張力Bang-Bang制御によるケーブルの渦励振振動の抑制(機械力学,計測,自動制御)

概要

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The vortex induced vibration, generating on suspension bridge cables or high voltage lines are the most serious problems. Some authors have reported the effectiveness of both active and passive control methods in order to solve these vibration problems. However, most of them were focused on only the first order mode in-plane transverse vibration, and the high order mode vibration and out-of-plane vibration were not studied sufficiently. In this study, we experimentally examined the control of these out-of-plane and high order mode vibrations, which are induced by vortex. The experimental device was the most simple model consisting of single wire and one cylinder located on the middle part of the wire. For the vibration control of the system, we adopted the bang-bang control method, which nonlinearly varied the tension of the cable based on the Variable Structure System (VSS) theory.We experimentally employed the electrical magnetic actuator which can increase and decrease the tension from the initial value. As a result, we could reduce the now-induced vibration and confirmed the effectiveness of this control procedure. Additionally, the control effect of this method was confirmed by using Iwan model.
一般社団法人日本機械学会の論文
2003-06-25