Concrete Structures
As part of the wind energy research at the Institute for Lightweight Structures and Conceptual Design (ILEK) of Stuttgart University research and development work is conducted for the design of…
Wind Turbine Dynamics
Wind Turbine Dynamics Load Simulation WindForS members use many different software tools to simulate loads on onshore and offshore wind turbines. The spectrum goes from reduced models for longer simulated…
Foundation and Support Structures
Foundation and Support Structures Stress concentration in the shear connection in the grout connection under eccentric loading. Illustration: MPA Stuttgart The Research Centre for Steel, Timber and Masonry of the…
Foundation technologies
Foundation Technologies Wind turbines use gravity and pile foundations on- and offshore. IBF's expertise covers small-scale and large-scale testing and consulting for design, installation, and monitoring.Up to now the IBF…
Constitutive relations
Numerical models can never be better than the "constitutive laws" employed for the soil. The aim is thus to describe the mechanical interaction between stresses and strains in each individual…
Material behaviour
Material Behaviour Based on laboratory tests, the mechanical properties of the relevant soil layers must be determined in order to execute the required proofs of safety for foundation structures. Standard…
Subsoil investigations
Subsoil Investigations Sampling of soil and rock material from direct exposures (pits or boreholes) is an essential part of the subsoil investigation. The focus is not only on the composition…
Analytical wind park model
An analytical wind park model An analytical model based on a momentum balance has been developed at IMK-IFU which computes the reduction of the mean wind speed at hub height…
Improving turbulence parameterizations
Turbulence parameterization in mesoscale wind field models such as MM5 and WRF are usually based on a scheme developed by Mellor and Yamada in 1982. This system of equations is…
Environmental Data Analysis
Environmental Data Analysis The SWE has carried out many power performance measurements for research and development. These measurements are enabled by SWE's expertise in atmospheric and structural measurements, and portable…