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本文叙述了一种有效而实用的顺风向风荷载模拟方法,利用互谱密度函数矩阵的分解,考虑了随高度变化的风谱,由不对称互相关函数引起的包括共谱和重谱的风互功率谱以及与频率有关的相位关系。通过一组余弦函数的和对随机形式的脉动风进行了模拟。文中模拟计算结果与实测结果进行了比较分析,模拟风能较好地满足自然风的基本特性。
In this paper, an effective and practical windward wind load simulation method is described. By using the decomposition of cross-spectral density function matrix, the winds that vary with altitude are considered, and the winds that include co-spectra and heavy spectra caused by the asymmetric cross-correlation function Mutual power spectrum and frequency-dependent phase relationship. The random form of fluctuating wind is simulated by the sum of a set of cosine functions. In this paper, the simulated results and the measured results are compared and analyzed. The simulated wind energy can better meet the basic characteristics of natural wind.