报告题目：The X-Structure/Mechanism Approach to Beneficial Nonlinear Design in Engineering

报告人：Prof. Xingjian Jing 香港城市大学教授

主持人：刘绍华

时间：2023年4月7日（周五）10：00

地点：教四楼422

报告摘要:

Nonlinearity can take an important and critical role in engineering systems and thus cannot be simply ignored in structural design, dynamic response analysis, and parameter selection. A key issue is how to analyze and design potential nonlinearities introduced to or inherent in a system of under study, which is greatly demanded in many practical applications involving vibration control, energy harvesting, sensor systems and robots etc. This talk will present an up-to-date review on a cutting-edge method for manipulation and employment of nonlinearity in engineering systems developed in recent years, named as the X-structure or mechanism approach. The method is inspired from animal leg/limb skeletons and can provide passive low-cost high-efficiency adjustable and beneficial nonlinear stiffness (high static & ultra-low dynamic), nonlinear damping (dependent on resonant frequency and vibration excitation amplitude) and nonlinear inertia (low static & high dynamic) individually or simultaneously. The X-shaped structure or mechanism is a generic and considerably simple structure or mechanism representing a class of beneficial geometric nonlinearity with realizable and flexible linkage mechanism or structural design of different variants or forms (quadrilateral, diamond, polygon, K/Z/S/V-shape, or others) which all share similar geometric nonlinearity and thus similar nonlinear stiffness/damping properties, flexible in design and easy to implement. This talk systematically reviews the research background & motivation, essential bio-inspired ideas, advantages of this novel method, beneficial nonlinear properties in stiffness, damping and inertia, and potential applications, and ends with some remarks and conclusions.

专家简介：

Xingjian Jing (M’13, SM’17) received the B.S. degree from Zhejiang University, China, the M.S. degree and PhD degree in Robotics from Shenyang Institute of Automation, Chinese Academy of Sciences, respectively. He also achieved the PhD degree in nonlinear systems and signal processing from University of Sheffield, U.K..

He is now a Professor with the Department of Mechanical Engineering, City University of Hong Kong. Before joining in CityU, he was a Research Fellow with the Institute of Sound and Vibration Research, University of Southampton, followed by assistant professor and associate professor with Hong Kong Polytechnic University. His current research interests include: Nonlinear dynamics, Vibration, Control and Robotics, with a series of 200+ publications of 9100+ citations and H-index 50 (in Google Scholar), with a number of patents filed in China and US. He is one of the top 2% highly cited world scientists and a senior IEEE member.

Prof Jing is the recipient of a number of academic and professional awards including 2016 IEEE SMC Andrew P. Sage Best Transactions Paper Award, 2017 TechConnect World Innovation Award in US, 2017 EASD Senior Research Prize in Europe, 2017 the First Prize of HK Construction Industry Council Innovation Award, and 2019 HKIE outstand paper award etc.

He currently serves Associate Editors of Mechanical Systems and Signal Processing, IEEE Transactions on Industrial Electronics, & IEEE Transactions on Systems, Man, Cybernetics -Systems, and served as Technical Editor of IEEE/ASME Trans. on Mechatronics during 2015-2020. He was the lead editor of a special issue on “Exploring nonlinear benefits in engineering” published in Mechanical Systems and Signal Processing during 2017-2018 and is the lead editor of the other special issue on “Next-generation vibration control exploiting nonlinearities” published in MSSP during 2021-2022.

景興建，博士，香港城市大學机械工程系教授。分别获浙江大学学士、中科院自动化所硕士和博士(机器人方向)学位，英国Sheffield大学(非线性方向)博士。主要研究领域：非线性系统分析、設計、信號處理、辨識及其在振動控制、能量採集、故障診斷、機器人，傳感器等方面的應用。發表文章200多篇，文章檢索9100 多次，H-index 50 (Google Scholar)，并有6-7篇SCI高被引文章，全球top2% 高被引學者之一，IEEE高級會員。任国际知名杂志IEEE Transactions on Systems, Man, Cybernetics -Systems, IEEE Trans on Industrial Electronics, Mechanical Systems and Signal Processing和IEEE/ASME Trans Mechatronics的副主编。并于2019年和2021年分別在MSSP上任专刊主编—“Exploring nonlinear benefits in engineering”。曾获得中科院刘永龄奖，中科院院长优秀奖，EPSRC-Hutchison Whampoa Dorothy Hodgkin Award，Highest International Consultancy Award，IEEE SMC best transaction paper award ，美國TechConnect全球技術創新獎，歐洲結構動力學協會Senior Research Prize，香港建築業議會建築技術創新一等獎，和香港工程师协会杰出论文奖等。研究工作得到香港RGC，国家自然科学基金，中海油技术服务有限公司，中国航天技术研究院，中國航天控股公司，Lord公司及其它香港廣州和國際公司的资助。

讲座报名：请扫描下方二维码进行讲座报名（可盖章）。