摘要
考虑几何非线性的影响,推导了两档输电导线与悬垂绝缘子串耦合振动的非线性动力学方程,并运用数值分析软件对不同工况下的振动响应进行了数值求解.基于输电导线振动的位移时程曲线,得到了两档输电导线的非线性耦合振动特性和共振特性,在小传输角度情况下,角度对输电导线的振动幅度没有明显影响,但振动系统的静平衡位置会发生偏移.
The nonlinear vibration equations of two-spans transmission line coupled with suspension insulator string were derived, where the geometric nonlinearity of transmission line was considered. Solutions under differ- ent working conditions were obtained by numerical analysis. The displacement-time curves illustrated the charac- teristics of nonlinear coupled vibration and internal resonance of the system. In the case of small transmission an- gle, the value of the angle had no obvious effect on the amplitude of transmission line, but the static equilibrium position of system was offset.
出处
《动力学与控制学报》
2015年第3期170-176,共7页
Journal of Dynamics and Control
基金
国家自然科学基金资助项目(11272119)
湖南省教育厅重点项目(12A052)~~
关键词
两档输电线路
非线性振动
耦合效应
数值解
共振
two spans transmission line, nonlinear vibration, coupling effect, numerical solution, reso-nance
