Wear Analysis Of Vibration Damper On Transmission Line Under Mild Wind Vibration Condition

Aeolian vibration often occurs in overhead transmission lines under the action of wind.In order to reduce the broken strand and wire caused by aeolian vibration,anti vibration hammer,damping wire and other devices are often used to reduce the vibration of transmission lines.When the damper is in the vibration condition for a long time,the pre tightening bolt of the damper has insufficient grip on the conductor due to the long-term vibration,which causes the relative movement between the damper and the transmission conductor,and the friction between the damper and the conductor will cause certain damage to the transmission conductor.In view of this,this paper studies the stress of two different types of damper under different rated breaking force.Firstly,several commonly used vibration isolators in China are briefly introduced.In addition,two commonly used theories of contact mechanics are introduced,and one of them is deduced.Then,this paper mainly introduces a method of mathematical model of damper-lumped mass method,and solves the natural frequency of FR-3 damper by this method.Then,the three-dimensional model of damper is established by Solidworks,which is imported into ANSYS Workbench to carry out modal analysis of the model.Finally,the solution results of mathematical model are compared with the simulation results.At last,because the current commonly used anti vibration hammer clamps are mainly divided into hexagon clamps and wrapped clamps,the corresponding analysis of the stress of the conductor in different tension and different situations is carried out,and the corresponding conclusions are drawn.