Reference EntryDOI
Impedance‐Based Structural Health Monitoring for Aerospace Applications
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TLDR
In this article, an overview and recent applications of the impedance-based structural health-monitoring technique is presented, including self-sensing and active sensing capabilities of piezoelectric transducers, which can be monitored to provide a qualitative indication of the local health of a structure.Abstract:
Various experimental studies have demonstrated that an impedance-based approach to structural health monitoring (SHM) can be an effective means of structural damage detection. Using the self-sensing and active-sensing capabilities of piezoelectric materials, the electromechanical impedance response can be monitored to provide a qualitative indication of the local health of a structure. The impedance method also has applications in the field of sensor self-diagnostics and validation for determining the operational status of piezoelectric active sensors used in SHM. This chapter presents an overview and recent applications of the impedance-based structural health-monitoring technique.
Keywords:
damage detection;
piezoelectric transducers;
sensor validation;
impedance method;
structural health monitoring;
wave propagationsread more
Citations
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Polynomial analysis as a new way of describing dynamic impedance spectra – differential and relative impedance spectra
TL;DR: In this article , a polynomial analysis was used to describe a set of spectra, and then performed differential and division operations, which resulted in differential and relative-impedance spectra.
References
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Journal ArticleDOI
Overview of Piezoelectric Impedance-Based Health Monitoring and Path Forward
TL;DR: In this article, Niezrecki et al. summarized the hardware and software issues of impedance-based structural health modi- toring based on piezoelectric materials.
Journal ArticleDOI
Coupled Electro-Mechanical Analysis of Adaptive Material Systems — Determination of the Actuator Power Consumption and System Energy Transfer:
TL;DR: In this paper, a coupled electro-mechanical analysis of piezoelectric ceramic (PZT) actuators integrated in mechanical systems to determine the actuator power consumption and energy transfer is presented.
Journal ArticleDOI
Piezoelectric Wafer Embedded Active Sensors for Aging Aircraft Structural Health Monitoring
TL;DR: In this paper, the state-of-the-art in piezoelectric-wafer active sensors structural health monitoring and damage detection is reviewed, and two main detection strategies are considered: the E/M impedance method for near field damage detection, and wave propagation methods for far-field damage detection.
Journal ArticleDOI
Truss Structure Integrity Identification Using PZT Sensor-Actuator
TL;DR: In this article, a frequency domain impedance-signature-based technique for health monitoring of an assembled truss structure is presented. But unlike conventional modal analysis approaches, the technique uses piezoceramic (PZT) elements as integrated sensor-actuators for acquisition of signature pattern of the truss.
Journal ArticleDOI
Performance of smart piezoceramic patches in health monitoring of a RC bridge
TL;DR: In this paper, the authors present the results of a health monitoring study, carried out during the destructive load testing of a prototype reinforced concrete (RC) bridge, which represented a popular class of road bridges in which regular health monitoring is a very important issue during the service life.