基于抗弯试验的复合横担受力分析及法兰优化设计

Force Analysis on Composite Cross Arm And Flange Optimization Design Based on Bending Test

针对复合横担中的支柱绝缘子在运行中主要受弯曲力和压力的特点,结合支柱绝缘子抗弯试验和树脂胶黏剂剪切强度试验结果,进行有限元计算,对法兰结构进行优化分析,得出优化结果,更新法兰设计。计算结果表明,法兰设计裕度较大,节省了成本并减轻了横担重量。

The post composite insulator（PCI） that forms a cross arm is mainly acted by compression bending force when in operation.According to the results of bending test on PCI and shear strength test on resin adhesives, a PCI model is built and the stress is computed by finite element method. The flange structure optimization is analyzed, the result is obtained and a new flange design is given. The calculation results show that the material cost is saved and the weight of cross arm is reduced.