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Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The objective of this effort was to investigate and characterize the nature of surface damage and wear to wind turbine gearbox bearings returned from service in the field. Bearings were supplied for examination by S. Butterfield and J. Johnson of the National Wind Technology Center (NREL), Boulder, Colorado. Studies consisted of visual examination, optical and electron microscopy, dimensional measurements of wear-induced macro-scale and micro-scale features, measurements of macro- and micro-scale hardness, 3D imaging of surface damage, studies of elemental distributions on fracture surfaces, and examinations of polished cross-sections of surfaces under various etched and non-etched conditions.
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The objective of this effort was to investigate and characterize the nature of surface damage and wear to wind turbine gearbox bearings returned from service in the field. Bearings were supplied for examination by S. Butterfield and J. Johnson of the National Wind Technology Center (NREL), Boulder, Colorado. Studies consisted of visual examination, optical and electron microscopy, dimensional measurements of wear-induced macro-scale and micro-scale features, measurements of macro- and micro-scale hardness, 3D imaging of surface damage, studies of elemental distributions on fracture surfaces, and examinations of polished cross-sections of surfaces under various etched and non-etched conditions.
Author: Peter J. Blau Publisher: CRC Press ISBN: 1315354659 Category : Technology & Engineering Languages : en Pages : 226
Book Description
Tribosystem Analysis: A Practical Approach to the Diagnosis of Wear Problems provides a systematic framework for conducting root cause analyses and categorizing various types of wear. Designed specifically for engineers without formal training in tribology, this book: Describes a number of direct and indirect methods for detecting and quantifying wear problems Surveys different microscopy techniques, including those for light optics, electron optics, and acoustic imaging Discusses the selection of wear and friction test methods, both standard and custom, identifying possible pitfalls for misuse Presents practical examples involving complex materials and environments, such as those with variable loads and operating conditions Uses universally accepted terminology to create consistency along with the potential to recognize similar problems and apply comparable solutions Complete with checklists to ensure the right questions are asked during diagnosis, Tribosystem Analysis: A Practical Approach to the Diagnosis of Wear Problems offers pragmatic guidance for defining wear problems in the context of the materials and their surroundings.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
The scope of 'Wear Debris Collection and Analysis for Wind Turbine Gearboxes' addresses offline oil wear debris collection and analysis methods. This guide provides recommended practices for offline oil wear debris collection and analysis methods that may be utilized to assess the health of a wind turbine gearbox by examining particles captured in the lubricant.
Author: C. Guedes Soares Publisher: CRC Press ISBN: 1315647850 Category : Technology & Engineering Languages : en Pages : 1030
Book Description
Renewable Energies Offshore includes the papers presented in the 1st International Conference on Renewable Energies Offshore (RENEW2014), held in Lisbon, 24-26 November 2014. The conference is a consequence of the importance of the offshore renewable energies worldwide and an opportunity to contribute to the exchange of information on the dev
Author: Abdel Salam Hamdy Makhlouf Publisher: Butterworth-Heinemann ISBN: 0081001258 Category : Technology & Engineering Languages : en Pages : 479
Book Description
Handbook of Materials Failure Analysis: With Case Studies from the Chemicals, Concrete and Power Industries provides an in-depth examination of materials failure in specific situations, a vital component in both developing and engineering new solutions. This handbook covers analysis of materials failure in the chemical, power, and structures arenas, where the failure of a single component can result in devastating consequences and costs. Material defects, mechanical failure as a result of improper design, corrosion, surface fracture, and other failure mechanisms are described in the context of real world case studies involving steam generators, boiler tubes, gas turbine blades, welded structures, chemical conversion reactors and more. This book is an indispensable reference for engineers and scientists studying the mechanisms of failure in these fields. Introduces readers to modern analytical techniques in materials failure analysis Combines foundational knowledge with current research on the latest developments and innovations in the field Includes many compelling case studies of materials failure in chemical processing plants, concrete structures, and power generation systems
Author: Aaron Paul Thaler Publisher: ISBN: Category : Languages : en Pages : 114
Book Description
Abstract: In this study, a high fidelity finite element model of a wind turbine gearbox is constructed in an advanced gear analysis program. The 3-dimensional fully elastic model is used to analyze motions and stresses occurring in a typical modern wind turbine gearbox. The model is validated using simple loading conditions by looking at shaft deflection and bearing stiffnesses. Analysis results are compared with experimental data provided by the National Renewable Energy Laboratory. Main shaft bending strain for multiple load levels is used to understand the effect of non-torque loads on the gearbox. Load distribution of the ring gear is evaluated experimentally by placing strain gages in the root of the gear tooth and compared with predictions from the finite element model. Since micro-pitting of the gears and bearings is a major failure mode of wind turbine gearboxes, the contact stresses and load distributions of the planetary gears and planet bearings are studied to understand the component's resistance to micro-pitting. These results seek to provide insight into possible ways to improve the life and reliability in the current wind turbine gearbox design.
Author: Olimpo Anaya-Lara Publisher: John Wiley & Sons ISBN: 1119097789 Category : Science Languages : en Pages : 459
Book Description
A COMPREHENSIVE REFERENCE TO THE MOST RECENT ADVANCEMENTS IN OFFSHORE WIND TECHNOLOGY Offshore Wind Energy Technology offers a reference based on the research material developed by the acclaimed Norwegian Research Centre for Offshore Wind Technology (NOWITECH) and material developed by the expert authors over the last 20 years. This comprehensive text covers critical topics such as wind energy conversion systems technology, control systems, grid connection and system integration, and novel structures including bottom-fixed and floating. The text also reviews the most current operation and maintenance strategies as well as technologies and design tools for novel offshore wind energy concepts. The text contains a wealth of mathematical derivations, tables, graphs, worked examples, and illustrative case studies. Authoritative and accessible, Offshore Wind Energy Technology: Contains coverage of electricity markets for offshore wind energy and then discusses the challenges posed by the cost and limited opportunities Discusses novel offshore wind turbine structures and floaters Features an analysis of the stochastic dynamics of offshore/marine structures Describes the logistics of planning, designing, building, and connecting an offshore wind farm Written for students and professionals in the field, Offshore Wind Energy Technology is a definitive resource that reviews all facets of offshore wind energy technology and grid connection.
Author: Rupp Carriveau Publisher: BoD – Books on Demand ISBN: 9533075082 Category : Technology & Engineering Languages : en Pages : 438
Book Description
As the fastest growing source of energy in the world, wind has a very important role to play in the global energy mix. This text covers a spectrum of leading edge topics critical to the rapidly evolving wind power industry. The reader is introduced to the fundamentals of wind energy aerodynamics; then essential structural, mechanical, and electrical subjects are discussed. The book is composed of three sections that include the Aerodynamics and Environmental Loading of Wind Turbines, Structural and Electromechanical Elements of Wind Power Conversion, and Wind Turbine Control and System Integration. In addition to the fundamental rudiments illustrated, the reader will be exposed to specialized applied and advanced topics including magnetic suspension bearing systems, structural health monitoring, and the optimized integration of wind power into micro and smart grids.
Author: James F. Manwell Publisher: John Wiley & Sons ISBN: 9780470686287 Category : Technology & Engineering Languages : en Pages : 704
Book Description
Wind energy’s bestselling textbook- fully revised. This must-have second edition includes up-to-date data, diagrams, illustrations and thorough new material on: the fundamentals of wind turbine aerodynamics; wind turbine testing and modelling; wind turbine design standards; offshore wind energy; special purpose applications, such as energy storage and fuel production. Fifty additional homework problems and a new appendix on data processing make this comprehensive edition perfect for engineering students. This book offers a complete examination of one of the most promising sources of renewable energy and is a great introduction to this cross-disciplinary field for practising engineers. “provides a wealth of information and is an excellent reference book for people interested in the subject of wind energy.” (IEEE Power & Energy Magazine, November/December 2003) “deserves a place in the library of every university and college where renewable energy is taught.” (The International Journal of Electrical Engineering Education, Vol.41, No.2 April 2004) “a very comprehensive and well-organized treatment of the current status of wind power.” (Choice, Vol. 40, No. 4, December 2002)
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Author: Thomas Bruce
Author: Peter J. Blau
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Author: C. Guedes Soares
Author: Abdel Salam Hamdy Makhlouf
Author: Aaron Paul Thaler
Author: Olimpo Anaya-Lara
Author: Rupp Carriveau
Author: James F. Manwell