學(xué)術(shù)報(bào)告

　　鄒鴻生教授，英國(guó)皇家學(xué)會(huì)工藝院(RSA)院士，美國(guó)機(jī)械工程師學(xué)會(huì)(ASME) Fellow，美國(guó)University of Kentucky機(jī)械系、南京航空航天大學(xué)榮譽(yù)教授，航空航天交叉研究院院長(zhǎng)，美國(guó)普渡大學(xué)（Purdue University）機(jī)械工程博士等。是國(guó)際智能結(jié)構(gòu)與結(jié)構(gòu)電子系統(tǒng)領(lǐng)域的創(chuàng)始人之一，提出智能結(jié)構(gòu)及結(jié)構(gòu)電子(StrucTronics)系統(tǒng)概念，建立壓電、撓電、光電、電致、磁致、光控形狀記憶等智能板殼結(jié)構(gòu)傳感/控制/能量采集理論，應(yīng)用于航空、航天、汽車(chē)、醫(yī)療、能源、機(jī)械等元件及系統(tǒng)設(shè)計(jì)，解決實(shí)際工程問(wèn)題。發(fā)表學(xué)術(shù)論文/章節(jié)近600篇，出版學(xué)術(shù)專(zhuān)著10部，其中《Piezoelectric Shells (Sensing, Energy Harvesting and Distributed Control)》已成為領(lǐng)域內(nèi)權(quán)威著作。曾任ASME Board on Technical Knowledge Dissemination理事會(huì)長(zhǎng)，Interdisciplinary Councils Committee主席、ASME國(guó)際設(shè)計(jì)技術(shù)及工程計(jì)算大會(huì)（IDETC/CIE2007）總主席、21屆振動(dòng)及噪聲大會(huì)主席、Mechanical Systems and Signal Processing創(chuàng)刊編委等。現(xiàn)任ASME結(jié)構(gòu)與系統(tǒng)動(dòng)力及控制技術(shù)委員會(huì)（DCSS）終身會(huì)員、《國(guó)際航空航天科學(xué)》主編、ICAST IOC委員等。獲得六次最佳論文獎(jiǎng)，六次ASME杰出領(lǐng)導(dǎo)及服務(wù)獎(jiǎng)，叁次 NASA新技術(shù)發(fā)明獎(jiǎng)并取得多項(xiàng)專(zhuān)利，榮獲2007、2021中國(guó)工程院外籍院士提名，入選ScholarGPS全球頂尖0.05%學(xué)者（其中Vibration Control全球第六、Piezoelectricity全球第十），Sandford/Elsvier全球2%頂尖科學(xué)家等。

　　Light-driven smart materials offer non-contact wireless actuation and control immunized from acoustic, electrical and magnetic disturbances. This report introduces two photdeformation based actuations, i.e., a light-actuated shape memory polymer (LaSMP) and a hybrid photovoltaic/flexoelectric mechanism. Under ultraviolet (UV) light illuminations, LaSMP Young's modulus changes and the shape can be restored when UV removed. The LaSMP’s dynamic stiffness and shape memory characteristics can be applied to the vibration control of structures. Vibration controls of beam/ring/shell structures with the phase-shift and neural-network algorithms are studied and their control effectiveness evaluated. Next, a novel hybrid photovoltaic/flexoelectric actuation mechanism combines a photovoltaic generator and a flexoelectric actuator. Spatial-time distributions of the photo-flexoelectric induced control moments are calculated. Static deflection control and dynamic vibration control of cantilever beams are investigated, and independent modal control effects are evaluated. Control effects by the Lyapunov control are better than those via the proportional feedback and velocity feedback controls. The customization of modal control forces can be realized via a non-contact strategy by adjusting the light intensity and pre-illumination time. Design issues related to the optimal position of AFM probe and actuator size are also addressed.