Passive Viscoelastic Constrained Layer Damping Technolgy for Structural Application

The intention behind this study is to foresee damping effects using method of passive viscoelastic constrained layer damping. Beams are modeled for passive viscoelastic damping to predict damping effects in constrained layer sandwich cantilever beam. Passive damping treatment is widely used for structural application in many industries like automobiles, aerospace, etc. In this method of damping a simple cantilever beam is treated by making sandwich structure to make the beam damp, and this is done by using viscoelastic material as a core to ensure the damping effect. For past few years, viscoelastic materials has been significantly identified as the best damping material for damping application which are usually polymers. Here viscoelastic materials have been used as a core for making sandwich beam to ensure damping effect. Due to complex properties of viscoelastic materials, its modeling has been the matter of talk. So in this modeling of viscoelastic materials has been shown. The experimental results show how the amplitude decreases with time for damped system compared to undamped system and further it has been extended to finite element analysis with various damping material.