时间：2019年9月20日（周五）中午12点30分
地点：北洋园校区50楼A333教工活动中心(咖啡厅)
报告题目：有趣的力学超材料
主讲人：王毅泽
【个人简介】
王毅泽，天津大学机械工程学院教授。2000年于哈尔滨工程大学航天与建筑工程学院获工学学士学位。2006年和2009年先后毕业于哈尔滨工业大学航天学院，获工学硕士和博士学位。曾分别在日本东京工业大学任日本学术振兴会JSPS研究员（2009.11-2011-11）、德国弗莱贝格工业大学任洪堡学者（2013.06-2014.05）。主要研究方向为固体力学中的弹性波理论及应用。曾获国家优秀青年科学基金、全国优秀博士学位论文提名奖等。已在JMPS、Mech. Mater.、IJSS等杂志上发表50余篇SCI论文，其中第一/通讯作者50篇。SCI他引1000余次，H因子23。
【报告内容简介】
声子晶体与力学超材料是由不同材料组成的人工周期性结构，其显著的特征是弹性波的频散关系将呈现分离的能带形式，从而形成弹性波的禁带或带隙行为，使得弹性波无法在其中传播，以及表现出反常的波动特性。声子晶体与力学超材料的出现为弹性波的调控提供了丰富的手段。在许多工程领域具有重要的应用前景，如新型波导与滤波器、隐身结构以及减振降噪装置等。本报告将介绍力学超材料的一些波动特性，简述其基本原理，进而讨论当前本领域的研究进展。
【相关学科】力学、机械、热能、土木
【主办单位】校工会、图书馆、科研院、校青年教师联谊会
Lecture: Artificial photosynthesis system—Marriage between enzyme and photocatalyst
When: 12:30 p.m., Friday, September, 20th, 2019
Where: A333, 50 Building, School of Chemical Engineering and Technology, Beiyang campus
Lecturer:
Yi-Ze Wang is a Professor at School of Mechanical Engineering of Tianjin University. He obtained his PhD in Mechanics from Harbin Institute of Technology in 2009. After graduation, he performed his research as the JSPS Fellow in Tokyo Institute of Technology in Japan (2009.11-2011-11) and Humboldt Fellow in TU Freiberg in Germany (2013.06-2014.05). His research is mainly focused on the theory and application of elastic waves in solid mechanics. He has co-authored over 50 peer-reviewed scientific papers in which 50 papers are denoted as the first/corresponding author. His total citation is more than 1000 and the h-index is 23.
About the Lecture:
Phononic crystals and mechanical metamaterials are arranged by different materials periodically, which can perform as the artificial structures. One of the prominent characteristics is the diverse energy bands in the elastic wave dispersion. As a result, the stop bands or band gaps will be generated, in which the elastic wave cannot propagate and the unusual wave behaviors will show. The appearances of phononic crystals and mechanical materials can enhance the technologies to control elastic waves. Their applications on some engineering fields would be achieved, e.g. new waveguides and filters, cloaking structures and reduction of the vibration and noise. This presentation will introduce some wave properties of mechanical metamaterials, describe the fundamental mechanisms and discuss the development in this field.
Relevant Discipline: Mechanics, Mechanical, Thermal energy, Civil
Organizers: Trade Unions, Library, Office of Science and Technology, Young Teachers Association
All students and staff of Tianjin University are welcome.