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Nonlinear Dynamics for Engineering Design

Release time:July 26, 2019

Topic: Nonlinear Dynamics for Engineering Design

Speaker: Professor Marian Wiercigroch, University of Aberdeen, UK

Time: 10:00 AM, July 29

Venue: C708, New Main Building

Abstract:

In this lecture he will paint a broad picture of the nonlinear world and examine implications of this view on science and engineering. Through carefully chosen examples from everyday life, science and engineering he will show just how nonlinear and dynamic our world really is. In the first part, he will define nonlinearity and nonlinear dynamics. Specifically, he will focus on a class called non-smooth dynamical systems. Then he will show how such problems can be effectively modelled and analysed by low dimensional dynamical systems. The generic complexity of non-smooth dynamics will be demonstrated by an elastic impact oscillator – an archetypal model for the high frequency vibro-impact drilling. The second part will be devoted to what we might call Nonlinear Dynamics for Engineering Design where he will present results from his recent projects, where nonlinear dynamic interactions have been used to enhance the performance of real systems and structures. he will put a special emphasis on one large project from oil and gas industry, where they have developed a revolutionary downhole drilling technology and unique drilling laboratory. He will argue that this would not be possible in a linear and static world!

Biography of the Speaker:

Professor Marian Wiercigroch educated in Poland, US and UK holds a Sixth Century Chair and he is a founding director of the Centre for Applied Dynamics Research at the University of Aberdeen. His area of research is theoretical and experimental nonlinear dynamics, which he applies to various engineering problems. Wiercigroch has published extensively (over 350 journal and conference papers) and sits on a dozen editorial boards of peer review journals. He is a joint Editor-In-Chief of International Journal of Mechanical Sciences and a frequent keynote and plenary speaker at major international conferences. He is the inventor of new patented drilling technology called Resonance Enhanced Drilling and he has established in Aberdeen unique experimental laboratories allowing to investigate complex nonlinear dynamic interactions in mechanical systems with the focus on energy generation. He has received many awards and distinctions including a Senior Fulbright Scholarship (1994), Fellowship of the Royal Society of Edinburgh (2009), DSc honoris causa by the Lodz University of Technology (2013) and Honorary Professorships at the Harbin institute of Technology (2010) and Perm National Research Polytechnic University (2017).



School of Aeronautic Science and Engineering