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Feasibility Study of the Electromagnetic Damper for Cable Structures Using Real-Time Hybrid Simulation

机译：基于实时混合仿真的电缆结构电磁阻尼器的可行性研究

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摘要

Cable structure is a major component of long-span bridges, such as cable-stayed and suspension bridges, and it transfers the main loads of bridges to the pylons. As these cable structures are exposed to continuous external loads, such as vehicle and wind loads, vibration control and continuous monitoring of the cable are required. In this study, an electromagnetic (EM) damper was designed and fabricated for vibration control and monitoring of the cable structure. EM dampers, also called regenerative dampers, consist of permanent magnets and coils. The electromagnetic force due to the relative motion between the coil and the permanent magnet can be used to control the vibration of the structure. The electrical energy can be used as a power source for the monitoring system. The effects of the design parameters of the damper were numerically analyzed and the damper was fabricated. The characteristics of the damper were analyzed with various external load changes. Finally, the vibration-control and energy-harvesting performances of the cable structure were evaluated through a hybrid simulation. The vibration-control and energy-harvesting performances for various loads were analyzed and the applicability to the cable structure of the EM damper was evaluated.
机译：电缆结构是大跨径桥梁（如斜拉桥和悬索桥）的主要组成部分，它将桥梁的主要载荷转移到塔架上。由于这些电缆结构承受连续的外部负载，例如车辆和风荷载，因此需要振动控制和电缆的连续监控。在这项研究中，设计并制造了一个电磁（EM）阻尼器，用于振动控制和电缆结构的监控。电磁阻尼器，也称为再生阻尼器，由永磁体和线圈组成。由于线圈和永磁体之间的相对运动而产生的电磁力可用于控制结构的振动。电能可用作监视系统的电源。数值分析了阻尼器设计参数的影响，并制造了阻尼器。通过各种外部载荷变化来分析阻尼器的特性。最后，通过混合仿真评估了电缆结构的振动控制和能量收集性能。分析了各种负载的振动控制和能量收集性能，并评估了电磁阻尼器的电缆结构的适用性。

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