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Download or read book A Full-scale Fatigue Test of 9-m CX-10 Wind Turbine Blades written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Full-scale Fatigue Test of 9-m CX-100 Wind Turbine Blades written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Full-scale Fatigue Tests of CX-100 Wind Turbine Blades, Part I - Testing written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Full-scale Fatigue Tests of CX-100 Wind Turbine Blades, Part II - Analysis written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Mayes
Publisher : Springer Science & Business Media
ISBN 13 : 1461424216
Total Pages : 354 pages
Book Rating : 4.4/5 (614 download)
Download or read book Topics in Experimental Dynamics Substructuring and Wind Turbine Dynamics, Volume 2 written by R. Mayes and published by Springer Science & Business Media. This book was released on 2012-04-11 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in Experimental Dynamics Substructuring and Wind Turbine Dynamics, Volume 2, Proceedings of the 30th IMAC, A Conference and Exposition on Structural Dynamics, 2012, the second volume of six from the Conference, brings together 31 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics.
Download or read book Full-scale Fatigue Tests of CS-100 Wind Turbine Blades. Part 2 - Analysis written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gregg Freebury
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (438 download)
Download or read book Determining Equivalent Damage Loading for Full-scale Wind Turbine Blade Fatigue Tests written by Gregg Freebury and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gregg Freebury
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (438 download)
Download or read book Determining Equivalent Damage Loading for Full-scale Wind Turbine Blade Fatigue Tests written by Gregg Freebury and published by . This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Robert Greaves
Publisher :
ISBN 13 :
Total Pages : 289 pages
Book Rating : 4.:/5 (913 download)
Download or read book Fatigue Analysis and Testing of Wind Turbine Blades written by Peter Robert Greaves and published by . This book was released on 2013 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract:This thesis focuses on fatigue analysis and testing of large, multi MW wind turbine blades. The blades are one of the most expensive components of a wind turbine, and their mass has cost implications for the hub, nacelle, tower and foundations of the turbine so it is important that they are not unnecessarily strong. Fatigue is often an important design driver, but fatigue of composites is poorly understood and so large safety factors are often applied to the loads. This has implications for the weight of the blade. Full scale fatigue testing of blades is required by the design standards, and provides manufacturers with confidence that the blade will be able to survive its service life. This testing is usually performed by resonating the blade in the flapwise and edgewise directions separately, but in service these two loads occur at the same time. A fatigue testing method developed at Narec (the National Renewable Energy Centre) in the UK in which the flapwise and edgewise directions are excited simultaneously has been evaluated by comparing the Palmgren-Miner damage sum around the blade cross section after testing with the damage distribution caused by the service life. A method to obtain the resonant test configuration that will result in the optimum mode shapes for the flapwise and edgewise directions was then developed, and simulation software was designed to allow the blade test to be simulated so that realistic comparisons between the damage distributions after different test types could be obtained. During the course of this work the shortcomings with conventional fatigue analysis methods became apparent, and a novel method of fatigue analysis based on multi-continuum theory and the kinetic theory of fracture was developed. This method was benchmarked using physical test data from the OPTIDAT database and was applied to the analysis of a complete blade. A full scale fatigue test method based on this new analysis approach is also discussed.
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (957 download)
Download or read book Fatigue Testing of 9m Subscale Carbon Fiber Wind Turbine Research Blades written by and published by . This book was released on 2008 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Pratumnopharat Panu
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659803284
Total Pages : 208 pages
Book Rating : 4.8/5 (32 download)
Download or read book Fatigue Data Editing for Blades of Horizontal Axis Wind Turbines written by Pratumnopharat Panu and published by LAP Lambert Academic Publishing. This book was released on 2015-11-12 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: In predicting performance of wind turbines, the blade element momentum (BEM) theory is still commonly used by wind turbine designers and researchers. This book deals with several up-to-date models added to the BEM theory to get more realistic prediction. In evaluating fatigue damage of wind turbine blade, stress-life approach and Miner's linear cumulative damage rule are mentioned. Wind turbine blades are the most critical components of HAWT. Full-scale blade fatigue testing is required to verify that the blades possess the strength and service life specified in the design. Unfortunately, the test must be run for a long time period. This problem led the blade testing laboratories to accelerate fatigue testing time. To achieve the objective, two novel methods called STFT- and WT-based fatigue damage part extracting methods are used to generate the edited stress-time history. Blade testing laboratories can use this history to accelerate fatigue testing time. STFT- and WT-based fatigue damage part extracting methods proposed in this book are suggested as alternative methods in accelerating fatigue testing time, especially for the field of wind turbine engineering.
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (94 download)
Download or read book Inspection and Monitoring of Wind Turbine Blade-embedded Wave Defects During Fatigue Testing written by and published by . This book was released on 2014 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research we present in this article focuses on a 9-m CX-100 wind turbine blade, designed by a team led by Sandia National Laboratories and manufactured by TPI Composites Inc. The key difference between the 9-m blade and baseline CX-100 blades is that this blade contains fabric wave defects of controlled geometry inserted at specified locations along the blade length. The defect blade was tested at the National Wind Technology Center at the National Renewable Energy Laboratory using a schedule of cycles at increasing load level until failure was detected. Our researchers used digital image correlation, shearography, acoustic emission, fiber-optic strain sensing, thermal imaging, and piezoelectric sensing as structural health monitoring techniques. Furthermore, this article provides a comparison of the sensing results of these different structural health monitoring approaches to detect the defects and track the resultant damage from the initial fatigue cycle to final failure.
Author : J.J. Heijdra
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128089253
Total Pages : 21 pages
Book Rating : 4.1/5 (28 download)
Download or read book Advances in wind turbine blade design and materials written by J.J. Heijdra and published by Elsevier Inc. Chapters. This book was released on 2013-10-31 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: International safety and design standards for structural performance analysis require full-scale testing of each wind turbine blade prototype and of blades that have undergone major design changes. The purpose of blade testing is to demonstrate that the blade design and production are such that the blade possesses the intended strength and service life. Full-scale testing can be seen as final design verification that also checks the assumptions used in the design. In this chapter, aspects of full-scale blade testing are considered in the practical context of the blade test laboratory. An overview is given of the tests which make up the complete test program, the loads used for each and the equipment and instrumentation used.
Author : Erik Blasch
Publisher : Springer
ISBN 13 : 3319955047
Total Pages : 734 pages
Book Rating : 4.3/5 (199 download)
Download or read book Handbook of Dynamic Data Driven Applications Systems written by Erik Blasch and published by Springer. This book was released on 2018-11-13 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Dynamic Data Driven Applications Systems establishes an authoritative reference of DDDAS, pioneered by Dr. Darema and the co-authors for researchers and practitioners developing DDDAS technologies. Beginning with general concepts and history of the paradigm, the text provides 32 chapters by leading experts in10 application areas to enable an accurate understanding, analysis, and control of complex systems; be they natural, engineered, or societal: Earth and Space Data Assimilation Aircraft Systems Processing Structures Health Monitoring Biological Data Assessment Object and Activity Tracking Embedded Control and Coordination Energy-Aware Optimization Image and Video Computing Security and Policy Coding Systems Design The authors explain how DDDAS unifies the computational and instrumentation aspects of an application system, extends the notion of Smart Computing to span from the high-end to the real-time data acquisition and control, and manages Big Data exploitation with high-dimensional model coordination.
Author : Erik P. Blasch
Publisher : Springer Nature
ISBN 13 : 3030745686
Total Pages : 753 pages
Book Rating : 4.0/5 (37 download)
Download or read book Handbook of Dynamic Data Driven Applications Systems written by Erik P. Blasch and published by Springer Nature. This book was released on 2022-05-11 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Dynamic Data Driven Applications Systems establishes an authoritative reference of DDDAS, pioneered by Dr. Darema and the co-authors for researchers and practitioners developing DDDAS technologies. Beginning with general concepts and history of the paradigm, the text provides 32 chapters by leading experts in ten application areas to enable an accurate understanding, analysis, and control of complex systems; be they natural, engineered, or societal: The authors explain how DDDAS unifies the computational and instrumentation aspects of an application system, extends the notion of Smart Computing to span from the high-end to the real-time data acquisition and control, and manages Big Data exploitation with high-dimensional model coordination. The Dynamically Data Driven Applications Systems (DDDAS) paradigm inspired research regarding the prediction of severe storms. Specifically, the DDDAS concept allows atmospheric observing systems, computer forecast models, and cyberinfrastructure to dynamically configure themselves in optimal ways in direct response to current or anticipated weather conditions. In so doing, all resources are used in an optimal manner to maximize the quality and timeliness of information they provide. Kelvin Droegemeier, Regents’ Professor of Meteorology at the University of Oklahoma; former Director of the White House Office of Science and Technology Policy We may well be entering the golden age of data science, as society in general has come to appreciate the possibilities for organizational strategies that harness massive streams of data. The challenges and opportunities are even greater when the data or the underlying system are dynamic - and DDDAS is the time-tested paradigm for realizing this potential. Sangtae Kim, Distinguished Professor of Mechanical Engineering and Distinguished Professor of Chemical Engineering at Purdue University
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (14 download)
Download or read book Structural Testing of the Blade Reliability Collaborative Effect of Defect Wind Turbine Blades written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two 8.3 m wind turbine blades intentionally constructed with manufacturing flaws were tested to failure at NREL's NWTC. Two blades were tested, one blade was manufactured with a fiberglass spar cap and the second spade was manufactured with a carbon fiber spar cap. Test loading primarily consisted of fatigue loading the blades, with one quasi-static ultimate load case applied to the carbon fiber primarily consisted of flap fatigue loading of the blades, with one quasi-static ultimate load case applied to the carbon fiber spar cap blade. Results of the test program were intended to provide the full-scale test data needed for validation of model and coupon test results of the effect of defects in wind turbine blade composite materials. Testing was part of the Blade Reliability Collaborative (BRC) led by Sandia National Laboratories (SNL).
Author : M. Hancock
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (6 download)
Download or read book Fatigue Testing of 12m Wind Turbine Blades written by M. Hancock and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
