摘要
针对复合材料弹性模量低、易变形的特点,设计了110kV输电杆的外形尺寸,优化了截面形状,并动态验证了各项力学性能,可知整体刚度增加,使纤维增强塑料(FRP)在更高的电压等级应用成为可能。利用随机理论模拟动态风速,分析了电杆在动荷载下的变化规律。结果表明,电杆在动荷载下力学性能依然满足规范标准要求,复合材料可推广于110kV电压等级。
Aiming at the characteristics of low elastic modulus and deformation, this paper designs the outline size of 110 kV transmission poles, optimizes its section shape and verifies its mechanical property dynamically. Therefore, the o- verall rigidity of FRP increases and it makes FRP apply to 110 kV voltage levels possibly. The stochastic theory is applied to simulate wind speed dynamically and analyze the change rule of transmission poles in dynamic loading. The results show that under the conditions of dynamic loading, the mechanical properties of transmission poles is still meet standard requirements so that composite material can be used in 110 kV voltage grade.
出处
《水电能源科学》
北大核心
2012年第12期157-159,215,共4页
Water Resources and Power
关键词
FRP
110kV输电杆
非线性
脉动风
时程分析
FRP
110 kV transmission poles
nonlinearity
fluctuating wind
time history analysis
