报告题目: Nonlinear Dynamics of Smart Systems and Structures
报告人: Marcelo Savi, Federal University of Rio de Janeiro, Brazil，教授，博导
报告时间: 22:10-23:00, 27th August 2020.
报告地点: 889 9240 5158 (Zoom ID)
Abstract:
Bioinspiration is a paradigm that extracts design principles from biological and natural systems. Based on that, it is possible to create systems and structures with adaptive behavior according to its environment. Smart materials have an essential importance on this idea being used as sensors and actuators that define the remarkable system characteristics. Besides this, natural rhythms are inspiring new situations and therefore, the investigation of nonlinear dynamics, chaos and control is establishing other design paradigms. The use of bioinspired smart systems is now evolving to create origami systems based on the ancient Japanese art of paper folding. Basically, the main idea of the origami is to create a three dimensional structure from a plane source. Adaptive origamis have been explored in order to produce foldable, adaptive structures that can be applied in several areas of the human knowledge. This presentation deals with nonlinear mechanics related to smart bioinspired systems. Initially, some smart material system applications and their thermomechanical behaviors are discussed. System modeling is also presented showing interesting behaviors for potential applications. In the sequence, nonlinear dynamics of smart material systems and structures are discussed. Shape memory alloy systems, origamis, vibration-based energy harvesting, chaos and chaos control are some subjects presented as examples of this kind of systems. The rich, complex dynamical response of these systems is of special concern.
简介:
Marcelo A. Savi is Ph.D. in Mechanical Engineering and Professor at Federal University of Rio de Janeiro (COPPE - Department of Mechanical Engineering) where develops research and teaching activities, being the Head of the Center for Nonlinear Mechanics. He has published over 400 journal and conference papers, 5 books and about 15 book chapters. Several awards and distinctions were received including: COPPE Award Giulio Massarani of the Academic Merit; CAPES Award for the advisor of the best PhD Thesis; CNPq Researcher level 1A; Scientist of Rio de Janeiro. He is actively involved as advisor of graduate and undergraduate students, summing more than 150 works. Scientific exchanges with research centers in Brazil and all over the world should be highlighted. He has administrative experience as head of department, graduate coordinator, and university committees. He is the principal investigator of several research projects sponsored by the main Brazilian agencies (CNPq, CAPES, FAPERJ), international agencies (NSF, AFOSR), and industrial partners. He is participating in committees all over the world, summing over 200 committees of public exams, PhD, MSc and undergrad. Besides, he actuates as consultant for research agencies. He serves as Associate Editor of some journals, where it is important to highlight: ASME – Journal of Computational and Nonlinear Dynamics (2019-present), International Journal of Mechanical Sciences (2018- present), Journal of Vibration and Control (2017-present), Mathematical Problems in Engineering (2018-present), Journal of the Brazilian Society of Mechanical Sciences and Engineering (2006-2016), Journal of Applied Mathematics (2012-2014) and Open Journal of Acoustics (2007-2013). He is member of academic societies including ASME and ABCM, where participates of the Committee of Dynamics; Smart Materials and Structures; and Nonlinear Phenomena and Chaos. Research interests are related to nonlinear mechanics where it should be highlighted smart material and structures; nonlinear dynamics, chaos and control; biomechanics and ecology.
HONORS AND AWARDS
Scientist of the Rio de Janeiro - 2018
Scientist of the Rio de Janeiro - 2015
COPPE Giulio Massarani Academic Merit Award - 2014
Scientist of the Rio de Janeiro - 2012
CAPES Award to be the advisor of the best PhD Thesis - 2010
Fellow, Brazilian Society of Mechanical Sciences and Engineering.
Scientist of the Rio de Janeiro - 2009
Scientist of the Rio de Janeiro - 2007
