Classical absorber for vibration suppression of a continuous structure is constructed as a spring-mass oscillator, which only provides coupling force to suppress the vibration of primary structure. In this study, absorber beam is introduced and coupled on the continuous primary beam with magnetic interaction. Thus, the magnetic interaction and coupling bending moment affect the responses of primary beam. Based on the model of the system and Galerkin truncation, the natural frequencies for different magnetic parameters are obtained, which demonstrates that the fundamental frequency can be reduced to zero and the vibration of primary beam can be suppressed in a wide frequency band. Considering the vibration suppression on frequency band, we propose two criteria to evaluate the vibration suppression effect: one is the width of band for vibration suppression and the other is the width for vibration absorption. The two criteria not only show the vibration reduction effect but also correspond to different vibration suppression mechanism. Due to the advantages of zero fundamental frequency induced by the proposed magnetic interaction coupling and wide vibration suppression frequency band, utilizing absorber beam in vibration suppression of continuous structure has potential applications for flexible aim in the fields of manufacturing and aerospace.

中文翻译：

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基于电磁相互作用的连续梁减振器设计

用于抑制连续结构振动的经典吸收器构造为弹簧-质量振荡器，其仅提供耦合力以抑制初级结构的振动。在这项研究中，吸收器束被引入并通过磁力相互作用耦合到连续的初级束上。因此，磁相互作用和耦合弯矩会影响主光束的响应。基于系统模型和伽勒金截断法，获得了不同磁参数的固有频率，表明在较宽的频带范围内，基频可以减小到零，并且可以抑制主波束的振动。考虑到频带上的振动抑制，我们提出了两个标准来评估振动抑制效果：一个是用于抑制振动的带的宽度，另一个是用于吸收振动的宽度。这两个标准不仅显示了减振效果，而且对应于不同的减振机理。由于所提出的磁相互作用耦合产生的零基频和宽的振动抑制频带的优点，在连续结构的振动抑制中利用吸收器梁在制造和航空航天领域具有灵活的应用潜力。