... shows the normalized maximum (top) and the minimum (bottom) fore-aft bending moment distributions along the blade span. For the maximum fore-aft bending moment, the values for 5 ms-1 are higher up to a relative blade span of 0.6 than for 21 ms-1. In this range, the slope at a mean wind speed of 21 ms-1...

... speed wind energy variable wind speed axial force evaluation social responsibility damage probability shutdown frequency sustainable development wind turbine operation offshore wind turbine response displacement sustainability standard deviation mean wind speed vector equation random...

... fatigue life analysis wind energy fatigue analysis loading mean wind speed wave load Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International Society of Offshore and Polar Engineers (ISOPE...

... ABSTRACT A long-term database of global weather over 10 years is developed using the nowcast data. Elements of the weather are the significant wave height, the primary peak period of waves, the primary wave direction, the mean wind speed and direction. The sea area is 2.5 degrees spacing...

... using a spinner anemometer mounted on the V-52. It is shown that the tower base fore-aft damage equivalent moments can at some mean wind speeds be reduced by as much as 30%. The reduction in the blade root damage equivalent moment is not significant for power set point based curtailment. The learnings...

... Methods Results Month Jan Feb Mar Apr May Jun Wind Energy predicted by simulator (105 kWh) Direction Simulation 7.37 11.18 5.66 8.30 10.28 7.77 Transfer function Method 7.43 11.21 5.75 8.38 10.38 7.84 Under prediction Error 0.84 0.24 1.55 1.02 0.95 0.92 Mean Wind Speed (m/s) 5.44 6.41 5.05 6.10 6.71 5.68...

... as original hindcasting sea-state data. Five components of sea-state are dealt, which are significant wave height, mean wave period, primary wave direction, mean wind speed, prevailing wind direction. Sea-state time series is separated into element sinusoidal signals which are individually expressed...

... of mean wind speeds between WAsP and floating LiDAR, and regression analysis at Waipu Tidal Station were investigated. Furthermore, the computational energy production and mean wind speed of WindPRO were compared with a nearby inland wind farm called Zhubei. From all the investigations and comparisons...

...-downs observed on a fully instrumented multi megawatt wind turbine located in an offshore wind farm are correlated with corresponding observations of shutdowns on surrounding wind turbines. The observed wind turbines have multiple shut-downs at high mean wind speeds. The normal shutdown is brought about...

.... non-op case test case loading jonkman modeling & simulation validation wind turbine wave spectrum wind loading wind energy renewable energy wind speed national renewable energy laboratory subsea system mean wind speed spectrum frequency artificial intelligence turbine...

... was moored in the harbor, and land-based laser wind sensor called WINDCUBE v2 was placed at a flat terrain 500 meters away from the harbor. The results include the comparisons of regression analysis of mean wind speed and direction, mean wind speed and direction profiles, and turbulence intensity. From...

.... Potential discrepancies between simulated loads and measurements are detailed and explained. wind speed frequency site measurement uncertainty quantification equivalent load natural frequency sustainable development turbulence intensity turbine model simulation mean wind speed risk...

... formulation is close to the proposal formulation of wind speed power spectrum in Taiwan. Peak loads calculated using GRF (G=2.23) is near to the influence coefficient method (G=2.4) and larger than the Taiwan's 2006 wind code (G=1.82). coefficient mean wind speed drag force gust response...

... observations (or ASAR images) are required to estimate long-term mean wind speed and 620 to 1300 observations (or ASAR images) are needed to obtain energy density. INTRODUCTION Wind energy is known as a renewable energy source and one of counter measures to solve global warming issues. While onshore wind...

... Bay, Japan, are analyzed. Based on measurements of a propeller anemometer at 23 m height, this paper describes and discusses annual- and monthly-mean wind speeds and directions, frequency distribution of wind speed, wind rose, energy density, atmospheric stability and turbulence intensity at Shirahama...

... are limited by how closely they can represent the wind turbine. turbine artificial intelligence onshore wind blyth site exceedance probability significant wave height significant cell renewable energy machine learning mean wind speed offshore wind turbine wind speed field data subsea...

... ABSTRACT A database of winds and waves around Japan based on 10 years numerical forecast data was newly constructed. The forecast data were composed of significant wave height, significant wave period, peak wave direction, mean wind speed and mean wind direction. They were calculated...

... ABSTRACT Air-flow field over actual wind waves close to water surface was successfully measured using the PIV technique under a strong wind condition where the mean wind speed exceeds 10 m/s. It was found that the air-flow separation and the large-scale vortex are generated in front...

... force spectral density function wind-induced drag force mean wind speed wind spectrum density function subsea system probability density function extreme value upstream oil & gas spectrum Reliability Analysis of Maximum Wind Force for Offshore Structure Design Jing-Jong Jang and Chiou...

... that the aimed response extremes can be predicted accounting for the actual correlation between the environmental processes. This requires a joint probabilistic model for the weather parameters of interest for the problem under consideration. In this paper a joint probabilistic model of mean wind speed...