On development of a multi-channel PZT array scanning system and its evaluating application on UAV wing box

Qiu, Lie; Yuan, Shenfang

doi:10.1016/j.sna.2009.02.032

Cited by 109 publications

(74 citation statements)

References 11 publications

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“…The material test system MTS810 was used for applying the fatigue load. The multi-channel PZT array scanning system developed by the authors’ group [33] was employed to perform the active Lamb wave based monitoring. A 5-cycle tone-burst signal with the center frequency of 290 kHz and ±10 V amplitude was used as the excitation signal, which is expressed in Equation (38).…”

Section: Experimental Evaluation On Hole-edge Crack Specimensmentioning

confidence: 99%

Research on a Lamb Wave and Particle Filter-Based On-Line Crack Propagation Prognosis Method

Chen

Yuan

Cai

2016

Sensors

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Prognostics and health management techniques have drawn widespread attention due to their ability to facilitate maintenance activities based on need. On-line prognosis of fatigue crack propagation can offer information for optimizing operation and maintenance strategies in real-time. This paper proposes a Lamb wave-particle filter (LW-PF)-based method for on-line prognosis of fatigue crack propagation which takes advantages of the possibility of on-line monitoring to evaluate the actual crack length and uses a particle filter to deal with the crack evolution and monitoring uncertainties. The piezoelectric transducers (PZTs)-based active Lamb wave method is adopted for on-line crack monitoring. The state space model relating to crack propagation is established by the data-driven and finite element methods. Fatigue experiments performed on hole-edge crack specimens have validated the advantages of the proposed method.

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Section: Experimental Evaluation On Hole-edge Crack Specimensmentioning

confidence: 99%

Research on a Lamb Wave and Particle Filter-Based On-Line Crack Propagation Prognosis Method

Chen

Yuan

Cai

2016

Sensors

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“…The experimental object was a 2 mm thick epoxy glass fiberboard. The signal acquisition equipment was the integrated structure of health monitoring scanning system SHM4.0 developed by the National Key Laboratory of Mechanical Structural Mechanics and Control in Nanjing University of Aeronautics and Astronautics, and the sensors were ceramic piezoelectric (PZT) components [17]. During the experiment, the lead break was adopted as the stimulation force; for surface lead break, the direction of stimulating force was perpendicular to the surface of plate, while for end surface lead break, the direction of stimulating force was parallel to the surface of plate.…”

Section: The Verification Of Lamb Wave Mode Stimulated By the Internamentioning

confidence: 99%

Determining impact induced damage by lamb wave mode extracted by EMD method

Yuan

Wang

et al. 2015

Measurement

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“…28 This system is developed to control the excitation and sensing of the PZT sensor array. The dimension of the composite plate is 610 mm 3 600 mm 3 2.16 mm.…”

Section: Evaluation On a Uniform Composite Plate Structurementioning

confidence: 99%

An improved two-dimensional multiple signal classification approach for impact localization on a composite structure

Zhong

Yuan

2015

Structural Health Monitoring

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Efficient impact monitoring techniques are important to be researched to ensure the safety of in-service composite structures. Multiple signal classification-based method is a new promising method. This method uses small aperture sensor array arrangement instead of sparse sensor arrangement. It has the advantage of easy sensor array arrangement. By processing the whole sensor array outputs using the multiple signal classification algorithm, transfer function and material property of the structure are not needed. Although some researches have shown the potential of this new method, most of the current researches have been performed based on the far-field assumption on aluminum structures. In engineering applications, composite structures are the main structures which need impact monitoring. Deep research needs to be addressed. Aiming at these problems, an improved two-dimensional near-field multiple signal classification processing algorithm is presented for impact localization on composite structure in this article. The proposed method can simultaneously estimate the impact occurring direction and distance. A uniform carbon fiber composite plate and a real aircraft oil tank made of carbon composite structure with varied thickness are adopted to evaluate the presented method. To deal with the anisotropy performance of the complex composite, the two-dimensional multiple signal classification processing algorithm is also improved by taking into account the existing anisotropy performance.

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On development of a multi-channel PZT array scanning system and its evaluating application on UAV wing box

Cited by 109 publications

References 11 publications

Research on a Lamb Wave and Particle Filter-Based On-Line Crack Propagation Prognosis Method

Research on a Lamb Wave and Particle Filter-Based On-Line Crack Propagation Prognosis Method

Determining impact induced damage by lamb wave mode extracted by EMD method

An improved two-dimensional multiple signal classification approach for impact localization on a composite structure

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