Hybrid Anisotropic Materials For Wind Power Turbine Blades
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Hybrid Anisotropic Materials For Wind Power Turbine Blades
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Author : Yosif Golfman
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Hybrid Anisotropic Materials For Wind Power Turbine Blades written by Yosif Golfman and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Science categories.
Based on rapid technological developments in wind power, governments and energy corporations are aggressively investing in this natural resource. Illustrating some of the crucial new breakthroughs in structural design and application of wind energy generation machinery, Hybrid Anisotropic Materials for Wind Power Turbine Blades explores new automat
Hybrid Anisotropic Materials For Structural Aviation Parts
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Author : Yosif Golfman
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Hybrid Anisotropic Materials For Structural Aviation Parts written by Yosif Golfman and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Technology & Engineering categories.
Optimization of aviation and space vehicle design requires accurate assessment of the dynamic stability and general properties of hybrid materials used in aviation parts. Written by a professional with 40 years of experience in the field of composite research, Hybrid Anisotropic Materials for Structural Aviation Parts provides key analysis and application examples to help the reader establish a solid understanding of anisotropic properties, theory of laminates, and basic fabrication technologies. Tools to ensure cost-effective, optimized fabrication of aircraft, satellites, space vehicles, and more... With a focus on analytic modeling and dynamic analysis of anisotropic hybrid materials used in structural parts, this book assesses how and why design mechanisms either work or fail. It describes how current manufacturing techniques can apply alternative electronic and ultrasonic systems to improve the strength of an aircraft’s parts, reduce vibrations, and counteract deicing effects, among other vital requirements. Presenting valuable case studies involving manufacturers such as Boeing and DuPont, this book covers topics including: Nano composites, impregnation processes, and stress/strain analysis New techniques for analyzing interlaminar shear distribution sandwich/carbon/fiber/epoxy technologies Non-destructive methods, control technological parameters, and the influence of technological defects Use of carbon–silicon nanotubes and ceramic technology Strength criteria and analysis, and composite life prediction methodologies Dynamic aspects and stability of jetliners and lattice aviation structures Interlaminar shear stress analysis and possible failure Fatigue strength and vibration analysis This volume offers a useful, informative summary of the cutting-edge work being done in the field of high-performance composite materials, including fiberglass and carbon. With coverage of topics ranging from stress analysis and failure prediction to manufacturing methods and nondestructive inspection technology, it provides unique information to benefit a new generation of composite designers, graduate students, and industry professionals working with high-performance structures.
Passive Control Of A Wind Turbine Blade Using Composite Materials
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Author : Saad Bin Aziz
language : en
Publisher:
Release Date : 2011
Passive Control Of A Wind Turbine Blade Using Composite Materials written by Saad Bin Aziz 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.
The weight and the cost of the wind turbine are the two important considerations that make wind energy competitive with other energy source. The weight of the rotor is typically 40-80% of the total weight of the system. Thus, reducing cost by reducing the weight of the blade is an important consideration. Another important factor is the operational life of the machine, which is roughly 20 years of continuous service. Innovative design solutions are needed in order to meet the criteria of improved stiffness, fatigue life, reliability and efficiency. The directional property of anisotropic composite material can be used to passively control wind turbine blade structure. In the current research, a baseline wind turbine blade model of glass fiber and a carbon-hybrid model has been developed by replacing glass fiber in the spar cap region. In addition, the feasibility of using carbon fiber has been analyzed by comparing stress, strain and failure criteria analysis under different operating conditions.
Nanotechnology For Energy Sustainability
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Author : Baldev Raj
language : en
Publisher: John Wiley & Sons
Release Date : 2017-01-30
Nanotechnology For Energy Sustainability written by Baldev Raj and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-30 with Technology & Engineering categories.
In three handy volumes, this ready reference provides a detailed overview of nanotechnology as it is applied to energy sustainability. Clearly structured, following an introduction, the first part of the book is dedicated to energy production, renewable energy, energy storage, energy distribution, and energy conversion and harvesting. The second part then goes on to discuss nano-enabled materials, energy conservation and management, technological and intellectual property-related issues and markets and environmental remediation. The text concludes with a look at and recommendations for future technology advances. An essential handbook for all experts in the field - from academic researchers and engineers to developers in industry.
Nanotechnology Applications In Energy Drug And Food
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Author : Shafiquzzaman Siddiquee
language : en
Publisher: Springer
Release Date : 2019-01-16
Nanotechnology Applications In Energy Drug And Food written by Shafiquzzaman Siddiquee and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-16 with Technology & Engineering categories.
Applications of nanotechnology are the remarkable sizes dependent on physiochemical properties of nanomaterials that have led to the developed protocols for synthesizing nanomaterials over a range of size, shapes and chemical compositions. Nanomaterials are normally powders composed of nanoparticles which exhibit properties that are different from powders. Nanotechnology is the engineering of functional systems at the molecular scale with their wide applications in energy sector, including -but not limited to- energy resources, energy conversion, energy storage, and energy usage; drug delivery systems including- safety concerns, perspective, challenges, target therapeutics for cancer, neurodegenerative diseases and other human diseases, nanomaterials based tissue engineering; and food sectors including to- food safety and quality, opportunities, challenges, nanomaterials based enhancing food packing, and determination of foodborne pathogens, agro and marine food, analysis of market, regulations and future prospects. The utilization of nanotechnology in the energy field will be emphasized and highlighted, in accordance to their prominent and high impact in this particular field. Recent trends and significant benefits of nanotechnology in the energy field will be revealed to the readers, and their promising advanced applications will be discussed. The current drug discovery paradigm constantly needs to improve, enhance efficiency and reduce time to the market on the basis of designing new drug discovery, drug delivery and pharmaceutical manufacturing. In this book will be highlighted nanotechnology based drug delivery is an important aspect of medicine, as more potent and specific drugs that are particularly discussed the understanding of disease pathways. Several biomaterials can be applied to small-molecule drugs as controlled release reservoirs for drug delivery and provide new insights into disease processes, thus understanding the mechanisms of action of drugs. Applications of food nanotechnology are an area of emerging interest for the food industry, for the reason, in this book will be given more priority to discuss the uses of nanomaterials for food packing, food safety and quality, and to remove the contaminated or spoiled by foodborne pathogens. And also nanotechnology based food products will be discussed how making them tastier, healthier, and more nutritious such as vitamins, to reduce fat content, and to ensure they do not degrade during a product’s shelf life. Nanotechnology is basically the uses of nanomaterials, devices and systems through the control of matter on the nanometer scale. Multidisciplinary studies are required the technology for discovery and moving so fast from concept to the reality. Nanotechnology always not only provided more benefits in energy, drugs and food products but also provided significantly benefits around multidisciplinary field applications.
Advances In Wind Turbine Blade Design And Materials
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Author : Povl Brondsted
language : en
Publisher: Elsevier
Release Date : 2013-10-31
Advances In Wind Turbine Blade Design And Materials written by Povl Brondsted and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-31 with Technology & Engineering categories.
Wind energy is gaining critical ground in the area of renewable energy, with wind energy being predicted to provide up to 8% of the world’s consumption of electricity by 2021. Advances in wind turbine blade design and materials reviews the design and functionality of wind turbine rotor blades as well as the requirements and challenges for composite materials used in both current and future designs of wind turbine blades. Part one outlines the challenges and developments in wind turbine blade design, including aerodynamic and aeroelastic design features, fatigue loads on wind turbine blades, and characteristics of wind turbine blade airfoils. Part two discusses the fatigue behavior of composite wind turbine blades, including the micromechanical modelling and fatigue life prediction of wind turbine blade composite materials, and the effects of resin and reinforcement variations on the fatigue resistance of wind turbine blades. The final part of the book describes advances in wind turbine blade materials, development and testing, including biobased composites, surface protection and coatings, structural performance testing and the design, manufacture and testing of small wind turbine blades. Advances in wind turbine blade design and materials offers a comprehensive review of the recent advances and challenges encountered in wind turbine blade materials and design, and will provide an invaluable reference for researchers and innovators in the field of wind energy production, including materials scientists and engineers, wind turbine blade manufacturers and maintenance technicians, scientists, researchers and academics. Reviews the design and functionality of wind turbine rotor blades Examines the requirements and challenges for composite materials used in both current and future designs of wind turbine blades Provides an invaluable reference for researchers and innovators in the field of wind energy production
Advances In Wind Turbine Blade Design And Materials
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Author : B. Madsen
language : en
Publisher: Elsevier Inc. Chapters
Release Date : 2013-10-31
Advances In Wind Turbine Blade Design And Materials written by B. Madsen and has been published by Elsevier Inc. Chapters this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-31 with Technology & Engineering categories.
This chapter about biobased composites starts by presenting the most promising types of cellulose fibres; their properties, processing and preforms for composites, together with an introduction to biobased matrix materials. The chapter then presents the typical mechanical properties of biobased composites, based on examples of composites with different fibre/matrix combinations, followed by a case study of the stiffness and specific stiffness of cellulose fibre composites vs glass fibre composites using micromechanical model calculations. Finally, the chapter presents some of the special considerations to be addressed in the development and application of biobased composites.
Vibration And Structural Response Of Hybrid Wind Turbine Blades
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Author : Norimichi Nanami
language : en
Publisher:
Release Date : 2011
Vibration And Structural Response Of Hybrid Wind Turbine Blades written by Norimichi Nanami 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.
Renewable energy is a serious alternative to deliver the energy needs of an increasing world population and improve economic activity. Wind energy provides better environmental and economic benefits in comparison with the other renewable energy sources. Wind energy is capable of providing 72 TW (TW = 1012 W) of electric power, which is approximately four and half times the world energy consumption of 15.8 TW as reported in 2006. Since power output extracted from wind turbines is proportional to the square of the blade length and the cube of the wind speed, wind turbine size has grown rapidly in the last two decades to match the increase in power output. As the blade length increases, so does its weight opening up design possibilities to introduce hybrid glass and carbon fiber composite materials as lightweight structural load bearing alternatives. Herein, we investigate the feasibility of introducing modular composite tubulars as well as hybrid sandwich composite skins in the next generation blades. After selecting a target energy output, 8 MW with 80 m blade, airfoil geometry and the layup for the skin as well as internal reinforcements are proposed. They are incorporated into the computational blade via linear shell elements for the skin, and linear beam elements for the composite tubulars to assess the relationship between weight reduction and structural performance. Computational simulations are undertaken to understand the static and dynamic regimes; specifically, displacements, stresses, and vibration modes. The results showed that the composite layers did not exhibit any damage. However, in the balsa core of the sandwich skin, the von Mises stress exceeded its allowable at wind speeds ranging from 11.0 m/sec to 12.6 m/sec. In the blades with composite tubular reinforcement, two different types of damage are observed: a. Stress concentrations at the tubular-skin attachments, and b. Highest von Mises stress caused by the flapping bending moment. The vibration studies revealed a strong coupling mode, bending and twist, at the higher natural frequencies of the blade with tubular truss configuration. The weight saving measures in developing lighter blades in this study did not detract from the blades structural response for the selected load cases.
Advances In Wind Turbine Blade Design And Materials
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Author : P.D. Clausen
language : en
Publisher: Elsevier Inc. Chapters
Release Date : 2013-10-31
Advances In Wind Turbine Blade Design And Materials written by P.D. Clausen and has been published by Elsevier Inc. Chapters this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-31 with Technology & Engineering categories.
Small wind turbine blades share a number of features with large blades, but have some important differences. The two main differences are their much higher rotational speed, which causes more fatigue cycles and higher yaw moments, and their operation at low Reynolds number, which means that thick aerofoil sections cannot be used near the root. This chapter discusses the design challenges arising from these differences, the materials commonly used for blade manufacture, and the fatigue testing of small blades. The use of timber is highlighted for very small blades, and fibre-reinforced composite manufacture of larger ones is discussed in terms of sustainability, conformity of manufactured shape, and fatigue behaviour.
Advances In Wind Turbine Blade Design And Materials
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Author : J. G.Holierhoek
language : en
Publisher: Elsevier Inc. Chapters
Release Date : 2013-10-31
Advances In Wind Turbine Blade Design And Materials written by J. G.Holierhoek and has been published by Elsevier Inc. Chapters this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-31 with Technology & Engineering categories.
Aeroelasticity concerns the interaction between aerodynamics, dynamics and elasticity. This interaction can result in negatively or badly damped wind turbine blade modes, which can have a significant effect on the turbine lifetime. The first aeroelastic problem that occurred on commercial wind turbines concerned a negatively damped edgewise mode. It is important to ensure that there is some out-of-plane deformation in this mode shape to prevent the instability. For larger turbine blades with lower torsional stiffness and the possibility of higher tip speeds for the offshore designs, classical flutter could also become relevant. When designing a wind turbine blade, it is therefore crucial that there is enough damping for the different modes and that there is no coincidence of natural frequencies with excitation frequencies (resonance). An effective aeroelastic analysis is also important, and the tools used for such an analysis must include the necessary detail in the structural model.
