- Wave and Wind Energy Systems
- Fluid Dynamics and Vibration Analysis
- Wind Energy Research and Development
- Ship Hydrodynamics and Maneuverability
- Vibration and Dynamic Analysis
- Structural Integrity and Reliability Analysis
- Fluid Dynamics Simulations and Interactions
- Offshore Engineering and Technologies
- Marine and Offshore Engineering Studies
- Structural Health Monitoring Techniques
- Mechanical stress and fatigue analysis
- Magnetic Bearings and Levitation Dynamics
- Vehicle Noise and Vibration Control
- Maritime Transport Emissions and Efficiency
- Engineering Diagnostics and Reliability
- Ocean Waves and Remote Sensing
- Engineering Applied Research
- Modeling and Simulation Systems
- Nuclear and radioactivity studies
- Real-time simulation and control systems
University of Lisbon
2014-2024
Centimfe
2017
Lusíada University of Lisbon
2014
This paper summarizes the findings from Phase II of Offshore Code Comparison, Collaboration, Continued, with Correlation project. The project is run under International Energy Agency Wind Research Task 30, and focused on validating tools used for modeling offshore wind systems through comparison simulated responses select system designs to physical test data. Validation activities such as these lead improvement tools, which will enable development more innovative cost-effective designs. For...
Offshore wind turbines are designed and analyzed using comprehensive simulation tools (or codes) that account for the coupled dynamics of inflow, aerodynamics, elasticity, controls turbine, along with incident waves, sea current, hydrodynamics, mooring dynamics, foundation support structure. This paper describes latest findings code-to-code verification activities Code Comparison Collaboration Continuation project, which operates under International Energy Agency Wind Task 30. In phase...
An assessment is made of the stress distribution and hydrodynamic response preliminary structural design tension leg platform a 10 MW wind turbine. The supporting turbine modelled analysed by finite element method. determined in still water with at above-rated conditions, estimated time domain. results domain analysis show reasonable agreement between present available data. To check stiffener dimensions, span, spacing against distribution, classification societies’ recommendations are used....
This study investigates the impact of frequency-domain hydrodynamic outputs from several panel method codes on estimating time domain responses floating wind turbines. The tools under examination are WAMIT and three open-source (HAMS, NEMOH, BEMUse). deliver coefficients exciting forces in frequency domain. results serve as inputs to time-domain simulations, which coupled calculated. Hence, differences reflected time-domain. Two platforms employed: OC3-Hywind spar OC4-DeepCWind...
This paper defines a methodology for the economic feasibility analysis of floating offshore wind farm composed tensioned leg platforms, which are part EU ARCWIND research project. In this context, phases and subphases its life-cycle process considered to deal with aspects such as bathymetry, characteristics distance from shore, port speed. All costs other external parameters capital cost, electric tariff, interest rate, percentage financing corporate tax have been analysed calculate internal...
This work evaluates the experimental test results regarding operational performance of a free-float capable tension leg platform with 10 MW wind turbine. It covers dynamics in selected installation area: Ribadeo, Spain. The model and facility are initially presented, along setup load cases. testing campaign includes software-in-the-loop method to emulate rotor thrust aerodynamic gyroscopic moments pitch yaw. result sets structured start from basic information system identification cases...
This paper reviews experimental methods for testing floating wind turbines. The techniques covered include early-stage and up-to-date approaches such as a porous disc method hybrid model testing. First, the challenges induced by Froude Reynolds similitudes importance of various aerodynamic phenomena are discussed. evaluated based on their cost, versatility, requirements, limitations. work primarily focuses representing loads via physical rotor testing, preliminary classification is proposed...
As the impact of fossil fuels on planet becomes clear, world is increasingly focusing renewable energy sources [...]