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講壇題目：利用非線性和能量局部化提升智能系統(tǒng)性能設(shè)計(jì)策略

主講人：Najib Kacem 教授

講座時(shí)間：2024年4月20日15:00-16:30

講座地點(diǎn)：工2-310

主辦單位：研究生院

承辦單位：機(jī)電工程學(xué)院

報(bào)告摘要：

Even though the introduction of periodic structures was mostly motivated by structural strength and weight requirements, recent studies have shown how the periodicity and/or nonlinearity can be exploited to attenuate, isolate and localize vibrations. Thus, design of periodic structures permits to develop smart systems dedicated to vibration and acoustic passive and active control, sensing applications, improvement of the vibroacoustic performances and the enhancement of energy transport. In this talk, I will try to show how my research activities contributed in the development and validation of methodologies and tools for the design of smart structures based on the functionalization of nonlinearity and/or periodicity or quasi-periodicity. Several concepts have been proposed and exploited in order to enhance the performances of resonant MEMS and NEMS sensors, Vibration Energy Harvesters (VEHs) and Capacitive Micromachined Ultrasonic Transducers (CMUTs).

個(gè)人簡(jiǎn)介：

Najib Kacem，PhD, Professor, Institute of Applied Mechanics, FEMTO-ST Institute, CNRS, France. Professor Najib Kacem is a world-renowned scholar in the field of nonlinear, he has made outstanding achievements in the fields of micro and nano electromechanical systems, nonlinear dynamics and energy harvesting systems, has published more than 100 high-level academic papers, holds ten French patents, and organized several internationally renowned conferences, which has been widely recognized by international peers.