Abstract: | This issue is a part of the large study performed for analyse and validate the polygonal shape elastic isolation devices (PoSEID) dynamic behaviour. Initially, it was proposed a group of elastic isolation systems, with a complex configurations - with multistairs or polygonal functional structure. The analitical analysis, completed with the experimental laboratory tests, leads to the final variant of these isolation systems to a polygonal regular shape with six visco-elastic torsional rubber elements. The main part of analysis was dedicated for analysis of these devices, from the next points of view: static and dynamic stability, functional performances, vibration isolation degree. In this paper it was presented the analitical approach of the isolation degree calculus, for a system with three degree of freedom, that was insulated on a symmetrical PoSEID configuration. The conclusions of this study was performed arround the global isolation degree values, and leads to validate the utilization of these systems on large area of applications, supposing the sensitive equipments isolation against vibrations. Finally, it is necessary to mention the fact that these devices was analysed both with virtual prototyping techniques, and with real lab experimental tests. This complex approach help to evaluate the disturbances on the designing and leads to obtaine the usable functional configuration for a doable and reliable vibration isolation system. |
