News and Projects
Metocean Data Analysis & FOWT Load Case Generation
Building on the UN’s Sustainable Development Goals, energy extraction using floating offshore wind turbines (FOWTs) can become an important part of
the transition to sustainable and renewable energy sources.
A software application is developed to be able to automate a method for determining the meteorological and oceanographic conditions used as a design
basis for establishing characteristic load effects and capacity checks during FOWT design.
Kinematics and kinetics are fundamental in fluid-structure interaction and design for optimizing FOWT performance, as well as loadings for mooring,
or station keeping, and structural analysis, where both load response and structural integrity need to be evaluated.
As the generic offshore conditions are limited to turbulence and extremes, they cannot replace the site-specific calculations for the final design.
The determination of site-specific design conditions relies on a combination of different methods.
Characteristic Load Effect and Capacity Check During Installation Design
In order to establish operational parameters and limit weather criteria, a software application is developed to be able to automate a methodology for
establishing characteristic load effect and capacity check while performing installation design as part of the modelling and analysis scope of marine
operation. The application can be used as a post-processing tool along with a non-linear time domain analysis solver.
The meteorological and oceanographic data analysis involves manipulating, transforming, and visualizing data based on data analysis results using
descriptive and inferential statistics.
Pre- & Post-processor - Hydrodynamic Analysis Solver
The pre- and post-processor uses an application programming interface (API) already prepared for a hydrodynamic analysis solver. The pre-processor is used to create and prepare input to the hydrodynamic solver, such as model geometry, loads, and analysis parameters. The post-processor is used to retrieve results from the hydrodynamic solver, such as display and review the results.
The pre-processor serves a model from project source data, such that a data interface is realized between the analysis solver software and model source data. The pre-processor provides the ability to control creation of the input model which also demand the ability to modify the model to ensure that the final model will produce the results as intended. In setting up a model for analysis, automation or knowledge capture is used for repetitive sets of work that would be laborious to complete.
Important for a fast analysis turnaround is the ability of the postprocessor to process the data and support the user in getting the necessary information to understand the model’s hydrodynamic behaviour. The post-processor allows full control of results selection and a set of tools to manage and display results. This also includes easy comprehension of data supported by tools that provides the ability to easily view appropriate results quantities on all model objects. The usability of the interface is supported by commonly used interface types that are well integrated in the windows environment where one important feature is the interaction and data transfer with third party software products such as Word and Excel. Customization is supported by the ability to tailor the user interface to user needs and allow commonly used tools and functions to be reached easily while de-emphasizing seldom used features. These challenges are managed by built-in toolkits and customization capabilities of the programming interface (API) and macro programming capabilities.
The pre- and postprocessor is an important contribution on technically challenging projects. It supports the export of the analysis solver input files and the import of solver results files and is able to automate time-consuming tasks.
Floatability / Risk Assessment According to IMO Circular MSC.1/Circ.1380
This project is considering the impact of open watertight doors on the vessel operation and survivability when determining
whether a watertight door may remain open during navigation under SOLAS regulation II-1/22 (paragraph 4)
(previous SOLAS regulation II-1/15, paragraph 9.3).
The floatability assessment is for the purpose of determining the impact of open watertight doors on ship survivability under SOLAS
regulation II-1/22.4 (previous SOLAS regulation II-1/15.9.3). The project scope is to cover relevant requirements in the
IMO Circular MSC.1/Circ.1380 “Guidance for watertight doors on passenger ships which may be opened during navigation”.
The project also cover intact and damage stability information booklets and updates to damage control and watertight integrity
plans.
Calculations are carried out using the software program “AutoHydro-Pro” version 6.5.0.
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Wave Energy Converter and Energy Capture Performance
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