Abstract: This paper presents the identification and evaluation of the operational methods to improve the isolation characteristics for neoprene passive vibroisolation devices. The area of this study is framed by the passive isolation against shocks and vibration, due to the different technological equipments, of the sensitive embedded systems. The study is based on the large sets of virtual and instrumental tests, performed on different types of vibroisolation devices, with various structural and functional configurations. All of these was developed supposing the basic compressing and torsion rubber elastic elements, their working principle, and their functional restraints. Through the comparative analysis of the acquired results, it was fixed some final structural configurations. It is also present a few theoretical and operational aspects regarding the base isolation technique, which frame the basis of using of these vibroisolation devices. The main concluding remark denotes the way to use simple neoprene elastic elements, mounted on a lever structural and spatial configuration, to obtain a high global level of dynamic isolation.

Brief Biography of the Speaker:
Silviu Nastac (born in 1971) received the PhD degree in Mechanical Engineering from University "Dunarea de Jos" of Galati, Romania, in 2006. He obtained a Master degree's in Computational Mechanics in 1997 and in Mechanics of Deformable Solids in 2004, at the same University. Since 1997 he is a senior research scientist at the Research Center for Mechanics of Machines and Technological Equipments, at Engineering Faculty of Braila, University "Dunarea de Jos" of Galati, Romania. He is the winner of the prize AROTEM of Romanian Association for Construction Technologies, Equipments and Mechanization in 2006. His main research topics include the theory of mechanics, dynamics, vibrations, acoustics, modelling and simulation of dynamic phenomenon, and virtual instrumentation. His work has been published in several journals and books among which we can mention the contribution Performances Evaluation at Damaged Vibration Isolation Devices, Chapter 47 in DAAAM International Scientific Book 2008, pp.551-564, B. Katalinic (Ed.), Published by DAAAM International, Vienna, Austria, the papers On Multipoint Spectral Analysis in Dynamic Sources Behaviour Identification and Evaluation, WSEAS Transactions on Systems, Issue 10, Volume 7, October 2008, pp.996-1005, Experimental and Theoretical Analysis of the Dynamic Behaviour of the Technological Equipment Foundation, NAUN International Journal of Mechanics, Issue 4, vol.1, 2007, pp.80-88, and the book Computational Engineering with Applications, Impuls Publishing House, Bucharest, 2004. He is a member of IIAV - International Institute of Acoustics and Vibration, SRA - Romanian Society of Acoustics, and SRMTA - Romanian Society for Theoretical and Applied Mechanics.