Energy Harvesting from Vibration and Human Motion
讲座名称：
Energy Harvesting from Vibration and Human Motion
讲座时间：
2017-06-12
讲座人：
廖维新
形式：
校区：
兴庆校区
实践学分：
讲座内容：
报告题目：Energy Harvesting from Vibration and Human Motion
报告时间：2017年6月12日（星期一）上午10:00-11:00
报告地点：曲江校区西五楼A420会议室
报告学者：香港中文大学 ASME Fellow 廖维新教授
报告摘要:
Most of the ambient energy, which was regarded useless in the past, now is under the spotlight. With the rapid developments on low power electronics, future personal mobile devices and remote sensing systems might become self-powered by scavenging energy from their surroundings. Kinetic energy is one of the promising energy forms in our living environment, e.g., human motion and vibration. We have proposed an energy flow to clarify the functions of piezoelectric energy harvesting, dissipation, and their effects on the structural damping of vibrating structures. Impedance modeling and analysis were performed. We have designed an improved self-powered switching interface for piezoelectric energy harvesting circuits. With electromagnetic transduction, we also proposed a knee-mounted energy harvester that could convert the mechanical power from knee joints into electricity during walking. On the other hand, we have developed magnetorheological (MR) fluid devices with multiple functions, including linear dampers and rotary actuators. Novel self-sensing MR dampers with power generation, which integrate the dynamic sensing, MR damping and power generation functions, were proposed and investigated. In addition, multifunctional rotary actuator was also designed to integrate motor/generator part and MR fluids into a single device. The actuator could function as motor, generator, clutch and brake, with compact size and less power consumption. The developed actuators were promising for various applications. In this talk, related research and key results will be presented.
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