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Structural Health Monitoring
ISBN-13:
9780080556796
Veröffentl:
2007
Seiten:
760
Autor:
Victor Giurgiutiu
eBook Typ:
EPUB
eBook Format:
EPUB
Kopierschutz:
2 - DRM Adobe
Sprache:
Englisch
Beschreibung:
. Addresses the problem of aging structures and explains how SHM can alleviate their situation and prolong their useful life.. Provides a step by step presentation on how Piezoelectric Wafer Active Sensors (PWAS) are used to detect and quantify the presence of damage in structures.. Presents the underlying theories (piezoelectricity, vibration, wave propagation, etc.) and experimental techniques (E/M impedance, PWAS phased arrays, etc.) to be employed in successful SHM applications.. Provides an understanding of how to interpret sensor signal patterns such as various wave forms, including analytical techniques like Fast Fourier Transform, Short-time Fourier Transform and Wavelet Transform.
1. Introduction; 2. Electroactive and Magnetoactive Materials; 3. Vibration of Solids and Structures; 4. Vibration of Plates; 5. Elastic Waves in Solids and Structures; 6. Guided Waves; 7. Piezoelectric Wafer Active Sensors; 8. Tuned Waves Generated with Piezoelectric Wafer Active Sensors; 9. High-Frequency Vibration SHM with PWAS Modal Sensors: The Electromechanical (E/M) Impedance Method; 10. Wave Propagation SHM with PWAS; 11. In-Situ Phased Arrays with Piezoelectric Wafer Active Sensors; 12. Signal Processing and Pattern Recognition for PWAS-based Structural Health Monitoring; Appendix A. Mathematical Prerequisites; Appendix B. Elasticity Notations and Equations
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