东南大学学报（自然科学版）2024，Vol.54Issue(4)：845-851,7.DOI:10.3969/j.issn.1001-0505.2024.04.006
强风多发区柔性光伏支架抗风可靠度评估
Wind-resistance reliability assessment of flexible photovoltaic support in region prone to strong wind
摘要
Abstract
Taking an actual flexible photovoltaic support as the research object,for which a finite element model was established.The accuracy of the model was validated by measuring the dynamic characteristics of the structure.Utilizing the dimension-reduction spectra representation method,a representative set of random wind speed samples within the entire probability space was generated.On this basis,in conjunction with the probability density evolution theory,the effects of basic wind speed,wind load direction,and pre-tension force in the supporting cables on its displacement response and wind-resistance reliability were studied.The re-sults indicate that as the wind speed increases,the wind-resistance reliability of the flexible photovoltaic sup-port structure decreases.When the basic wind speed reaches 25 m/s,the average overall wind-resistance relia-bility of the structure is only 0.14.Increasing the pre-tension force in the supporting cables significantly en-hances the wind-resistance reliability of the structure.However,as the pre-tension force increases,its impact on improving wind-resistance reliability diminishes.When the flexible photovoltaic support structure is subjec-ted to windward loads,it exhibits lower wind-resistance reliability compared to leeward loads.The effect of pre-tension force on improving wind-resistance performance is more pronounced in this scenario.关键词
柔性光伏支架/实测数据/风致振动/抗风可靠度/概率密度演化理论Key words
flexible photovoltaic support/field test data/wind-induced vibration/wind-resistant reliability/probability density evolution theory分类
建筑与水利引用本文复制引用
周锐,王浩,徐梓栋,林禹轩,赵恺雍,刘芸..强风多发区柔性光伏支架抗风可靠度评估[J].东南大学学报（自然科学版）,2024,54(4):845-851,7.基金项目
国家自然科学基金资助项目(52208481,52338011)、中国博士后科学基金资助项目(2023M730581)、江苏省"卓越博士后计划"资助项目(2023ZB674). （52208481,52338011）
