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Advances in Wind Turbine Blade Design and Materials
  • Author : Povl Brøndsted,Rogier P. L. Nijssen
  • Publisher : Elsevier
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : F. Mølholt Jensen,K. Branner
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in Wind Turbine Blade Design and Materials
  • Author : Povl Brøndsted
  • Publisher : Woodhead Pub Limited
  • Release Date : 2013

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

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Advances in wind turbine blade design and materials
  • Author : P.D. Clausen,F. Reynal,,D.H. Wood
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : D.J. Lekou
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : L. MISHNAEVSKY
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : C. Bak
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : J. G.Holierhoek
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : B. Kjærside Storm
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : R.P.L. Nijssen,P. Brøndsted
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : A.P. Vassilopoulos
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : H. Söker
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : W.A. Timmer,C. Bak
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : J.F. Mandell,D.D. Samborsky,D.A. Miller
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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Advances in wind turbine blade design and materials
  • Author : B. Madsen,P. Brøndsted,T. Løgstrup Andersen
  • Publisher : Elsevier Inc. Chapters
  • Release Date : 2013-10-31

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

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