This paper presents the possibility of suppressing the train-induced vibration on bridges using a linear passive vibration suppression device incorporating inerter. The inerter is a two-terminal mechanical element with the property that the applied force is proportional to the relative acceleration across its terminals. The inerter has been applied to various engineering structures where performance benefits have been identified. However, currently these studies are either limited to simple network configurations with moderate performance improvement, or resulted in complicated configurations with a large number of elements which are impractical for real-life applications. In addition, the potential of using inerter-based absorbers for suppressing the train-induced bridge vibrations has not been taken into consideration. In this paper, a simplified bridge model equipped with a vibration suppression device subjected to series of moving forces is presented. The structure-immittance approach, which can cover all networks with pre-determined numbers of each element type, is adopted for the identification of the optimal absorber configurations. Numerical studies for two bridges, the THSR and the Kum-gang, under three types of railway excitations, the French T.G.V., the German I.C.E. and the Japanese S.K.S. are conducted. It is demonstrated that the overall performance of the bridge can be improved by using the proposed inerter-based configuration. It is also checked that the absorber stroke is much smaller than the inner space of bridge box girder, indicating the practical installation of the absorber. Furthermore, the robustness of the proposed absorber is verified by sensitivity analysis subjected to the change of bridge parameters and the device component values.

本文提出了使用包含惯性的线性被动振动抑制装置抑制桥梁上列车引起的振动的可能性。惰轮是一种两端机械元件，其特性是所施加的力与其两端的相对加速度成正比。惰化器已应用于各种已确定性能优势的工程结构。然而，目前这些研究要么仅限于具有适度性能改进的简单网络配置，要么导致具有大量元素的复杂配置，这对于现实生活应用来说是不切实际的。此外，还没有考虑使用基于惰性材料的减振器来抑制列车引起的桥梁振动的潜力。在本文中，介绍了一种简化的桥梁模型，该模型配备了承受一系列移动力的振动抑制装置。结构-导抗方法可以覆盖所有具有每种元素类型的预定数量的网络，用于识别最佳吸收器配置。对高铁和锦江两座桥梁在法国TGV、德国ICE和日本SKS三种铁路激励下进行了数值研究。证明可以通过使用建议的基于惰性的配置来提高桥梁的整体性能。还检查减振器行程远小于桥箱梁内部空间，说明减振器的实际安装。此外，