wave propagation tests on the wing panel
are presented. Unfortunately, strong attenuation and scattering impede guided waves for
large-area inspection. Nevertheless, small, low-cost and light-weight piezoelectric (PZT)
discs were bonded to various parts of the aircraft wing, in a form of relatively sparse arrays …
development for aircraft wing inspection. In part I of the study, a detailed description of a real
aluminum wing specimen and some preliminary wave propagation tests on the wing panel
are presented. Unfortunately, strong attenuation and scattering impede guided waves for
large-area inspection. Nevertheless, small, low-cost and light-weight piezoelectric (PZT)
discs were bonded to various parts of the aircraft wing, in a form of relatively sparse arrays …
Active health monitoring of an aircraft wing with an embedded piezoelectric sensor/actuator network: II. Wireless approaches
The objective of this study is to develop a wireless ultrasonic structural health monitoring
(SHM) system for aircraft wing inspection. In part I of the study (Zhao et al 2007 Smart Mater.
Struct. 16 1208–17), small, low cost and light weight piezoelectric (PZT) disc transducers
were bonded to various parts of an aircraft wing for detection, localization and growth
monitoring of defects. In this part, two approaches for wirelessly interrogating the
sensor/actuator network were developed and tested. The first one utilizes a pair of reactive …
(SHM) system for aircraft wing inspection. In part I of the study (Zhao et al 2007 Smart Mater.
Struct. 16 1208–17), small, low cost and light weight piezoelectric (PZT) disc transducers
were bonded to various parts of an aircraft wing for detection, localization and growth
monitoring of defects. In this part, two approaches for wirelessly interrogating the
sensor/actuator network were developed and tested. The first one utilizes a pair of reactive …
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