Plenary Lecture

Non-linear Analysis of the Automotive Suspensions with
neo-Hookean Elements

Professor Nicolae-Doru Stanescu
University of Pitesti
Faculty of Mechanics and Technology
Department of Applied Mechanics
Pitesti, str. Targul din Vale, nr. 1, jud. Arges, code 110040
Romania
E-mail: s_doru@yahoo.com

Abstract: In this work we present two systems with non-linear neo-Hookean components. In such systems there always exists an element with a non-linear characteristic equation. This element can be considered to be a rubber or another equivalent structure. We shall prove that the utilization of a neo-Hookean element will not destroy the properties of the structure, but it riches these properties and it could be a good solution in many cases. The first model describes a quarter of an automobile and the second one is dedicated to a half-automobile model. We obtain the equilibrium positions, study their stability in the most general case and for the first model we also discuss the stability of the motion. In the paper there are also numerical applications.

Brief Biography of the Speaker:
Nicolae-Doru Stanescu (born 1965) graduated the Faculty of Machines Construction’s Technology at the “Politehnica” University of Bucharest in 1989, and the Faculty of Mathematics and Computer Science at the University of Pitesti in 1995. Since 2003 he is PhD in Mechanical Engineering at the University of Pitesti, and since 2008 he is PhD in Mathematics at the University of Bucharest. Now, he is Associate Professor at the Department of Applied Mechanics of the University of Pitesti, where he teaches Mechanics, Numerical Methods and Non-linear Vibrations. He wrote more than 100 articles and 6 books. He participated as researcher or was director at 8 grants. He is member of the International Institute of Accoustic and Vibration in USA, and of Societe des Ingineurs de l’Automobile, France, among other associations. He was invited professor at Instituto Superior Tecnico, Lisbon, Portugal. His fields of interests are: non-linear vibrations, dynamical systems, stability, chaos, and numerical analysis.