为了解决平板型太阳能聚光器因受力不均匀导致的聚光效率下降的问题, 提出了以9块阵列透镜作为聚光模组的装配方式.设定聚光模组阵列与光波导板之间的空气间隙为2 mm, 通过ANSYS软件对聚光器进行线性静力分析和模态分析.设定风速为18 m/s, 高于指标等级14 m/s, 聚光器的模态分析基频为0.038 s, 满足结构刚度无需考虑动态影响的条件.讨论了结构组件在受到极限静风载的情况下, 聚光模组与光波导板结构之间的位移变化和对应的前6阶的模态系数.结果表明: 静力分析情况下聚光模组结构与光波导板之间的空气间隙最大位移为0.049 mm, 满足设计精度要求; 在5种角度工况下, 前6阶模态振型与施加预应力的模态振型相差在1%以内, 且对应振型图形态类似, 证明风载荷对于振型无影响.

In order to solve the problem of the drop of the condenser efficiency caused by the non-uniform force of the flat panel solar concentrator, an assembly method using nine array lenses as the condenser module was proposed. The air gap between the condenser module array and the optical waveguide board was set to 2 mm. Linear static analysis and modal analysis of flat solar concentrators were performed using ANSYS software. The set wind speed was 18 m/s, which was higher than the index level of 14 m/s, and the modal analysis fundamental frequency of the concentrator was 0.038 s. It is not necessary to take into account the dynamic influence conditions for the structural rigidity. The displacement of the concentrator and the optical waveguide plate structure under the condition of extreme static wind load and the modal coefficients of the first six orders in the corresponding case were discussed. The results show that the maximum displacement of the air gap between the concentrator and the optical waveguide plate structure is 0.049 mm, meeting the accuracy requirement. In the five kinds of the angle condition, the difference between the front 6 modes modal shape prestressed and processing mode shape is within 1%, and the corresponding shape patterns are similar. It is proved that the wind load has no effect on the mode shape.