時(shí)間：2019年9月20日（周五）中午12點(diǎn)30分
地點(diǎn)：北洋園校區(qū)50樓A333教工活動(dòng)中心(咖啡廳)
報(bào)告題目：有趣的力學(xué)超材料
主講人：王毅澤
【個(gè)人簡介】
王毅澤，天津大學(xué)機(jī)械工程學(xué)院教授。2000年于哈爾濱工程大學(xué)航天與建筑工程學(xué)院獲工學(xué)學(xué)士學(xué)位。2006年和2009年先后畢業(yè)于哈爾濱工業(yè)大學(xué)航天學(xué)院，獲工學(xué)碩士和博士學(xué)位。曾分別在日本東京工業(yè)大學(xué)任日本學(xué)術(shù)振興會(huì)JSPS研究員（2009.11-2011-11）、德國弗萊貝格工業(yè)大學(xué)任洪堡學(xué)者（2013.06-2014.05）。主要研究方向?yàn)楣腆w力學(xué)中的彈性波理論及應(yīng)用。曾獲國家優(yōu)秀青年科學(xué)基金、全國優(yōu)秀博士學(xué)位論文提名獎(jiǎng)等。已在JMPS、Mech. Mater.、IJSS等雜志上發(fā)表50余篇SCI論文，其中第一/通訊作者50篇。SCI他引1000余次，H因子23。
【報(bào)告內(nèi)容簡介】
聲子晶體與力學(xué)超材料是由不同材料組成的人工周期性結(jié)構(gòu)，其顯著的特征是彈性波的頻散關(guān)系將呈現(xiàn)分離的能帶形式，從而形成彈性波的禁帶或帶隙行為，使得彈性波無法在其中傳播，以及表現(xiàn)出反常的波動(dòng)特性。聲子晶體與力學(xué)超材料的出現(xiàn)為彈性波的調(diào)控提供了豐富的手段。在許多工程領(lǐng)域具有重要的應(yīng)用前景，如新型波導(dǎo)與濾波器、隱身結(jié)構(gòu)以及減振降噪裝置等。本報(bào)告將介紹力學(xué)超材料的一些波動(dòng)特性，簡述其基本原理，進(jìn)而討論當(dāng)前本領(lǐng)域的研究進(jìn)展。
【相關(guān)學(xué)科】力學(xué)、機(jī)械、熱能、土木
【主辦單位】校工會(huì)、圖書館、科研院、校青年教師聯(lián)誼會(huì)
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.