Vestas

About: Vestas is a company organization based out in Aarhus, Denmark. It is known for research contribution in the topics: Turbine & Wind power. The organization has 1075 authors who have published 1519 publications receiving 23285 citations. The organization is also known as: Vestas Wind Systems & Vestas Wind Systems A/S.

Method of manufacturing a wind turbine blade shell member with a fastening member and a wind turbine blade with a fastening member

Abstract: A method of manufacturing a wind turbine blade shell member (2) having an incorporated fastening member (4) near the root is provided. According to the method, a fastening member 4 is positioned in a mould (14) with pre-fabricated sticks (8, 10) surrounding a substantial longitudinal part of the fastening member (4) prior to resin infusion. Furthermore, a wind turbine blade comprising a wind turbine blade shell member (2) with a fastening member (4) is provided. Finally, a guiding means for aligning a fastening member (4) relative to a further fastening member and/or relative to the mould during moulding and a subassembly comprising a guiding means is provided.

Wind Turbine Blade

Abstract: A sectional blade for a wind turbine comprising a first and a second blade section extending in opposite directions from a blade joint, and each blade section comprising a spar section forming a structural member of the blade. The blade sections are structurally connected by a spar bridge extending into the first and second blade sections to facilitate joining of the blade sections. The spar bridge comprises a stiffening member protruding from the spar bridge in a chord wise direction of the blade for increasing the edgewise stiffness of the blade, and wherein a part of the surface of the stiffening member is shaped to follow an inner surface contour of the blade. A method of manufacturing such a sectional blade is also disclosed.

Light Rotor: The 10-MW reference wind turbine

Abstract: This paper describes the design of a rotor and a wind turbine for an artificial 10-MW wind turbine carried out in the Light Rotor project. The turbine called the Light Rotor 10-MW Reference Wind Turbine (LR10MW RWT), is designed with existing methods and techniques and serves as a reference to future advanced rotor designs in the project. The results shown in this paper are not for the final design, but for Iteration #2 in the design process. Several issues in the design process were highlighted. Before carrying out the design many decisions have to be made and this paper elaborate on issues like the determination of the specific power and upscaling of the turbine. The design of Iteration #2 of the LR10-MW RWT is carried out in a sequence between aerodynamic rotor design, structural design and aero-servo-elastic design. Each of these topics is described. The results from the Iteration #2 design show a rather well performing wind turbine both in terms of power and loads, but in the further work towards the final design the challenges in the control needs to be solved and the balance between power performance and loads and between structural performance and mass will be investigated further resulting in changes in the present design.

Improved design of large wind turbine blade of fibre composites based on studies of scale effects (Phase 1) - Summary Report

Abstract: The main aim of the present study was to enhance the understanding of damage evolution in wind turbine blades by a combination of structural- and material modelling. Basic damage modes were identified in wind turbines tested to failure under static and cyclic loadings. Two of the observed damage types, compression failure and crack growth along adhesive joints, were studied in details. Modelling of a load carrying composite spars as well as composite columns were performed for assessing the compressive strength. A fracture mechanics approach was developed for prediction the strength of adhesive joints. The effect of porosity on the strength of adhesive joints was also investigated. (au)