Journal ArticleDOI
Wave propagation in electromechanical structures: Induced by surface-bonded piezoelectric actuators
Xiaodong Wang,Guoliang Huang +1 more
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TLDR
In this article, the authors provided an analytical and numerical study to simulate the wave propagation in an elastic half plane with surface-bonded piezoceramic actuators under high-frequency electric loads.Abstract:
Surface-bonded piezoelectric actuators can be used to generate Rayleigh wave for monitoring surface damages of structures. This paper provides an analytical and numerical study to simulate the wave propagation in an elastic half plane with surface-bonded piezoceramic actuators under high-frequency electric loads. Based on a one dimensional actuator model, the wave propagation induced by a single actuator is studied first by using integral transform method and solving the resulting integral equations. The single actuator solution is then implemented into a Pseudo-incident wave method to study the wave propagation induced by multiple actuators. Two aspects of the work are examined. The first is concerned with the determination of the effect of the geometry, the material mismatch and the loading frequency upon the resulting waveform, while the second is concerned with the effect of the interaction between actuators upon the induced wave propagation.read more
Citations
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Journal ArticleDOI
Wave propagation modeling of the PZT sensing region for structural health monitoring
Yuhang Hu,Yaowen Yang +1 more
TL;DR: In this article, the elasticity solution of PZT generated wave propagation is derived in terms of the wave reflection and transmission matrices, and the viscoelasticity solution is obtained directly from the elastic solution.
Journal ArticleDOI
Quantitative Modeling of Coupled Piezo-Elastodynamic Behavior of Piezoelectric Actuators Bonded to an Elastic Medium for Structural Health Monitoring: A Review
TL;DR: This paper presents a review of the development of analytical, numerical and hybrid approaches for modeling of the coupled piezo-elastodynamic behavior and the resulting elastic wave propagation for structural health monitoring.
Journal ArticleDOI
Structural Health Monitoring Using High-Frequency Electromechanical Impedance Signatures
Wei Yan,W. Q. Chen +1 more
Abstract: An overview of recent advances in electromechanical impedance- (EMI-) based structural health monitoring is presented in this paper. The basic principle of the EMI method is to use high-frequency excitation to sense the local area of a structure. Changes in impedance indicate changes in the structure, which in turn indicate that damages appear. An accurate EMI model based on the method of reverberation-ray matrix is introduced to correlate changes in the signatures to physical parameters of structures for damage detection. Comparison with other numerical results and experimental data validates the present model. A brief remark of the feasibility of implementing the EMI method is considered and the effects of some physical parameters on EMI technique are also discussed.
Journal ArticleDOI
Integral equation based modeling of the interaction between piezoelectric patch actuators and an elastic substrate
TL;DR: In this article, an integral equation based model for a system of piezoelectric flexible patch actuators bonded to an elastic substrate (layer or half-space) is developed, which provides the possibility to reveal the effects of resonance energy radiation associated with higher modes that would be inaccessible using models accounting for the fundamental modes only.
Journal ArticleDOI
Application of EMI Technique for Crack Detection in Continuous Beams Adhesively Bonded with Multiple Piezoelectric Patches
TL;DR: In this article, a modified model combining EMI technique and reverberation matrix method (RMM) is proposed to quantitatively correlate crack parameters in continuous beams with high-frequency signatures for structural health monitoring.
References
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Wave propagation in elastic solids
TL;DR: In this article, the linearized theory of elasticity was introduced and the elasticity of a one-dimensional motion of an elastic continuum was modeled as an unbound elastic continuum.
Journal ArticleDOI
Use of piezoelectric actuators as elements of intelligent structures
Edward F. Crawley,Javier de Luis +1 more
TL;DR: In this paper, a scaling analysis is performed to demonstrate that the effectiveness of actuators is independent of the size of the structure and evaluate various piezoelectric materials based on their effectiveness in transmitting strain to the substructure.
Journal ArticleDOI
Distributed Piezoelectric-Polymer Active Vibration Control of a Cantilever Beam
Thomas Bailey,James E. Hubbard +1 more
TL;DR: In this article, an active vibration damper for a cantilever beam was designed using a distributed-parameter actuator and distributedparameter control theory, and preliminary testing of the damper was performed on the first mode of the beam.
Journal ArticleDOI
Detailed Models of Piezoceramic Actuation of Beams
TL;DR: In this paper, techniques for modeling induced strain actuation of beam-like components of intelligent structures are developed, including two analytical models and one numerical model describing the detailed mechanics of induced strain actuators bonded to and embedded in one-dimensional structures.
Journal ArticleDOI
Finite element analysis of composite structures containing distributed piezoceramic sensors and actuators
TL;DR: In this article, a finite element formulation is presented for modeling the dynamic as well as static response of laminated composites containing distributed piezoelectric ceramics subjected to both mechanical and electrical loadings.
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Use of piezoelectric actuators as elements of intelligent structures
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