Research on Cable Vibration Reduction Method Based on Electromagnetic Control Damper
A solution to the multi-order coupled vibration problem of tension cables is proposed to provide a reference for solving this type of engineering problems.In this paper,an electromagnetically regulated damper is designed and a corresponding damping method is proposed for suppressing the multi-order coupled vibration of a tension cable.In order to verify the broad-spectrum damping performance of this electromagnetic modulating damper,various tests including single-order and coupled vibrations were designed for the model cable,and the test results were compared with those of the traditional viscous dampers.In single-order vibration problems,the electromagnetic modulation damper is able to realize the damping of cable vibration in a wider frequency range;in multi-order coupled vibration problems,the electromagnetic modulation damper is able to realize the target identification and control of the main vibration modes.The use of electromagnetic control devices to drive the corresponding damping elements to intervene in the vibration system,realizing the real-time control of the main vibration modes of the cable is an effective way to inhibit the multi-order coupled vibration of the cable.
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