Support structures for offshore wind turbines (OWTs) are designed and certified site-specific based on the calculated load effects. These load effects originate from static, cyclic, stochastic, and transient loads from the met-ocean environment and rotating components of the wind turbine. The met-ocean environment of the Baltic Sea accounts for var...
Published in Journal of Vibroengineering
Gear meshing dynamic model is the most important part in the whole wind turbine system which is used to carry out operation conditions simulation in off-line case. By simulating the normal gear meshing and the gear meshing with broken teeth in wind turbine dynamic model respectively, the difference in generator current can be observed. The method w...
This paper investigates the aerodynamic impact of Gurney flaps on a research wind turbine of the Hermann-Föttinger Institute at the Technische Universität Berlin. The rotor radius is 1.5 m, and the blade configurations consist of the clean and the tripped baseline cases, emulating the effects of forced leading-edge transition. The wind tunnel exper...
Wind turbines are large and complex machines which operate in a highly unsteady environment. Due to the spatially and temporally stochastic nature of the wind resource, a large amount of simulation data is needed when one wants to assess the lifetime of such a machine. Both extreme events, such as storms, strong gusts or significant wind direction ...
Published in Journal of Vibroengineering
The combination of feature extraction and pattern recognition can make it possible to realize wind turbine gearboxes based on vibration signals. However, these methods need to be constantly adjusted parameters and spend time training when processing different vibration signals, which is time-consuming. Aiming at reducing the number of parameters th...
The number of offshore wind farms is growing rapidly, which increases the likelihood of ship collisions with offshore wind turbines. Additionally, the cost of energy reduction for wind turbines is achieved due to radical design optimizations. Therefore, simple methods should be obtained to determine the offshore wind turbine response during ship im...
As the world is shifting away from fossil fuel-based electricity production, mainly due to concerns for man-made climate change, a sharp rise in demand for wind powered electricity production is seen. In order to meet future demand, the vast amount of off-shore wind resources can be unlocked. A key technology for this task are floating wind turbines ...
Published in Revue Française de Géotechnique
Le procédé de Compactage Horizontal Statique, mis en œuvre pour la première fois aux États-Unis dans les années 1950 par les ingénieurs d’Hayward Baker Inc. (Groupe KELLER), a été développé considérablement par la suite, de telle sorte que depuis le début des années 1990, il trouve également une diffusion croissante en Europe (Warner J. 1982. “Comp...
Present Master thesis focuses on possibility to power supply a remote inhabited object by using the energy of alternative energy sources. The main purpose is to design the most technically efficient autonomous power supply system operating in the conditions of the limited energy potential of the Tomsk region and perform economic calculations. In th...
The aim of this thesis is economic evaluation of integration result renewable energy sources in autonomous gas-oil objects. Most of such objects in Russia are not connected to the central network system and have expensive power supplied by diesel generators. These objects, as a rule, serve the transportation of oil and gas. These areas, for example...
