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Modelling And Simulation Of Nonstationary Non-Gaussian Wind Speed And Wind Pressure Coefficients, Minyu Xiao
Modelling And Simulation Of Nonstationary Non-Gaussian Wind Speed And Wind Pressure Coefficients, Minyu Xiao
Electronic Thesis and Dissertation Repository
The time series of the wind speed from hurricane and downburst events can exhibit nonstationary non-Gaussian characteristics. Moreover, the time series of the wind pressure for a stationary wind may not be Gaussian. This thesis is focused on analyzing, characterizing, and simulating nonstationary/stationary Gaussian/non-Gaussian of wind speed and wind pressure coefficients by using time-frequency transform techniques such as the S-transform (ST) and discrete orthonormal S-transform (DOST). It is shown that by removing the mean of downburst winds, the multivariate nonstationary downburst wind speed processes can be efficiently decomposed and simulated by applying ST and DOST. It was also found that …
Assessment Of Tropical Cyclone Wind And Wave Hazards And Their Effect On The Reliability Of Wind Turbines, Chao Sheng
Assessment Of Tropical Cyclone Wind And Wave Hazards And Their Effect On The Reliability Of Wind Turbines, Chao Sheng
Electronic Thesis and Dissertation Repository
Tropical cyclone (TC) induces strong winds, heavy rainfalls, and storm surge. They cause fatalities and property damages, especially in the coastal regions that are prone to TC hazards. The TC wind or wave assessments were reported in the literature. The assessment provides the required hazard characterizations for assessing the reliability and risk of structures such as onshore and offshore wind turbines (WTs). The present study considered sites near the coastline of mainland China. It is focused on 1) the assessment of using different historical best-track datasets on the development of stochastic TC track models and on the estimated TC wind …