中文摘要：

通过对槽式聚光镜模型进行风洞测压试验，分析镜面平均风压和脉动风压分布特性，并给出部分测点的脉动风压功率谱图，对影响脉动风压分布的因素进行分析。同时还探讨脉动风压的概率分布，并对峰值因子的取值给出建议。研究结果表明：镜面竖向仰角及水平风向角不同时影响脉动风压分布的主导因素不同；镜面部分面积的风压分布在某些工况下有明显非高斯特性；抗风设计时可采用目标概率法来确定镜面的峰值因子以防止部分区域的风压保证率过高。此外还给出镜面各分区的峰值风压系数值。

英文摘要：

The wind tunnel test of trough concentrating mirror model was carried out to analyze the mean and fluctuating wind pressure distribution characteristics of mirror, and to analyze the influence factors of fluctuating wind pressure distribution by checking the power spectrum of wind pressure. At the same time, the probability distribution of fluctuating wind pressure was also discussed, and value suggestion of the peak factor was given. The results show that the different vertical elevation of angle and horizontal wind angle of the mirror will have different dominant factor of fluctuating wind pressure distribution. The wind pressure distributions in certain area of mirror in certain conditions have significantly non-Gaussian characteristics. The target probability method is used to determine the peak factor of the mirror in wind-resisting design to prevent too higher guaranteed rate of wind pressure in certain region. It also gives the peak pressure coefficient values of each mirror partition.