Analysis Of A Rotatable Wind Turbine Tower By Means Of Aero Servo Elastic Load Simulations
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Analysis of a Rotatable Wind Turbine Tower by means of Aero-Servo-Elastic Load Simulations
Author: Struve, Achim
language: en
Publisher: KIT Scientific Publishing
Release Date: 2021-04-12
This work highlights how the costs and CO2-emissions of land-based wind turbines can be reduced by means of an innovative and material efficient support structure concept. Thereby the yaw system is placed at the tower base, allowing the whole wind turbine tower to be rotated. The potential of a rotatable inclined lattice tower concept was analysed by means of aero-servo-elastic load simulations in the FAST environment. A balance between different cost aspects revealed significant savings.
Design of Cast Steel Components under Cyclic Loading
Author: Nagel, Sven
language: en
Publisher: KIT Scientific Publishing
Release Date: 2022-05-27
This work presents a design approach that links fatigue resistance of cast steel component to permissible defect sizes. It is based on fractures mechanics, is in line with experiences of the last 60 years and validated by extensive experimental as well as numerical investigations on different scales and under consideration of real casting defects. By following established assessment methods, the design concept is adapted to practical building applications.
Finite Element Simulation of Residual Stresses from Welding and High Frequency Hammer Peening
Author: Gkatzogiannis, Stefanos
language: en
Publisher: KIT Scientific Publishing
Release Date: 2022-06-30
Research goal of the present monograph is the establishment of an efficient engineering approach, which will include straightforward but accurate simulation models, in order to estimate the residual stress fields of welded joints introduced during welding and their post-weld treatment with High Frequency Hammer Peening. The present subject lies on the intersection of structural engineering, material science and computational mechanics.