Mean Stress Effects in Temporal and Spectral Fatigue Analysis: Loading & Response and Resistance Contributions

Fatigue lifetime has proven to be a leading design parameter for naval vessels. In the field of fatigue analysis and design of welded joints, two overall methods are distinguished: the temporal and spectral approach. Using empirical models, the spectral approach is typically preferred due to its efficiency, even though damage estimates are...

Moving load on guide works during a brush collision with a vessel

In the vicinity of locks and bridge piers, guide works are placed in order to steer inland navigation vessels through a narrowed passage. The design of these structures is generally done in a static way, thus without consideration of time-dependent phenomena. By treating the contact force during a brush collision as a static force, several...

Single lift blade alignment for large offshore wind turbines: A critical assessment of the alignment process of next generation wind turbine blades

In 2022 the first 12 MW offshore wind turbines are expected to be installed. Due to the continuous upscaling of wind turbine generators new problems are expected to arise during the installation of the turbines. Especially the workability of the installation of larger wind turbine blades, which are already causing problems during the...

Time domain force identification: for noise and vibration prediction in vehicles

In many engineering fields it is beneficial to obtain information about the force acting on a dynamical system. As measurement of this force is often difficult or impossible a technique that identifies this force in an alternative manner is desired. A wide variety of methods is available in literature. Obtaining this force in the frequency...

Time-domain computations for floating bodies

The large-time asymptotic expansion of the impulse response function for a floating body