光伏支架用纤维增强复合材料的设计和应用研究

RESEARCH ON DESIGN AND APPLICATION OF FRP FOR PV BRACKET

叙述了玄武岩纤维和玻璃纤维增强复合材料的组成和制备工艺,分析了其力学性能,将纤维增强复合材料应用于光伏支架(下文简称为“复合材料光伏支架”)上,依据相关规范,运用MIDAS软件进行复合材料光伏支架的结构建模分析,通过与钢结构光伏支架的对比,总结了二者的主要区别,提出了复合材料光伏支架的结构设计关键点。研究结果表明:玄武岩纤维和玻璃纤维增强复合材料可以满足光伏支架的各项基本要求,具有较高的强度及较好的稳定性;用于光伏支架可时需按照服役环境要求,进行防腐、耐候、热工、绝缘、耐火、耐磨设计;使用时应重新进行该复合材料结构设计计算;材料强度虽有安全余量,但需对连接节点处的螺栓进行重新设计。

In this paper,the composition and preparation process of a kind of basalt fiber(BF)and glass fiber(GF)reinforced composite material are described,and its mechanical properties are analyzed.The FRP is applied to the PV bracket(hereinafter referred to as"composite PV bracket").According to the relevant specifications,MIDAS software is used to conduct the structural modeling analysis of the composite PV bracket.By comparing with steel structured PV brackets,the main differences between the two are summarized and the key points of structure design of composite PV bracket are put forward.The research results show that BF and GF reinforced composite materials can meet the basic re-quirements of PV brackets,with high strength and good stability.When used for PV brackets,anti-corrosion,weather resistance,thermal engineering,insulation,fire resistance,and wear resistance design should be carried out according to the requirements of the service environment.When in use,the composite material structure design calculations should be redone.Although there is a safety margin for material strength,it is necessary to redesign the bolts at the connection nodes.