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RISA Comparative Study of Shutdown Procedures on the Dynamic Responses of Wind Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The shutdown of wind turbines may induce excessive loads on the structures and is an important factor to consider in their design. For pitchregulated turbines, shutdown calls for blade pitching, and oneor twoblade shutdown ...
Application of the Contour Line Method for Estimating Extreme Responses in the Mooring Lines of a Two Body Floating Wave Energy Converter
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ultimate limit state (ULS) is one of the design criteria used in the oil and gas industry in mooring system design for floating platforms. The 100 year level response in the mooring line should be applied for the ULS ...
Joint Distribution of Environmental Condition at Five European Offshore Sites for Design of Combined Wind and Wave Energy Devices
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design of wind turbines requires information about joint data for wind and wave conditions. Moreover, combining offshore wind and wave energy facilities is a potential way to reduce the cost of offshore wind farms. To ...
Response Analysis of a Nonstationary Lowering Operation for an Offshore Wind Turbine Monopile Substructure
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study addresses numerical modeling and timedomain simulations of the lowering operation for installation of an offshore wind turbine monopile (MP) with a diameter of 5.7 m and examines the nonstationary dynamic ...
Benchmarking of a Computational Fluid Dynamics-Based Numerical Wave Tank for Studying Wave Load Effects on Fixed and Floating Offshore Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A computational fluid dynamics (CFD) based numerical wave tank (NWT) is developed and verified to study wave load effects on fixed and free floating offshore structures. The model is based on solving Navier–Stokes equations ...
Methodology for Assessment of the Allowable Sea States During Installation of an Offshore Wind Turbine Transition Piece Structure Onto a Monopile Foundation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, a methodology suitable for assessing the allowable sea states for installation of a transition piece (TP) onto a monopile (MP) foundation with focus on the docking operation is proposed. The TP installation ...
Analysis of a Two Body Floating Wave Energy Converter With Particular Focus on the Effects of Power Take Off and Mooring Systems on Energy Capture
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present paper summarizes analyses of a twobody floating wave energy converter (WEC) to determine the mooring tension and the effect of the mooring system on energy capture. Also, the effect of the power takeoff (PTO) ...
Assessment of Allowable Sea States During Installation of Offshore Wind Turbine Monopiles With Shallow Penetration in the Seabed
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Installation of offshore wind turbines (OWTs) requires careful planning to reduce costs and minimize associated risks. The purpose of this paper is to present a method for assessing the allowable sea states for the initial ...
Model Test and Numerical Analysis of a Multi-Pile Offshore Wind Turbine Under Seismic, Wind, Wave, and Current Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Offshore wind turbines (OWTs) might be subjected to seismic loads with different peak accelerations during operation in the actively seismic regions. The earthquakes might be a potential risk for the OWTs due to its ...
Design of Parallel Mechanisms for Flexible Manufacturing With Reconfigurable Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reconfigurable robotic systems can enhance productivity and save costs in the ever growing flexible manufacturing regime. In this work, the idea to synthesize robotic mechanisms with dynamic properties that are reconfigurable ...