文档介绍：Modelling Extreme Wave Sequences for the Hydrodynamic Analysis
of Ships and Offshore Structures
G¨unther F. Clauss, Janou Hennig, Christian E. Schmittner
Technische Universit¨atBerlin
Berlin, Germany
Abstract chain. The problem plex when the structure
which has to be analyzed is moving at constant or
For the analysis of non-linear processes such as large non-constant speed since measurements in a model
rolling and capsizing of ships as well for the evaluation tank cannot provide the wave train at the position
of forces and motion behavior of offshore structures of the investigated model or in the moving reference
in extreme sea states, experimental investigations are frame of a cruising ship.
still indispensable, both for the validation of numer- This paper mends the use of an approach tak-
ical simulation tools and for basic insights into the ing into account both analytical models and empiri-
underlying mechanism. Especially in ship design nu- cal terms for modelling non-linear wave propagation.
merical simulation tools have improved significantly This modified non-linear method uses linear wave the-
and are already considered routinely within the de- ory as a backbone for non-linear wave description and
sign process but are still under development and re- is developed at each time step. The main advantage
quire further experimental confirmation. of the propo