Analysis of the Probability Model of Wind Load on the Offshore Wind Turbine

• 作者: Bowen Jiang Mingjie Zhao Pan Liu Ziyuan Tang
• 来源期刊: 土木工程期刊(英文)
• 学科: 地球科学
• 关键词: The OFFSHORE WIND TURBINE Spectrum ANALYSIS Non-Central CHI-SQUARE Distribution PROBABILITY Density Function
• 年，卷（期）: 2015,（2）
• 页码范围: 261-267
• 页数: 7页
• 分类号: P7

摘要

According to the actual measurement data, probability models of horizontal wind load were obtained based on wind velocity statistic and power spectral density function of fluctuating wind velocity through stochastic sampling and using spectrum analysis method. Through the comparison of two models, probability models of horizontal wind load based on probability models of fluctuating wind velocity were obtained by revising the mean and variance of fluctuating wind velocity. Results show that the variance takes lower value when the power spectral density function of fluctuating wind velocity is used to obtain the probability model of horizontal wind load. The quadratic term of fluctuating wind velocity takes a small contribution value in total wind load with almost no contribution to the model of horizontal wind load. It is convenient for practical engineering to obtain the models of horizontal wind load by using probability models of fluctuating wind velocity.