Structural Health Monitoring 2013 A Roadmap To Intelligent Structures Proceedings Of The 9th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 10 12 2013 1
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Structural Health Monitoring 2013 A Roadmap To Intelligent Structures
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Author : Fu-Kuo Chang
language : en
Publisher: DEStech Publications, Inc
Release Date : 2013-09-26
Structural Health Monitoring 2013 A Roadmap To Intelligent Structures written by Fu-Kuo Chang and has been published by DEStech Publications, Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-26 with Technology & Engineering categories.
Original research on SHM sensors, quantification strategies, system integration and control for a wide range of engineered materials New applications in robotics, machinery, as well as military aircraft, railroads, highways, bridges, pipelines, stadiums, tunnels, space exploration and energy production Continuing a critical book series on structural health monitoring (SHM), this two-volume set (with full-text searchable CD-ROM) offers, as its subtitle implies, a guide to greater integration and control of SHM systems. Specifically, the volumes contain new research that will enable readers to more efficiently link sensor detection, diagnostics/quantification, overall system functionality, and automated, e.g., robotic, control, thus further closing the loop from inherent signal-based damage detection to responsive real-time maintenance and repair. SHM performance is demonstrated in monitoring the behavior of composites, metals, concrete, polymers and selected nanomaterials in a wide array of surroundings, including harsh environments, under extreme (e.g., seismic) loading and in space. New information on smart sensors and network optimization is enhanced by novel statistical and model-based methods for signal processing and data quantification. A special feature of the book is its explanation of emerging control technologies. Research in these volumes was initially presented in September 2013 at the 9th International Workshop on Structural Health Monitoring (IWSHM), held at Stanford University and sponsored by the Air Force Office of Scientific Research, the Army Research Laboratory, and the Office of Naval Research.
Structural Health Monitoring 2013 A Roadmap To Intelligent Structures Proceedings Of The 9th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 10 12 2013 1
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Author : Fu-Kuo Chang
language : en
Publisher:
Release Date : 2013
Structural Health Monitoring 2013 A Roadmap To Intelligent Structures Proceedings Of The 9th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 10 12 2013 1 written by Fu-Kuo Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
Structural Health Monitoring 2013
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Author : International Workshop on Structural Health Monitoring
language : en
Publisher:
Release Date : 2013
Structural Health Monitoring 2013 written by International Workshop on Structural Health Monitoring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Automatic data collection systems categories.
Annotation A book and searchable CD-ROM that form a guide to research and technologies that contribute to improving structural health monitoring (SHM), including actuators, multifunctional materials, networks and systems, signal processing, prognostics/CBM+, validation, certification and more.
Charakterisierung Des Strukturdynamischen Verhaltens Von Faser Metall Laminaten Unter Anregung Gef Hrter Ultraschallwellen
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Author : Liv Rittmeier
language : de
Publisher: Springer-Verlag
Release Date : 2024-08-29
Charakterisierung Des Strukturdynamischen Verhaltens Von Faser Metall Laminaten Unter Anregung Gef Hrter Ultraschallwellen written by Liv Rittmeier and has been published by Springer-Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-08-29 with Technology & Engineering categories.
Das Ziel dieses Buches ist die Charakterisierung und Beschreibung des Ausbreitungsverhaltens geführter Ultraschallwellen (GUW) in Faserverbund-Metall-Laminaten (FML). Sie gliedert sich in drei experimentelle Untersuchungen. Im ersten Experiment wird das Phasenverhältnis der Schwingungen an Strukturober – und -unterseite als Maß für die Ähnlichkeit zu den für isotrope Materialien hergeleiteten Lamb-Wellen untersucht. Dazu erfolgt die Entwicklung eines Verfahrens zum Phasenwinkelvergleich, welches auf der Continuous Wavelet Transformation sowie der Short-Time Fourier-Transformation beruht. Damit kann anhand simulierter Zeitsignalverläufe in verschiedenen Strukturen gezeigt werden, dass sich auch in FML die geführten Wellen wie klassische Lamb-Wellen ausbilden. Auch in einer experimentellen Untersuchung an einem FML kann die Beobachtungen für gleichphasige Schwingungen bestätigt und für Schwingungen mit Phasenversatz geschlussfolgert werden. Im anschließenden Experiment wird die Frage adressiert, wie sich das Wellenausbreitungsverhalten im Inneren von FML verhält. Dazu werden auf piezoelektrischem Polyvinylidenfluorid (PVDF)-basierende Foliensensoren gewählt, die sich aufgrund ihrer geringen Abmaße und ihrer geringen akustischen Impedanz gut für die möglichst rückwirkungsarme Integration in flache Strukturen aus Faserverbundkunststoff (FVK) eignen. Die erwartete Wirkweise der PVDF-Foliensensoren unter GUW-Erfassung wird erklärt. Anschließend erfolgt die experimentelle Untersuchung des FML, in deren Rahmen die Wellenmoden identifiziert werden sowie eine Abschätzung des Verschiebungsfeldverlaufes entlang der Strukturhöhe gegeben wird. Die Ergebnisse liefern einen experimentellen Hinweis auf die Modenkopplung im gewählten Laminataufbau. Das dritte und letzte Experiment liefert den konkreten Anwendungsfall der Schadensdetektion und -charakterisierung in FML. Dazu werden im Rahmen einer Parameterstudie ein Referenzlaminat sowie zwei Laminate mit künstlichen Delaminationen bei ansonsten übereinstimmendem Laminataufbau gefertigt. Ziel ist zum einen die Untersuchung, inwiefern sich eine unterschiedliche relative Höhenlage eines Schadens im Wellenfeld der FML zeigt. Zum anderen soll geprüft werden, inwiefern sich Schadensinformationen über einen integrierten Sensor erfassen lassen. Flächige Vergleichsmessungen an den Plattenoberflächen über ein Laser-Doppler-Vibrometer dienen der Abschätzung der über die integrierten PVDF-Foliensensoren und unterstützen die Auswertung. Es kann gezeigt werden, dass anhand des horizontalen Scherwellenmoden zusätzliche Schadensinformation über den integrierten Sensor gewonnen werden kann. Über Wellenausbreitungsszenarien gelingt es das Auftreten einiger Wellenpakete in den Sensorzeitsignalen über Modenkonversion zu erklären. Es erfolgt eine Zusammenfassung der Ergebnisse sowie ein Ausblick auf mögliche Folgearbeiten zu jedem Experiment.
Structural Health Monitoring 2011
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Author : Fu-Kuo Chang
language : en
Publisher: DEStech Publications, Inc
Release Date : 2011
Structural Health Monitoring 2011 written by Fu-Kuo Chang and has been published by DEStech Publications, Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Technology & Engineering categories.
This 2-volume set of books, comprising over 2,700 total pages, presents 325 fully original presentations on recent advances in structural health monitoring, as applied to commercial and military aircraft (manned and unmanned), high-rise buildings, wind turbines, civil infrastructure, power plants and ships. One general theme of the books is how SHM can be used for condition-based maintenance, with the goal of developing prediction-based systems, designed to save money over the life of vehicles and structures. A second theme centers on technologies for developing systems comprising sensors, diagnostic data and decision-making, with a focus on intelligent materials able to respond to damage and in some cases repair it. Finally the books discuss the relation among data, data interpretation and decision-making in managing a wide variety of complex structures and vehicles. More recent technologies discussed in the books include SHM and environmental effects, energy harvesting, non-contact sensing, and intelligent networks.Material in these books was first presented in September, 2011 at a conference held at Stanford University and sponsored by the Air Force Office of Scientific Research, the Army Research Office, the Office of Naval Research and the National Science Foundation. Some of the highlights of the books include: SHM technologies for condition-based maintenance (CBM) and predictive maintenance Verification, validation, qualification, data mining, prognostics systems for decision-making Structural health, sensing and materials in closed-loop intelligent networks Military and aerospace, bioinspired sensors, wind turbines, monitoring with MEMS, damage sensing, hot spot monitoring, SHM and ships, high-rise structures Includes a fully-searchable CD-ROM displaying many figures and charts in full color
Structural Health Monitoring 2011 Condition Based Maintenance And Intelligent Structures Proceedings Of The 8th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 13 15 2011 2
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Author : Fu-Kuo Chang
language : en
Publisher:
Release Date : 2011
Structural Health Monitoring 2011 Condition Based Maintenance And Intelligent Structures Proceedings Of The 8th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 13 15 2011 2 written by Fu-Kuo Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Automatic data collection systems categories.
Structural Health Monitoring 2011
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Author : Fu-Kuo Chang
language : en
Publisher:
Release Date : 2011
Structural Health Monitoring 2011 written by Fu-Kuo Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Automatic data collection systems categories.
Structural Health Monitoring 2011 Condition Based Maintenance And Intelligent Structures Proceedings Of The 8th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 13 15 2011 2
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Author : Fu-Kuo Chang
language : en
Publisher:
Release Date : 2011
Structural Health Monitoring 2011 Condition Based Maintenance And Intelligent Structures Proceedings Of The 8th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 13 15 2011 2 written by Fu-Kuo Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Structural Health Monitoring 2005 Advancements And Challenges For Implementation Proceedings Of The 5th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 12 14 2005
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Author : Fu-Kuo Chang
language : en
Publisher:
Release Date : 2005
Structural Health Monitoring 2005 Advancements And Challenges For Implementation Proceedings Of The 5th International Workshop On Structural Health Monitoring Stanford University Stanford Ca September 12 14 2005 written by Fu-Kuo Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Automatic data collection systems categories.
Structural Health Monitoring 2003
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Author : Fu-Kuo Chang
language : en
Publisher: DEStech Publications, Inc
Release Date : 2003
Structural Health Monitoring 2003 written by Fu-Kuo Chang and has been published by DEStech Publications, Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Technology & Engineering categories.
Important new information on sensors, monitoring, prognosis, networking, and planning for safety and maintenance.