【作者】 许凌志； 徐赵东； 黄兴淮；

【Author】 Xu Lingzhi,Xu Zhaodong,Huang Xinghuai (Southeast University,Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education )

【机构】 东南大学混凝土及预应力混凝土结构教育部重点实验室；

【摘要】 本文基于覆冰输电线舞动的二自由度模型,即垂直向自由度和扭转向自由度耦合,用拉格朗日方程建立动力学平衡方程。并结合一个实际算例,运用Newmark-β动力分析法,对其进行动力特性分析。随后加入粘弹性阻尼防舞器,提出计算模型,分析其减振效果。数值模拟表明:加入粘弹性阻尼防舞器后,可有效抑制输电线舞动。更多还原

【Abstract】 A two DOF model with the coupling of vertical and torsional motions is considered to study galloping of transmission lines in this paper.Based on Lagrange equation,The equation of motion is established.dynamic analysis is obtained by using Newmark-βmethod in an example. Finally,anti-galloping VED is used to investigate its effect of vibration control.更多还原