基于流固耦合的碳纤维复合芯导线微风振动特性数值分析  

Dynamic Analysis of Aeolian Vibration of Aluminum Conductor Composite Core Based on Fluid Structure Interaction

作　　者：刘晨[1] 芮晓明[1] 姬昆鹏[1] 齐翼[1,2] 

机构地区：[1]华北电力大学能源动力与机械工程学院,北京102206 [2]中国电力科学研究院,北京100192

出　　处：《华北电力大学学报（自然科学版）》2016年第2期56-61,共6页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金青年基金项目(51205128)

摘　　要：对发生微风振动的新型碳纤维复合芯导线和与其截面积相近的传统钢芯铝绞线的动态特性进行了对比研究。基于计算流体动力学(CFD)方法,利用Adina软件分别建立了两种导线微风振动流固耦合CFD仿真模型。获得不同截面导线竖向振幅比随约化速度变化曲线,对比其升阻力特性。通过对流场中做强迫振动的导线进行数值模拟,利用导线气动力载荷响应求得导线风能输入功率,从风能输入角度分析不同截面形状导线微风振动特性的差异。研究所得两种不同截面形状导线气动力特性的差异,可为新型导线在工程领域的应用提供参考。Abstract： This paper focuses on the dynamic characteristics of Aluminum Conductor Composite Core （ACCC）, com- pared to Aluminum Conductor Steel Reinforced （ACSR） with same cross section. In order to study on the aeolian vi- bration dynamic response of conductor, computational fluid dynamics （CFD） method is adopted to build two different 2 - D fluid-structure int^active model created with the finite element software Adina. Carries on the numerical simula- tion with the variation of wind speed, curves of vertical amplitude ratio to reduced speed are obtained. The numerical simulation results show the effect of conductor roughness on the resultant aerodynamic forces. By simulating the condition of forced vibration and using the aerodynamic load response of conductors to get its wind power input. The response characteristics of aeolian vibration in terms of conductor cross section are analyzed. Researching on the difference in conductor aerodynamic properties influence by shape of conductor, it supplies the reference to the applications of ACCC in engineering.

关 键 词：碳纤维复合芯导线 钢芯铝绞线 微风振动 计算流体动力学 流固耦合 气动力特性 

分 类 号：TM726[电气工程—电力系统及自动化]