四分裂导线尾流驰振数值模拟研究  

Numerical simulation on wake galloping of quad bundle conductor

作　　者：严波[1] 蔡萌琦[1] 吕欣[2] 周林抒[1] 

机构地区：[1]重庆大学工程力学系,重庆400044 [2]重庆大学土木工程学院,重庆400044

出　　处：《振动与冲击》2015年第1期182-189,共8页Journal of Vibration and Shock

基　　金：国家自然科学基金(51277186)

摘　　要：利用风洞试验测量四分裂导线的空气动力系数,得到各子导线的空气动力系数随风攻角的变化曲线,表明尾流干扰对处于上风子导线尾流区的子导线的气动特性影响明显。给出利用ABAQUS有限元软件模拟分裂导线尾流驰振过程的方法,进而针对典型四分裂导线线路段,模拟得到包括整档舞动和次档距振动的尾流驰振现象,分析了整档舞动和次档距振动的特征,以及间隔棒不同布置方式和风速对尾流驰振的影响。Aerodynamic coefficients varying with the angle of attack were measured in wind tunnel tests.It is shown that the aerodynamic characteristics of a sub-conductor locating at the wake zone of another sub-conductor are apparently affected by the wake interference.The wake galloping including full span galloping and sub-span oscillation of a typical quad bundle con-ductor line was numerically simulated by means of ABAQUS software.The effects of mounted spacers with non-uniform and uni-form arrangement schemes at different wind speeds on the wake galloping characteristics of the line were analyzed.

关 键 词：四分裂导线 空气动力特性 尾流驰振 数值模拟 

分 类 号：TM753[电气工程—电力系统及自动化] O39[理学—工程力学]