Advances in Wind Turbine Blade Design and Materials

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  • Author : Povl Brøndsted
  • Publisher : Elsevier
  • Pages : 464 pages
  • ISBN : 0857097288
  • Rating : /5 from reviews
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Download or Read online Advances in Wind Turbine Blade Design and Materials full in PDF, ePub and kindle. this book written by Povl Brøndsted and published by Elsevier which was released on 31 October 2013 with total page 464 pages. We cannot guarantee that Advances in Wind Turbine Blade Design and Materials book is available in the library, click Get Book button and read full online book in your kindle, tablet, IPAD, PC or mobile whenever and wherever You Like. 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

Advances in Wind Turbine Blade Design and Materials
  • Author : Povl Brøndsted,Rogier P. L. Nijssen
  • Publisher : Elsevier
  • Release : 31 October 2013
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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,

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : P.D. Clausen,F. Reynal,,D.H. Wood
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
GET THIS BOOK Advances in wind turbine blade design and materials

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

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : F. Mølholt Jensen,K. Branner
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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An overview of the current and future trends in wind turbine blade structural design process is presented. The main design principles and failure mechanisms of blades in operation are assessed and explained through an industry point of view, in a realistic manner. A number of failure modes which are not addressed sufficiently in the certificate guidelines are presented. An example on how to use the new design philosophy is presented. The manufactured prototype is a 44m long load carrying spar

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : H. Söker
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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This chapter deals with loads on wind turbine blades. It describes the load generating process, wind fields, and the concepts of stresses and strains. Aerodynamic loads, loads introduced by inertia, gravitation and gyroscopic effects, and actuation loads are discussed. The loading effects on the rotor blades and how they are interconnected with the dynamics of the turbine structure are highlighted. There is a discussion on how stochastic loads can be analysed and an outline of cycle counting methodology. The method

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : R.P.L. Nijssen,P. Brøndsted
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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Composites have been the material of choice for wind turbine blade construction for several decades. This chapter explains why. It also shows how wind turbine blade materials and our understanding of their fatigue behaviour have developed recently, and the gaps that still exist in the knowledge. The chapter discusses why fatigue is a predominant design driver for wind turbine blades. The main structural elements of the blade (load bearing components and aerodynamic shell) are considered in terms of material and

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : D.J. Lekou
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
GET THIS BOOK Advances in wind turbine blade design and materials

The chapter discusses the topic of probabilistic analysis of wind turbine blades. First, structural analysis models, the definition of ‘failure’ and the treatment of random variables will be explored, focusing on the challenges involved in a probabilistic design depending on the choices made during each step. Next, the various probabilistic methods (Monte Carlo method, first-order reliability method, Edgeworth expansion method, response surface method) will be described. Issues arising out of the use of composite material structures, in applications such as

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : C. Bak
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
GET THIS BOOK Advances in wind turbine blade design and materials

This chapter describes the process of aerodynamic rotor design for horizontal axis wind turbines. Apart from describing the state-of-the-art, it presents the mathematical models used, explains how airfoil and rotor control choice are decided and lists common design constraints. An example is used to illustrate the rotor design process, covering all the main aspects from choice of rotor size, airfoil types and number of blades to the exact aerodynamic shape of the blades. At the end of the chapter there

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : J. G.Holierhoek
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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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

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : W.A. Timmer,C. Bak
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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This chapter focuses on airfoils for wind turbine blades and their characteristics. The use of panel codes such as XFOIL and RFOIL and CFD codes for the prediction of airfoil characteristics is briefly described. The chapter then discusses the requirements for wind turbine blade airfoils and the effect of leading edge roughness and Reynolds number. After a description of how airfoils can be tested the chapter discusses methods to represent airfoil characteristics at high angles of attack. A number of

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : J.F. Mandell,D.D. Samborsky,D.A. Miller
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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This chapter explores the influence of resin and reinforcing fabric variations on the fatigue sensitivity for a wide range of typical blade laminates reported recently in the SNL/MSU/DOE database. Test results are presented for static and fatigue property variations with resin type, reinforcing fabric construction and weight, fiber content and laminate construction. Critical resin/fabric interactions and damage mechanisms are identified. The effects of resin and fiber type are also explored for material transitions at ply drops, where

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : B. Kjærside Storm
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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This chapter discusses surface layer protection for wind turbine rotor blades. The surface protection and coating can be a gelcoat or a paint and can be made of unsaturated polyester, epoxy, polyurethane or acrylic. As wind turbines are often erected in harsh climates, the blade surface will be exposed to conditions that cause erosion and wear. There are tests to measure resistance against these attacks, and the surface is designed to minimize damage to the blade caused by the environment.

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : A.P. Vassilopoulos
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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Fatigue life prediction of wind turbine rotor blades is a very challenging task, as blade failure is led by different failure types that act synergistically. Inherent defects like wrinkles, fiber misalignments and voids, that can be introduced during fabrication, can constitute potential damage initiation points and rapidly develop to failure mechanisms like matrix cracking, transverse-ply cracking, interface cracking, debonding, fiber breakage, etc. Different methods have been established to address this problem, some based on phenomenological and others on actual damage

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : L. MISHNAEVSKY
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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An overview of the micromechanics of materials methods and approaches that can be used for the modelling of wind turbine blade composites is given in this chapter. Using the various modelling methods reviewed here, the strength, stiffness and lifetime of composite materials can be predicted and the suitability of different groups of materials for applications in wind turbine blades can be analysed. The effects of interface and matrix properties, fibre clustering and nanoreinforcement on the strength and lifetime of composites

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : B. Madsen,P. Brøndsted,T. Løgstrup Andersen
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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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

Advances in wind turbine blade design and materials

Advances in wind turbine blade design and materials
  • Author : J.J. Heijdra,M.S. Borst,D.R.V. Van Delft
  • Publisher : Elsevier Inc. Chapters
  • Release : 31 October 2013
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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