CAJ | 학술논문

高压输电线路导线覆冰舞动分析的主要困难，是由导线的大幅运动与随导线几何位形而变化的非线性气动力之间的相互耦合产生的。对伴有大幅扭转运动的分裂导线的舞动，由于安装了间隔棒和防舞器，必须考虑导线结构产生的约束非线性和重力非线性。本文应用虚功原理建立了整个分裂导线结构总位形的基本虚功方程，分析推导了间隔棒和防舞器的非线性动态特性与非线性约束特性，在此基础上，最后得到了分裂导线结构舞动分析的动力学模型。所得结果为进一步分析计算分裂导线的舞动打下一个基础。
고압수전선로도선복빙무동분석적주요곤난，시유도선적대폭운동여수도선궤하위형이변화적비선성기동력지간적상호우합산생적。대반유대폭뉴전운동적분렬도선적무동，유우안장료간격봉화방무기，필수고필도선결구산생적약속비선성화중력비선성。본문응용허공원리건립료정개분렬도선결구총위형적기본허공방정，분석추도료간격봉화방무기적비선성동태특성여비선성약속특성，재차기출상，최후득도료분렬도선결구무동분석적동역학모형。소득결과위진일보분석계산분렬도선적무동타하일개기출。
The galloping phenomenon of bundled conductors in an overhead transmission line is complicated by the interaction between the large amplitude vibration of the conductors and the geometrically nonlinear, time-dependent aerodynamic loads. For bundled transmission line of long span, the galloping phenomenon is characterized by large amplitude, low frequency vibration with large global torsional motion. Non-linear geometric constraints and non-linear gravitational moments are present as a result of the spacers and galloping control devices. In this paper, a basic dynamic equation for bundled transmission lines in a global coordinate system is developed on the basis of virtual work principle. The non-linear dynamics of spacers and galloping control devices are investigated. A galloping model for dynamic configurations of bundled transmission lines is obtained. The present results lay down the foundation for further study of the problem.