基于混合因素均匀设计的槽式聚光器结构优化

Structural Optimization of Trough Condenser Based on Uniform Design of Mixed Factors

为控制槽式聚光器的成本,以镜面位移和杆件应力为约束条件,以主三角桁架和拉翅的截面尺寸为连续变化的定量参数,拉索初拉力为状态变化的定性参数,采用均匀设计法对聚光器进行了优化.根据优化得到的参数取值,采用BIM(Building Information Modeling)技术进行槽式聚光器三维模型的建立,并依据模型包含的钢材种类、数量、长度、质量等信息进行钢材成本的计算.结果表明:均匀设计法可以用于含有定性和定量因素的聚光器结构优化,在满足既定约束条件下聚光器的钢材成本可降低10.32%,用钢量可减少11.86%,优化效果较好.本文提出的方法对于同时包含定量参数和定性参数的复杂优化问题具有一定参考价值,借助于聚光器三维BIM信息模型对钢材成本的计算,进一步证明了该优化方法的可行性.

To control the cost of trough condenser,uniform design method was adopted to optimize its structure.Displacement and stress were considered as constraints,triangular truss＇ s rod sizes and the wing＇s rod sizes were taken as quantitative parameters,and the initial tension of cable was set as qualitative parameter.Then,according to the optimized parameters,the three-dimensional model of trough condenser including steel types,quantity,length,quality and other information was established by BIM technology to calculate the cost of steels.The result indicates that uniform design method can be used to optimize the structure of condenser with qualitative and quantitative factors.Under the constraints,the cost of the condenser is reduced by 11.76% and the amount of steel is saved by 11.86%,which shows that the optimization is effective.The proposed method has a certain reference value for the complex optimization problems including quantitative parameters and qualitative parameters.The cost of steels according to the 3D BIM information model further proves the feasibility of the method.