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Structural Health Monitoring of Onshore Wind Turbine Foundations

Structural Health Monitoring of Onshore Wind Turbine Foundations
Author: Jack McAlorum
Publisher:
Total Pages: 0
Release: 2018
Genre:
ISBN:

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Regarding onshore wind turbines, the supporting concrete foundations represent an integral structural feature, where failure could cause collapse of the entire turbine. Severe cracks on such foundations are, therefore, of great concern to turbine operators. SHM of such foundation cracks may provide a more detailed insight into the lifetime of the turbine as a whole. Sub-surface cracks are conventionally monitored using intermittent excavation and visual inspections that are carried out during turbine downtime.


Structural Health Monitoring of Wind Turbine Foundations Using a Wireless Sensor Network

Structural Health Monitoring of Wind Turbine Foundations Using a Wireless Sensor Network
Author: Magnus Currie
Publisher:
Total Pages: 0
Release: 2014
Genre:
ISBN:

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Wind turbine foundations, that incorporate the 'embedded can' type tower/foundation connections, have been reported as showing significant evidence of vertical displacement at a number of wind farm sites. The 'embedded can' and connected tower sections in these reports have been observed to be moving up to 20mm or more in some instances. This poses a serious safety concern for the operator and action is needed to monitor and remedy the problem. There is currently no real-time, structural health monitoring system in place recording movement. The aim of the study was to develop and evaluate a novel wireless structural health monitoring system for an operator to facilitate monitoring of such movements, mapping and quantifying the displacement patterns and subsequently alerting any significant foundation events. Development of a novel displacement sensor array, connected to a wireless gateway and positioned in the bottom of an operational 2MW wind turbine offered a useful test article to evaluate the performance of the displacement sensors and the monitoring solution to track such movements. The results showed that the foundation was displacing vertically, especially during periods of significant gusting and during 'cut in' and 'cut out' periods. Results also show the effect of rotor acceleration and wind direction upon the level and pattern of displacement. This low cost monitoring solution would be easily 'retro- fittable' to track reliability and improve safety.


Structural Health Monitoring 2011

Structural Health Monitoring 2011
Author: Fu-Kuo Chang
Publisher: DEStech Publications, Inc
Total Pages: 1397
Release: 2011
Genre: Technology & Engineering
ISBN: 160595053X

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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

Structural Health Monitoring
Author: Charles R. Farrar
Publisher: John Wiley & Sons
Total Pages: 735
Release: 2012-11-19
Genre: Technology & Engineering
ISBN: 1118443217

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Written by global leaders and pioneers in the field, this book is a must-have read for researchers, practicing engineers and university faculty working in SHM. Structural Health Monitoring: A Machine Learning Perspective is the first comprehensive book on the general problem of structural health monitoring. The authors, renowned experts in the field, consider structural health monitoring in a new manner by casting the problem in the context of a machine learning/statistical pattern recognition paradigm, first explaining the paradigm in general terms then explaining the process in detail with further insight provided via numerical and experimental studies of laboratory test specimens and in-situ structures. This paradigm provides a comprehensive framework for developing SHM solutions. Structural Health Monitoring: A Machine Learning Perspective makes extensive use of the authors’ detailed surveys of the technical literature, the experience they have gained from teaching numerous courses on this subject, and the results of performing numerous analytical and experimental structural health monitoring studies. Considers structural health monitoring in a new manner by casting the problem in the context of a machine learning/statistical pattern recognition paradigm Emphasises an integrated approach to the development of structural health monitoring solutions by coupling the measurement hardware portion of the problem directly with the data interrogation algorithms Benefits from extensive use of the authors’ detailed surveys of 800 papers in the technical literature and the experience they have gained from teaching numerous short courses on this subject.


Innovation in Smart Materials and Structural Health Monitoring for Composite Applications

Innovation in Smart Materials and Structural Health Monitoring for Composite Applications
Author: F. Mustapha
Publisher: Materials Research Forum LLC
Total Pages: 184
Release: 2017-05-05
Genre: Technology & Engineering
ISBN: 194529129X

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Structural health monitoring (SHM) is an automated approach to determine any changes in the integrity of mechanical systems. The SHM system gives information in real time and online. The book explains and discusses the advantages of Root Mean Square Deviation (RMSD) techniques. Special focus is placed on applications of structural health monitoring of bio-composite turbine blades for vertical axis wind turbines.


European Workshop on Structural Health Monitoring

European Workshop on Structural Health Monitoring
Author: Piervincenzo Rizzo
Publisher: Springer Nature
Total Pages: 933
Release: 2022-06-18
Genre: Technology & Engineering
ISBN: 3031072545

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This volume gathers the latest advances, innovations, and applications in the field of structural health monitoring (SHM) and more broadly in the fields of smart materials and intelligent systems, as presented by leading international researchers and engineers at the 10th European Workshop on Structural Health Monitoring (EWSHM), held in Palermo, Italy on July 4-7, 2022. The volume covers highly diverse topics, including signal processing, smart sensors, autonomous systems, remote sensing and support, UAV platforms for SHM, Internet of Things, Industry 4.0, and SHM for civil structures and infrastructures. The contributions, which are published after a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists.


Design of Foundations for Offshore Wind Turbines

Design of Foundations for Offshore Wind Turbines
Author: Subhamoy Bhattacharya
Publisher: John Wiley & Sons
Total Pages: 387
Release: 2019-04-29
Genre: Technology & Engineering
ISBN: 1119128129

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Comprehensive reference covering the design of foundations for offshore wind turbines As the demand for “green” energy increases the offshore wind power industry is expanding at a rapid pace around the world. Design of Foundations for Offshore Wind Turbines is a comprehensive reference which covers the design of foundations for offshore wind turbines, and includes examples and case studies. It provides an overview of a wind farm and a wind turbine structure, and examines the different types of loads on the offshore wind turbine structure. Foundation design considerations and the necessary calculations are also covered. The geotechnical site investigation and soil behavior/soil structure interaction are discussed, and the final chapter takes a case study of a wind turbine and demonstrates how to carry out step by step calculations. Key features: New, important subject to the industry. Includes calculations and case studies. Accompanied by a website hosting software and data files. Design of Foundations for Offshore Wind Turbines is a must have reference for engineers within the renewable energy industry and is also a useful guide for graduate students in this area.


Structural Health Monitoring 2015

Structural Health Monitoring 2015
Author: Fu-Kuo Chang
Publisher: DEStech Publications, Inc
Total Pages: 1644
Release: 2015-10-01
Genre: Technology & Engineering
ISBN: 1605952753

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Proceedings of the Tenth International Workshop on Structural Health Monitoring, September 1–3, 2015. Selected research on the entire spectrum of structural health techniques and areas of applicationAvailable in print, complete online text download or individual articles. Series book comprising two volumes provides selected international research on the entire spectrum of structural health monitoring techniques used to diagnose and safeguard aircraft, vehicles, buildings, civil infrastructure, ships and railroads, as well as their components such as joints, bondlines, coatings and more. Includes special sections on system design, signal processing, multifunctional materials, sensor distribution, embedded sensors for monitoring composites, reliability and applicability in extreme environments. The extensive contents can be viewed below.


Wind Energy Handbook

Wind Energy Handbook
Author: Tony Burton
Publisher: John Wiley & Sons
Total Pages: 784
Release: 2011-06-13
Genre: Technology & Engineering
ISBN: 0470699752

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Named as one of Choice's Outstanding Academic Titles of 2012 Every year, Choice subject editors recognise the most significant print and electronic works reviewed in Choice during the previous calendar year. Appearing annually in Choice's January issue, this prestigious list of publications reflects the best in scholarly titles and attracts extraordinary attention from the academic library community. The authoritative reference on wind energy, now fully revised and updated to include offshore wind power A decade on from its first release, the Wind Energy Handbook, Second Edition, reflects the advances in technology underpinning the continued expansion of the global wind power sector. Harnessing their collective industrial and academic expertise, the authors provide a comprehensive introduction to wind turbine design and wind farm planning for onshore and offshore wind-powered electricity generation. The major change since the first edition is the addition of a new chapter on offshore wind turbines and offshore wind farm development. Opening with a survey of the present state of offshore wind farm development, the chapter goes on to consider resource assessment and array losses. Then wave loading on support structures is examined in depth, including wind and wave load combinations and descriptions of applicable wave theories. After sections covering optimum machine size and offshore turbine reliability, the different types of support structure deployed to date are described in turn, with emphasis on monopiles, including fatigue analysis in the frequency domain. Final sections examine the assessment of environmental impacts and the design of the power collection and transmission cable network. New coverage features: turbulence models updated to reflect the latest design standards, including an introduction to the Mann turbulence model extended treatment of horizontal axis wind turbines aerodynamics, now including a survey of wind turbine aerofoils, dynamic stall and computational fluid dynamics developments in turbine design codes techniques for extrapolating extreme loads from simulation results an introduction to the NREL cost model comparison of options for variable speed operation in-depth treatment of individual blade pitch control grid code requirements and the principles governing the connection of large wind farms to transmission networks four pages of full-colour pictures that illustrate blade manufacture, turbine construction and offshore support structure installation Firmly established as an essential reference, Wind Energy Handbook, Second Edition will prove a real asset to engineers, turbine designers and wind energy consultants both in industry and research. Advanced engineering students and new entrants to the wind energy sector will also find it an invaluable resource.


Future of wind

Future of wind
Author: International Renewable Energy Agency IRENA
Publisher: International Renewable Energy Agency (IRENA)
Total Pages: 161
Release: 2019-10-01
Genre: Technology & Engineering
ISBN: 9292601970

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This study presents options to speed up the deployment of wind power, both onshore and offshore, until 2050. It builds on IRENA’s global roadmap to scale up renewables and meet climate goals.