Wire-breaking induced vibration and control of long-span electric transmission tower-line system

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作者：
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China [1 ]
不详 [2 ]
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Wuhan Ligong Daxue Xuebao | 2008年 / 9卷 / 84-88期
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摘要：
A complete finite element model of a long-span transmission tower-line system is established with the generalized commercial finite element dynamic program ANSYS/LS-DYNA, and the explicit dynamical integral method is employed to solve the dynamic responses of tower-line system to broken wires. Additionally, lead-rubber dampers are installed on head of tower to control the vibration induced by broken wires. With an example of long span transmission crossing Hanjiang River, it is seen that the dynamic simulation approach introduced in this paper can demonstrate the kinetic process of tower-line system subjected to wire ruptures. Meanwhile, it is performed that lead-rubber damper is available to reduce the dynamic response of tower.
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