报  告  人：Chin An Tan  美国韦恩州立大学教授

报告时间：2021年11月23日（周二）上午10:30-11:30

报告地点：交通楼727会议室

线上腾讯会议（会议号：418 496 326）

举办单位：国重实验室 科技处

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报告摘要：

It is well known that the natural frequencies of a coupled vehicle–bridge interaction system are time-varying. While this knowledge is useful for applications in bridge health monitoring, it does not provide an understanding of the relations between the excitation and coupled system responses, nor leads to developments of effective control strategies to mitigate vibration. The time–frequency characteristics of the transmissibility functions are good to gain fundamental understanding and insights of the coupling dynamics in relation to the matching of bridge and vehicle natural frequencies. An important aspect of the transmissibility formulation is that it leads to the development of physics-based vibration control strategies in the frequency domain. By applying the principle of fixed points from vibration absorber designs to the transmissibility functions, an optimally tuned vehicle suspension to mitigate bridge vibration is obtained. The tuning strategy depends only on a priori known structural parameters. Thus, the tuning strategy provides useful guidelines in practice and is shown to be effective in reducing the vibrations of both the moving vehicle and the bridge.

专家简介：

Professor Chin An Tan（陈振安教授），美国韦恩州立大学（Wayne State University）机械工程系教授、美国机械工程师协会（ASME）院士。毕业于美国加州大学伯克利分校（University of California, Berkeley），机械工程博士。曾任浙江工业大学特聘教授。长期研究领域包括结构动力学、振动与控制、系统分析研究，在车辆工程（盘式制动器动力学、先进制造）和土木工程（车桥耦合问题、桥梁结构健康监测）应用方面具有多年的研究经验。目前致力于集成动力学、控制、自动驾驶与交通与机器应用，在道路预瞄控制、自动泊车、即时定位与地图构建（SLAM）与自动机器人方面开展深入的研究。在《Mechanical Systems and Signal Processing》《Journal of Sound and Vibration》等学术期刊发表论文百余篇，提出p-squared（P2）理论并出版了相应的学术专著。