Analysis of Performance of FLD and CLD Technique

Vibration is undesirable, wasting energy and creating unwanted sound ? noise. Sometimes these vibrations cause minor or serious performance or safety problems in engineered systems. Damping is one potential approach to reducing vibration level, in a structural system. Viscoelastic material among the damping materials is widely used to reduce the structural vibration. This paper describes theanalysis of performance of free layer damping treatment and constrain layer damping treatment to attenuate vibration response amplitude. Measurements are performed on Oberst beam as per ASTM E 756-05 standard.[1] This detailed experimental program that was undertaken to characterize the damping loss factor of Styrene-Butadiene (SBR) as a composite materials.The FLD and CLD treatments are compared and analyzed in this paper.