An Experimental and Numerical Study of Wind Turbine Seismic Behavior

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ISBN 13 : 9781124576923
Total Pages : 280 pages
Book Rating : 4.5/5 (769 download)

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Book Synopsis An Experimental and Numerical Study of Wind Turbine Seismic Behavior by : Ian Prowell

Download or read book An Experimental and Numerical Study of Wind Turbine Seismic Behavior written by Ian Prowell and published by . This book was released on 2011 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation presents an experimental and numerical investigation into the seismic response of modern wind turbines. Currently, no consensus exists in the industry and there is significant interest in improving prediction of the behavior of wind turbines simultaneously subjected to wind, earthquake, and operational excitation. To this end, an experimental program was planned in order to evaluate seismic loading of wind turbines. In 2004, a preliminary shake table test of a 65-kW utility scale wind turbine was conducted that provided an experimental basis to begin the work discussed herein. A monitoring campaign was performed at Oak Creek Energy Systems in Mojave, California to assess variability of in-situ dynamic characteristics of two modern wind turbines (900-kW and 1.5-MW rated power) under different operational states and wind conditions. A second shake table experiment with a more extensive test program and improved instrumentation was executed, in which orientation of shaking and operational state were found to significantly influence response. Using the finite element program OpenSees, beam-column models of the tested specimens were constructed and calibrated. Collected data provided a basis to show that such a model could reproduce salient characteristics including natural frequencies, mode shapes, and dynamic response time histories for a parked turbine. In-situ results were used to guide construction of full turbine-foundation-soil models that provided insight into soil-structure interaction phenomena. An existing tool to simulate turbine dynamics, the FAST code, was extended to include seismic loading to allow simulation of operational turbines subjected to base shaking and validated based on shake table results. Using a calibrated model of the tested 900-kW turbine it is shown that neglecting aerodynamics results in significant over estimation of the tower bending demand. An investigation of turbines ranging from 65-kW to 5-MW concluded that consideration of aerodynamics and operational state becomes increasingly important with size. The updated FAST code was demonstrated to accurately reproduce observed dynamics of operating turbines, providing a validated tool for seismic design of turbines. These contributions clarify that operational state and orientation of shaking are important considerations and enable the development of a new generation of turbines that appropriately consider seismic loads.

Experimental and Numerical Analysis of Seismic Waves Produced by Wind Farms

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)

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Book Synopsis Experimental and Numerical Analysis of Seismic Waves Produced by Wind Farms by : Fabian Limberger

Download or read book Experimental and Numerical Analysis of Seismic Waves Produced by Wind Farms written by Fabian Limberger and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Experimental and Numerical Seismic Response of Offshore Wind Turbines Supported on Bucket Foundations

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ISBN 13 :
Total Pages : 555 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Experimental and Numerical Seismic Response of Offshore Wind Turbines Supported on Bucket Foundations by : Muhammad Zayed

Download or read book Experimental and Numerical Seismic Response of Offshore Wind Turbines Supported on Bucket Foundations written by Muhammad Zayed and published by . This book was released on 2022 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bucket foundations have proven to be an efficient cost-effective option for a wide range of offshore applications. Motivated by the strong growth in offshore wind energy, this dissertation aims to investigate the seismic response of bucket foundations. A scaled soil-structure model of a 3.45 Megawatt (MW) utility-scale Offshore Wind Turbine (OWT) was tested on medium-size 1-g shake table. A preliminary testing phase resulted in developing new approaches for: i) tracking shear wave velocity variation within the ground during seismic excitation, and ii) generating accumulated ground deformation via asymmetric base shaking. Thereafter, the OWT model was subjected to a series of harmonic and earthquake-like excitations. From the collected data, key features of the overall system response were gleaned. Utilizing the experimental data, a nonlinear finite element (FE) model was calibrated to simulate the observed seismic response. The developed FE model was then extended to investigate the seismic behavior of a representative utility-scale OWT in sands under earthquake motions, combined with operational wind load effects. A parametric study is conducted to investigate influence of: i) soil stiffness and strength, ii) ground motion characteristics, iii) soil permeability, iv) bucket size, and v) damping on the OWT seismic response. The results suggest that: i) the near field pore water pressure build-up and bucket rotation are correlated, ii) ground motion characteristics have direct impact on the permanent bucket rotation, iii) lower soil permeability results in larger rotation due to the higher near field pore water pressure build-up, iv) permanent bucket rotation tends to reach a maximum and a minimum at the lower and upper bounds of soil permeability, respectively, reflecting the fully drained and undrained conditions, v) the difference in permanent bucket rotation between undrained and drained conditions tends to decrease with increasing soil stiffness, vi) Within the range of investigated scenarios, an essentially linear correlation was noted between the OWT fundamental frequency and the permanent bucket rotation, and vii) viscous damping at higher frequencies might have a significant effect on the bucket moment rotation response. As such, the gained insights provide guidance for seismic design of bucket foundation offshore wind turbines.

Proceedings of the 2022 International Conference on Green Building, Civil Engineering and Smart City

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Publisher : Springer Nature
ISBN 13 : 9811952175
Total Pages : 1285 pages
Book Rating : 4.8/5 (119 download)

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Book Synopsis Proceedings of the 2022 International Conference on Green Building, Civil Engineering and Smart City by : Wei Guo

Download or read book Proceedings of the 2022 International Conference on Green Building, Civil Engineering and Smart City written by Wei Guo and published by Springer Nature. This book was released on 2022-09-07 with total page 1285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book of the conference proceedings focuses on innovative design, technology and methods in the fields of building, civil engineering and smart city. It contains a large number of detailed design, construction and performance analysis charts, benefited to students, teachers, research scholars and other professionals in related fields. As well, readers will encounter new ideas for realizing more safe, intelligent and economical buildings.

Structural Analysis and Design of Tall Buildings

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Publisher : CRC Press
ISBN 13 : 1439850909
Total Pages : 713 pages
Book Rating : 4.4/5 (398 download)

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Book Synopsis Structural Analysis and Design of Tall Buildings by : Bungale S. Taranath

Download or read book Structural Analysis and Design of Tall Buildings written by Bungale S. Taranath and published by CRC Press. This book was released on 2016-04-19 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: As software skills rise to the forefront of design concerns, the art of structural conceptualization is often minimized. Structural engineering, however, requires the marriage of artistic and intuitive designs with mathematical accuracy and detail. Computer analysis works to solidify and extend the creative idea or concept that might have started o

Experimental Vibration Analysis for Civil Engineering Structures

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Publisher : Springer Nature
ISBN 13 : 3031391098
Total Pages : 800 pages
Book Rating : 4.0/5 (313 download)

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Book Synopsis Experimental Vibration Analysis for Civil Engineering Structures by : Maria Pina Limongelli

Download or read book Experimental Vibration Analysis for Civil Engineering Structures written by Maria Pina Limongelli and published by Springer Nature. This book was released on 2023-09-02 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents peer-reviewed contributions from the 10th International Conference on Experimental Vibration Analysis for Civil Engineering Structures (EVACES), held in Milan, Italy on August 30-September 1, 2023. The event brought together engineers, scientists, researchers, and practitioners, providing a forum for discussing and disseminating the latest developments and achievements in all major aspects of dynamic testing for civil engineering structures, including instrumentation, sources of excitation, data analysis, system identification, monitoring and condition assessment, in-situ and laboratory experiments, codes and standards, and vibration mitigation. The topics included but were not limited to: damage identification and structural health monitoring; testing, sensing and modeling; vibration isolation and control; system and model identification; coupled dynamical systems (including human–structure, vehicle–structure, and soil–structure interaction); and application of advanced techniques involving the Internet of Things, robot, UAV, big data and artificial intelligence.

Dynamic Response Analysis of a 900 KW Wind Turbine Subject to Ground Excitation

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ISBN 13 : 9781267904171
Total Pages : 132 pages
Book Rating : 4.9/5 (41 download)

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Book Synopsis Dynamic Response Analysis of a 900 KW Wind Turbine Subject to Ground Excitation by : Adrian Felix Caudillo

Download or read book Dynamic Response Analysis of a 900 KW Wind Turbine Subject to Ground Excitation written by Adrian Felix Caudillo and published by . This book was released on 2012 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis exhibits the results of a study focused on the seismic behavior of a 900 kW wind turbine. As of the time of this writing, special engineering provisions for such loading events are not adequately defined. In order to accomplish the research objective, the author relies on available experimental data taken in 2009 from accelerometers attached to a wind turbine base and tower along with an eccentric mass shaker placed on the turbine foundation. On this basis, the dynamic properties of the wind turbine, including tower bending modes and natural frequencies were extracted. An attempt was made to quantify the damping ratios found in these bending modes by applying input shaking simulating the experimental excitation using the finite element program OpenSees. In this undertaking, possible sources of error are discussed. The author then describes a numerical study performed on a calibrated wind turbine like structure involving the application of a large range of actual recorded input motions. Adjustments are made to the original fixed-base model, placing the structure on a linearly elastic soil domain by using BridgePBEE, a graphical interface tool that eases simulation and functions as a pre and post processor. Using this code, the numerical study is further extended by varying the supporting ground stiffness. The study then compares the tower maximal shear and moment values for the studied rigid and flexible ground scenarios and explores trends in the lateral force lever-arm of the system.

Offshore Mechanics

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Publisher : John Wiley & Sons
ISBN 13 : 1119216621
Total Pages : 305 pages
Book Rating : 4.1/5 (192 download)

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Book Synopsis Offshore Mechanics by : Madjid Karimirad

Download or read book Offshore Mechanics written by Madjid Karimirad and published by John Wiley & Sons. This book was released on 2018-05-07 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers theoretical concepts in offshore mechanics with consideration to new applications, including offshore wind farms, ocean energy devices, aquaculture, floating bridges, and submerged tunnels This comprehensive book covers important aspects of the required analysis and design of offshore structures and systems and the fundamental background material for offshore engineering. Whereas most of the books currently available in the field use traditional oil, gas, and ship industry examples in order to explain the fundamentals in offshore mechanics, this book uses more recent applications, including recent fixed-bottom and floating offshore platforms, ocean energy structures and systems such as wind turbines, wave energy converters, tidal turbines and hybrid marine platforms. Offshore Mechanics covers traditional and more recent methodologies used in offshore structure modelling (including SPH and hydroelasticity models). It also examines numerical techniques, including computational fluid dynamics and finite element method. Additionally, the book features easy-to-understand exercises and examples. Provides a comprehensive treatment for the case of recent applications in offshore mechanics for researchers and engineers Presents the subject of computational fluid dynamics (CFD) and finite element methods (FEM) along with the high fidelity numerical analysis of recent applications in offshore mechanics Offers insight into the philosophy and power of numerical simulations and an understanding of the mathematical nature of the fluid and structural dynamics with focus on offshore mechanic applications Offshore Mechanics: Structural and Fluid Dynamics for Recent Applications is an important book for graduate and senior undergraduate students in offshore engineering and for offshore engineers and researchers in the offshore industry.

Experimental and Numerical Study of a Vertical Axis Tidal Turbine Performance

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (15 download)

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Book Synopsis Experimental and Numerical Study of a Vertical Axis Tidal Turbine Performance by :

Download or read book Experimental and Numerical Study of a Vertical Axis Tidal Turbine Performance written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of XXIV AIMETA Conference 2019

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Publisher : Springer Nature
ISBN 13 : 3030410579
Total Pages : 2200 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Proceedings of XXIV AIMETA Conference 2019 by : Antonio Carcaterra

Download or read book Proceedings of XXIV AIMETA Conference 2019 written by Antonio Carcaterra and published by Springer Nature. This book was released on 2020-03-31 with total page 2200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers the peer-reviewed papers presented at the XXIV Conference of the Italian Association of Theoretical and Applied Mechanics, held in Rome, Italy, on September 15-19, 2019 (AIMETA 2019). The conference topics encompass all aspects of general, fluid, solid and structural mechanics, as well as mechanics for machines and mechanical systems, including theoretical, computational and experimental techniques and technological applications. As such the book represents an invaluable, up-to-the-minute tool, providing an essential overview of the most recent advances in the field.

Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions

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Publisher : CRC Press
ISBN 13 : 0429632010
Total Pages : 8083 pages
Book Rating : 4.4/5 (296 download)

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Book Synopsis Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions by : Francesco Silvestri

Download or read book Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions written by Francesco Silvestri and published by CRC Press. This book was released on 2019-07-19 with total page 8083 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions contains invited, keynote and theme lectures and regular papers presented at the 7th International Conference on Earthquake Geotechnical Engineering (Rome, Italy, 17-20 June 2019. The contributions deal with recent developments and advancements as well as case histories, field monitoring, experimental characterization, physical and analytical modelling, and applications related to the variety of environmental phenomena induced by earthquakes in soils and their effects on engineered systems interacting with them. The book is divided in the sections below: Invited papers Keynote papers Theme lectures Special Session on Large Scale Testing Special Session on Liquefact Projects Special Session on Lessons learned from recent earthquakes Special Session on the Central Italy earthquake Regular papers Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions provides a significant up-to-date collection of recent experiences and developments, and aims at engineers, geologists and seismologists, consultants, public and private contractors, local national and international authorities, and to all those involved in research and practice related to Earthquake Geotechnical Engineering.

Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022)

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Publisher : Springer Nature
ISBN 13 : 3031118987
Total Pages : 2417 pages
Book Rating : 4.0/5 (311 download)

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Book Synopsis Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022) by : Lanmin Wang

Download or read book Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022) written by Lanmin Wang and published by Springer Nature. This book was released on 2022-09-19 with total page 2417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 4th International Conference on Performance-based Design in Earthquake Geotechnical Engineering (PBD-IV) is held in Beijing, China. The PBD-IV Conference is organized under the auspices of the International Society of Soil Mechanics and Geotechnical Engineering - Technical Committee TC203 on Earthquake Geotechnical Engineering and Associated Problems (ISSMGE-TC203). The PBD-I, PBD-II, and PBD-III events in Japan (2009), Italy (2012), and Canada (2017) respectively, were highly successful events for the international earthquake geotechnical engineering community. The PBD events have been excellent companions to the International Conference on Earthquake Geotechnical Engineering (ICEGE) series that TC203 has held in Japan (1995), Portugal (1999), USA (2004), Greece (2007), Chile (2011), New Zealand (2015), and Italy (2019). The goal of PBD-IV is to provide an open forum for delegates to interact with their international colleagues and advance performance-based design research and practices for earthquake geotechnical engineering.

Advances in Structural Mechanics and Applications

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Publisher : Springer Nature
ISBN 13 : 3031047931
Total Pages : 438 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Advances in Structural Mechanics and Applications by : José António Fonseca de Oliveira Correia

Download or read book Advances in Structural Mechanics and Applications written by José António Fonseca de Oliveira Correia and published by Springer Nature. This book was released on 2022-06-02 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the conference is going to benefit the researchers, academicians, students and professionals in getting enlightened on latest technologies on structural mechanics, structure and infrastructure engineering. Further, work on practical applications of developed scientific methodologies to civil structural engineering will make the proceedings more interesting and useful to practicing engineers and structural designers.

Design of Foundations for Offshore Wind Turbines

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Publisher : John Wiley & Sons
ISBN 13 : 1119128129
Total Pages : 387 pages
Book Rating : 4.1/5 (191 download)

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Book Synopsis Design of Foundations for Offshore Wind Turbines by : Subhamoy Bhattacharya

Download or read book Design of Foundations for Offshore Wind Turbines written by Subhamoy Bhattacharya and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

ICCS19 19th International Conference on Composite Structures

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Publisher : Società Editrice Esculapio
ISBN 13 : 8874889771
Total Pages : 212 pages
Book Rating : 4.8/5 (748 download)

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Book Synopsis ICCS19 19th International Conference on Composite Structures by : Antonio J.M. Ferreira

Download or read book ICCS19 19th International Conference on Composite Structures written by Antonio J.M. Ferreira and published by Società Editrice Esculapio. This book was released on 2016-08-01 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, it is quite easy to see various applications of fibrous composites, functionally graded materials, laminated composite, nano-structured reinforcement, morphing composites, in many engineering fields, such as aerospace, mechanical, naval and civil engineering. The increase in the use of composite structures in different engineering practices justify the present international meeting where researches from every part of the globe can share and discuss the recent advancements regarding the use of standard structural components within advanced applications such as buckling, vibrations, repair, reinforcements, concrete, composite laminated materials and more recent metamaterials. For this reason, the establishment of this 19th edition of International Conference on Composite Structures has appeared appropriate to continue what has been begun during the previous editions. ICCS wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures, sandwich panels, nanotechnology, bio-composites, delamination and fracture, experimental methods, manufacturing and other countless topics that have filled many sessions during this conference. As a proof of this event, which has taken place in Porto (Portugal), selected plenary and keynote lectures have been collected in the present book.

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 994 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Innovation in Smart and Sustainable Infrastructure, Volume 2

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Publisher : Springer Nature
ISBN 13 : 9819739942
Total Pages : 736 pages
Book Rating : 4.8/5 (197 download)

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Book Synopsis Innovation in Smart and Sustainable Infrastructure, Volume 2 by : Dhruvesh Patel

Download or read book Innovation in Smart and Sustainable Infrastructure, Volume 2 written by Dhruvesh Patel and published by Springer Nature. This book was released on with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: