Generalized modes in time-domain seakeeping calculations

The concept of "generalized modes" is to describe all degrees of freedom by mode shapes and not using any predefined shape, like rigid body modes. Generalized modes in seakeeping computations allow one to calculate the response of a single ship, springing, whipping, multibody interaction, etc., using a uniform approach. The generalized modes...

Global hydroelastic ship response comparison of numerical model and WILS model tests

It is nowadays well recognized that the hydroelastic ship response might be an important part of the overall ship structural response. We usually talk about two phenomena: namely springing and whipping, even if sometimes it is not trivial to distinguish between the two of them. Usually, springing is defined as a continuous resonant wave-induced...

Validation of the global hydroelastic model for springing & whipping of ships

Hydroelastic response of the ship can represent an important part of the overall structural response. This is true both for the extreme ship structural response as well as for the fatigue loads of some structural details. Several full scale monitoring campaigns on the container ships clearly show an important high frequency contribution coming...

Hydro-elastic response of ship structures to slamming induced whipping

Spreading of oil from protein stabilised emulsions at air/water interfaces

Spreading of a drop of an emulsion made with milk proteins on air/water interfaces was studied. From an unheated emulsion, all oil molecules could spread onto the air/water interface, indicating that the protein layers around the oil globules in the emulsion droplet were not coherent enough to withstand the forces involved in spreading. Heat...