报告题目：Dynamical Integrity: a step after stability
报告人： Prof. Stefano Lenci (Architecture – Polytechnic University of Marche)
It is nowadays understood that, for engineering systems the stability of solution in classical (Lyapunov) sense is not enough for practical purposes, since the solution may have a basin of attractions very narrow and such that even small imperfections/disturbances may lead the system to another coexisting solution, commonly representing an engineering unwanted outcome for the system. It is not only a matter of smallness of basins of attraction, as the basin may be large but very fractal, with only a small compact part. The investigation of this topic, which consists of determining the robustness of the solution, or its "practical stability", is named dynamical integrity and entails investigating the properties of safe basin. It is the object of this presentation.
Dr. Stefano Lenci is a professor at the Department of Civil and Building Engineering, and Architecture – Polytechnic University of Marche. He got his Ph.D in University of Florence in 1997, completed his Post-doct in University Pierre et Marie Curie (Paris 6) from 1998 to 2000. He had been the Head of the Department of Civil and Building Engineering, and Architecture, UNIVPM, from 2011 to 2015, and the Head of the Ph.D. program in Civil, Environmental and Building Engineering, UNIVPM, from 2015 to 2018.
Prof. Lenci's research interest includes nonlinear dynamics of engineering systems, and he has published more than 160 journal papers. He has/had been an Associate Editor of a number of journals including ASME J. Computational and Nonlinear Dynamics, Meccanica, Nonlinear Dynamics, and ASME J. Vibration and Acoustics, as well as the Guest Editor of a number of Journal Special Issues. Since 2018, Prof. Lenci has been the President of the Italian Association for Theoretical and Applied Mechanics (Aimeta).