WaveLand

WaveLand Basic Concepts

WAVELAND is a specialised computer tool for assessment of wave impact on bow and deck structures of ships and FPSOs.  The system simulates bow slam and green sea effects on ships and FPSO; later extensions will include loads from waves and run-up around columns of floating offshore platforms.

The formulation combines state-of-the-art description of random, steep non-linear wave events in a stochastic sea description with slamming force models and structural response analysis.  A semi-empirical approach is taken, in which analytical formulations are calibrated against measured data.

Main results from the program are

• probability of bow slamming or water on deck for FPSOs
• design loads for bow slam, water impact and green sea loading on deck-mounted equipment
• assessment of structural integrity

Target applications for WAVELAND are illustrated in Figure 1-1.

Figure 1-1. Target applications.
 

System Overview

WAVELAND comprises several modules that handle separate parts of the problem.  Figure 1-2 illustrates the different analyses involved, and the interface between the different parts of the analyses.  All modules are integrated within a common hydrodynamic analysis workbench, called ShipX.

Figure 1-2. Calculation procedure for water on deck / green sea loading.

Read more about the WaveLand project in this linked presentation  and overhead-presentation(PDF-files).

The project has also been presented in our publication MARINTEK Review (the article is linked here).

Contact person at MARINTEK: Øyvind Hellan