2018
DOI: 10.3390/s18072218
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Impact Monitoring for Aircraft Smart Composite Skins Based on a Lightweight Sensor Network and Characteristic Digital Sequences

Abstract: Due to the growing use of composite materials in aircraft structures, Aircraft Smart Composite Skins (ASCSs) which have the capability of impact monitoring for large-scale composite structures need to be developed. However, the impact of an aircraft composite structure is a random transient event that needs to be monitored on-line continuously. Therefore, the sensor network of an ASCS and the corresponding impact monitoring system which needs to be installed on the aircraft as an on-board device must meet the … Show more

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Cited by 52 publications
(39 citation statements)
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“…The electric impedance mismatch worsens as piezoelectric element size reduces [78][79][80]. Long cables are often required for ultrasonic transducers in practical applications like biological medicine, marine, nuclear power, and aerospace [81][82][83]. Cable can effect in two ways, (1) electrical impedance mismatch causing high-energy reflection ratio between the transducer, and (2) the cable great attenuation of the higher part of the frequencies spectrum.…”
Section: Modeling Cable Effect On Transducer Performancementioning
confidence: 99%
“…The electric impedance mismatch worsens as piezoelectric element size reduces [78][79][80]. Long cables are often required for ultrasonic transducers in practical applications like biological medicine, marine, nuclear power, and aerospace [81][82][83]. Cable can effect in two ways, (1) electrical impedance mismatch causing high-energy reflection ratio between the transducer, and (2) the cable great attenuation of the higher part of the frequencies spectrum.…”
Section: Modeling Cable Effect On Transducer Performancementioning
confidence: 99%
“…In recent years, many researchers have explored the capability of PWAS for SHM applications, such as the characterization of PWAS [9,10,11,12,13], impact localization [14,15,16,17,18,19], acoustic emission (AE) detection [20,21], and damage detection in isotropic and composite plates [22,23,24,25,26,27]. These studies facilitate the understanding of PWAS-based SHM applications.…”
Section: Introductionmentioning
confidence: 99%
“…By analyzing the recorded signal, diagnosis can be made on the health status of the structure. Examples of PWAS passive sensing methods can be found in the impact localization [15,18] and AE detection [20,21]. Park et al [15] proposed a new technique for predicting the impact location on an anisotropic plate by analyzing the geometric shape of the wavefront, and it did not require prior knowledge of the material properties.…”
Section: Introductionmentioning
confidence: 99%
“…EIT-based sensing has demonstrated damage detection capability for concrete structures [17]. (2) Piezoelectric (PZT) sensing skins comprising of transducers and receivers built into a flexible layer have been proposed for damage detection for aeronautical applications [18,19] as they provide wireless network capabilities [20]. Numerical simulations and laboratory experiments have validated the use of such sensors for wind turbine blade monitoring [21].…”
Section: Introductionmentioning
confidence: 99%