论文部分内容阅读
本文提出一种新型的110kV双回路窄基角钢塔,并研究其结构优化设计。文中采用有限元法的梁和桁架混合单元建立窄基角钢塔结构的力学模型;采用萤火虫算法,以结构强度、稳定性和挠度为约束条件,以结构的重量为优化目标,对窄基角钢塔各杆件截面尺寸进行优化设计。优化分析结果减轻了窄基角钢塔结构重量,达到了充分利用各杆件的力学性能和节约成本的目的。本文结构优化设计的方法可为同类工程提供借鉴。
In this paper, a new type of 110kV double-circuit narrow-angle steel tower is proposed and its structural optimization design is studied. In this paper, the finite element method beam and truss hybrid unit to establish the mechanical model of narrow-angle steel tower structure; using firefly algorithm, the structural strength, stability and deflection constraints, the weight of the structure as the optimization target, the narrow-angle steel tower The cross-section size of each rod is optimized. The optimized analysis results reduce the weight of the narrow-angle steel tower and reach the goal of making full use of the mechanical properties and cost-saving of each rod. This method of structural optimization design can provide reference for similar projects.