Dr. Stefano Mariani Dipartimento di Ingegneria Civile e Ambientale Politecnico di Milano Piazza L. da Vinci 32, 20133 Milano, Italy
Prof. Maurizio Porfiri Department of Mechanical and Aerospace Engineering Tandon School of Engineering, New York University Six MetroTech Center, Brooklyn, NY 11201, USA
Title:Multiphysics Modeling Ionic Polymer Metal Composites, with Application in Underwater Sensing Abstract: Ionic polymer metal composites (IPMCs) are a novel class of soft active materials that are receiving considerable attention as sensors and actuators.For instance, IPMCs have found application in biomimetic actuators for underwater propulsion and manipulation. Moreover, they have been utilized as flow, touch, and force sensors and have been integrated in several fluid energy harvesting devices. IPMCs have been shown to produce large mechanical deformations in response to a modest voltage applied across their electrodes, and, conversely, to generate a measurable voltage across their electrodes when subjected to an imposed mechanical deformation. In this talk, we present a novel physics-based modeling approach developed to describe the chemoelectromechanical behavior of IPMCs and, especially, resolve the complex interface phenomena taking place in the vicinity of the electrodes. The chemoelectromechanical constitutive behavior is obtained from a Helmholtz free energy density, which accounts for mechanical stretching, ion mixing, and electric polarization. Structural modeling and perturbation theory are leveraged to establish tractable reduced order models. We focus on sensing and present a few case studies spanning base excitation, impulsive loading from an impinging vortex ring, and impact on the free surface of a quiescent fluid. Analytical insight on the mechanics of the coupled fluid-structure problem is used to interpret experimental results and provide design guidelines for sensors based on active compliant materials in fluids.
Bio: Maurizio Porfiri is a Professor in the Department of Mechanical and Aerospace Engineering at New York University Tandon School of Engineering. He received M.Sc. and Ph.D. degrees in Engineering Mechanics from Virginia Tech, in 2000 and 2006; a “Laurea” in Electrical Engineering (with honours) and a Ph.D. in Theoretical and Applied Mechanics from the University of Rome “La Sapienza” and the University of Toulon (dual degree program), in 2001 and 2005, respectively. He is engaged in conducting and supervising research on dynamical systems theory, multiphysics modeling, and underwater robotics. Maurizio Porfiri is the author of more than 200 journal publications and the recipient of the National Science Foundation CAREER award. He has been included in the “Brilliant 10” list of Popular Science in 2010 and his research featured in all the major media outlets, including CNN, NPR, Scientific American, and Discovery Channel. Other significant recognitions include invitations to the Frontiers of Engineering Symposium and the Japan-America Frontiers of Engineering Symposium organized by National Academy of Engineering; the Outstanding Young Alumnus award by the college of Engineering of Virginia Tech; the ASME Gary Anderson Early Achievement Award; the ASME DSCD Young Investigator Award; and the ASME C.D. Mote, Jr. Early Career Award.
Prof. Eleni Chatzi Institut für Baustatik und Konstruktion/Institute of Structural Engineering ETH Zürich, Stefano-Franscini-Platz 5 8093Zürich, Switzerland
Title: A Monitoring Based Approach for Smart Infrastructure Management
Bio: Eleni Chatzi received her PhD, with distinction, from the Department of Civil Engineering and Engineering Mechanics at Columbia University, New York in 2010. She then joined ETH Zürich in 2010 as the youngest Assistant Professor and Chair of Structural Mechanics in the Department of Civil, Environmental and Geomatic Engineering. Her research interests include the fields of structural health monitoring (SHM), nonlinear system identification, and life-cycle assessment for infrastructure systems. She is currently running a number of associated research projects including five Swiss National Science Foundation (SNSF), and two ETH Research Projects. She is a core group member of European COST Actions TU1406 and TU1402, which focus on quality specifications, standardization and monitoring or civil infrastructure systems. She has published numerous articles with particular focus on SHM and serves in the editorial board of a number of associated journals.
Prof. David A. Horsley Department of Mechanical and Aerospace Engineering University of California Davis Davis, CA 95616, USA
Prof. Dan Zhang Canada Research Chair in Advanced Robotics and Automation Faculty of Engineering and Applied Science University of Ontario Institute of Technology Oshawa, ON L1H 7K4, Canada
Title: Parallel Mechanisms and Its Application for Force/Torque Sensors Abstract: There has been increasing in developing enviromentally-benign manufacturing technologies, robots, etc. This is considered a significant step in achieving sustainable development. Sustainability of a manufacturing system becomes critical technology that enables manufacturing companies to reduce production costs and improve their global competitiveness. System sustainability can be achieved by reconfiguration and decentralization, whose system configurations are evolved with the changes of design requirements and dynamic environment. In this talk, the rational of using parallel robotic machines for green and sustainable manufacturing is discussed and explained. A comparative study is carried out on some successful parallel robotic machines and conventional machine tools. Meanwhile, the latest research activities of parallel manipulators in the Laboratory of Robotics and Automation of York University are introduced, they are: parallel robotic machines, reconfigurable/green robotic manipulators, web-based remote manipulation as well as the applications of parallel manipulators in micro-motion device, MEMS (parallel robot based sensors), wearable power assist hip exoskeleton, and rescue robot.
Bio: Dr. Dan Zhang is a Kaneff Professor in Advanced Robotics and Mechatronics in the Department of Mechanical Engineering of the Lassonde School of Engineering at York University. From July 1st 2004 to December 31 2015, Dr. Zhang was a Professor and Canada Research Chair in Advanced Robotics and Automation, was a founding Chair of the Department of Automotive, Mechanical, and Manufacturing Engineering with the Faculty of Engineering & Applied Science at University of Ontario Institute of Technology. He received his Ph.D. in Mechanical Engineering from Laval University, Canada, in June 2000. Dr. Zhang's research interests include robotics and mechatronics; high performance parallel robotic machine development; sustainable/green manufacturing systems; micro/nano manipulation and MEMS devices (sensors), micro mobile robots and control of multi-robot cooperation, intelligent servo control system for the MEMS based high-performance micro-robot; web-based remote manipulation; rehabilitation robot and rescue robot.