题目：Small-scale Energy Harvesting
摘要：Small-scale energy harvesting for powering wireless sensor nodes and portable electronic devices has received intense research focus over the years. This talk presents comprehensive research work carried out in Nanyang Technological University, Singapore, on vibration and wind energy harvesting using piezoelectric materials. Various aspects of piezoelectric energy harvesting will be discussed, including its origination, linear and nonlinear harvester design topologies, analytical, finite element and equivalent circuit modelling approaches, experimental validations, harvesting circuits, various efficiency enhancement techniques, structural integrity and fatigue issues. The pros and cons of piezoelectric energy harvesting, practical applications and challenges will also be discussed.
报告人简介：Dr. Yaowen YANG is currently an Associate Professor and Associate Chair in the School of Civil and Environmental Engineering, and Deputy Director of the Protective Technology Research Centre, Nanyang Technological University (NTU), Singapore. He is one of the lead researchers in area of small energy harvesting and structural health monitoring. His research interests include smart materials and structures for energy harvesting, structural health monitoring and uncertainty analysis in structural dynamics. Over the years, Dr Yang has received more than $6M (Singapore dollars) research fund from funding agencies and industry, and published 1 book, 3 monographs and over 200 journal and conference papers, among which 92 are SCI journal publications. His publications have received more than 2000 citations with an H-index of 26 in Web of Science, over 2700 citations with an H-index of 28 in Scopus, and over 4000 citations with an H-index of 32 in Google Scholar. Dr Yang has graduated 12 PhD students and supervised 10 Postdocs. Dr Yang received his B.Eng and M.Eng from Shanghai Jiao Tong University and Ph.D from Nanyang Technological University. He serves as an editorial board member for multiple international journals and delivered keynote and invited lectures in many international conferences.
题目：High-efficiency Vibration Energy Harvesting for Sensor Applications
摘要：Vibration energy harvesting holds a great potential to achieve long-lifespan self-powered operations of wireless sensor networks, wearable devices and medical implants, and thus has attracted substantial interest from both academia and industry. The piezoelectric effect or electromagnetic induction has been widely adopted to convert mechanical energy to electrical energy, duo to its high energy conversion efficiency, ease of implementation and miniaturization. From the viewpoint of applications, we are most concerned about whether an energy harvester can generate sufficient power under a variable excitation. This talk systematically discusses high-efficiency vibration energy harvesting for sensor applications.
报告人简介：Dr. Zhengbao YANG is an Assistant Professor in the Department of Mechanical and Biomedical Engineering at the City University of Hong Kong. Prior to joining the MBE department at CityU, Dr. Yang was a research fellow jointly appointed by the University of Toronto and Magna Inc. He received his BEng in Mechatronics from the Harbin Institute of Technology in 2012, and PhD in Mechanical Engineering from the University of Toronto in 2016. Dr. Yang’s research interests are vibrations and mechatronics with a special focus on the development of smart structures and dynamical systems for energy harvesters, actuators and sensor systems.