Electromagnetic damper (EMD) has been widely studied in the control of vibrating structures. It has higher tunability when compared with a viscous damper and lower cost when compared with a magnetorheological damper. However, its use is limited mainly due to the high ratios of system mass/volume to the damping force produced. In this paper, an electromagnetic shunt damper (EMSD) with opposing magnets configuration to provide a tunable damping force is proposed for vibration damping applications. The proposed EMSD configuration allows a significant reduction in size in comparison with other similar designs of EMSD found in the literature. Both simulations and experiments are conducted to verify the improvements of this proposed design over existing ones. In particular, an ESMD comprising six opposing magnets is designed and tested on a single-degree-of-freedom (SDOF) vibration system. The damping coefficient of the proposed EMSD offers a large tunable range with maximum damping c...

中文翻译：

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可调谐电磁分流阻尼器，带有相对磁体配置

电磁阻尼器（EMD）在振动结构的控制中得到了广泛的研究。与粘性阻尼器相比，它具有更高的可调性，而与磁流变阻尼器相比，它具有更低的成本。但是，其使用受到限制主要是由于系统质量/体积与所产生的阻尼力之比很高。在本文中，提出了一种具有相对磁体配置的电磁分流阻尼器（EMSD），以提供可调的阻尼力，用于振动阻尼应用。与文献中发现的其他类似的EMSD设计相比，建议的EMSD配置可显着减小尺寸。进行了仿真和实验，以验证该建议设计相对于现有设计的改进。尤其是，在单自由度（SDOF）振动系统上设计并测试了包含六个相对磁体的ESMD。拟议的EMSD的阻尼系数可提供较大的可调范围，并具有最大的阻尼系数。