报告题目：Passive vibration control through frequency and mode assignment via structural modifications

报告人： 欧阳华江 教授

报告时间：2024年5月28日14点

报告地点：6B309

报告人简介：

  欧阳华江于1982年、1985年、1989年在大连理工大学分别获得学士、硕士、博士学位；1985年6月在大连理工大学工程力学系参加工作，2010年1月成为利物浦大学终身教授，现在是西南交通大学教授。入选两个国家级高层次人才项目，两个四川省高层次人才项目；物理学会（Institute of Physics）会士；高等教育研究院(Academy of Higher Education)会士。声学和振动领域顶级期刊Journal of Sound and Vibration (JSV)和机械工程领域顶级期刊Mechanical Systems and Signal Processing的责任编辑。发表了293篇SCI期刊论文，被引超过万次（h因子57)。主要研究领域是结构动力学与控制、固体力学、计算力学。

报告内容简介

Passive vibration control is widely used in engineering because of its high reliability and low cost. There are numerous passive vibration control strategies. Ours is assigning natural frequencies so that resonance can be avoided or assigning modes to influence how vibration may form. These are achieved through suitable structural modifications determined by inverse analysis. Our approach uses only a small number of measured receptances and in principle a theoretical model of the structure to be controlled is not needed.

        In this talk, our vibration control strategy and the concept of receptances are explained, the key challenges using this approach are highlighted and what can be achieved is demonstrated through several practical examples.