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RISA Comparison of Wind Turbine Design Loads in Different Environments Using Inverse Reliability Techniques
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The influence of turbulence conditions on the design loads for wind turbines is investigated by using inverse reliability techniques. Alternative modeling assumptions for randomness in the gross ...
Statistical Extrapolation Methods for Estimating Wind Turbine Extreme Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: With the introduction of the third edition of the International Electrotechnical Commission (IEC) Standard 61400-1, designers of wind turbines are now explicitly required, in one of the prescribed ...
Design Loads for Wind Turbines Using the Environmental Contour Method
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: When interest is in establishing ultimate design loads for wind turbines such that a service life of, say, 20 years is assured, alternative procedures are available. One class of methods works ...
Symmetry Considerations When Using Proper Orthogonal Decomposition for Predicting Wind Turbine Yaw Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In an earlier study, the authors discussed the efficiency of low-dimensional representations of inflow turbulence random fields in predicting statistics of wind turbine loads that included blade ...
The Influence of the Joint Wind-Wave Environment on Offshore Wind Turbine Support Structure Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Our objective here is to establish long-term loads for offshore wind turbines using a probabilistic approach. This can enable one to estimate design loads for a prescribed level of return ...
Low-Dimensional Representations of Inflow Turbulence and Wind Turbine Response Using Proper Orthogonal Decomposition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A demonstration of the use of Proper Orthogonal Decomposition (POD) is presented for the identification of energetic modes that characterize the spatial random field describing the inflow turbulence ...
Empirical Wind Turbine Load Distributions Using Field Data
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the design of land-based or offshore wind turbines for ultimate limit states, long-term loads associated with return periods on the order of the service life (20years, usually) must be ...
A Comparison of Standard Coherence Models for Inflow Turbulence With Estimates from Field Measurements
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Long-term Inflow and Structural Test (LIST) program, managed by Sandia National Laboratories, Albuquerque, NM, is gathering inflow and structural response data on a modified version of the ...
Analytical Predictions of the Air Gap Response of Floating Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Two separate studies are presented here that deal with analytical predictions of the air gap for floating structures. 1) To obtain an understanding of the importance of first and second-order ...
Parametric Models for Estimating Wind Turbine Fatigue Loads for Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: International standards for wind turbine certification depend on finding long-term fatigue load distributions that are conservative with respect to the state of knowledge for a given system. ...