Analysis on nonlinear dynamics characteristics of continuum iced bundled conductors

作者：Liu H.^*; Zhang Q.; Hao S.

来源：China Mechanical Engineering, 2014, (10): 1303-1307.

• Continuum model
• Galloping
• Iced bundle conductor
• Linear nature frequency

Three-dimensional coupling continuum model of iced 4-bundle conductor was established based on modelling methods of flexible cable. A thorough analysis was conducted to determine the effects of structure parameters on every order modal linear nature frequency of the system, orbit diagrams and time-history curves of galloping system were presented through numerical simulation by means of the Mathematica program. The system belongs to vertical self-excited galloping mode according to stability criterion of dynamics system, vibration frequencies departure from the same order linear nature frequencies, it shows that nonlinear factors make amplitude produce influences on frequency. Continuum model of iced conductor can reflect characteristics of the system by comparing with finite element.

• 出版日期2014
• 单位天津大学