Authors: V G Geethamma R Asaletha Nandakumar Kalarikkal Sabu Thomas
Publish Date: 2014/10/09
Volume: 19, Issue: 9, Pages: 821-833
Abstract
Excessive vibrations or loud sounds cause deafness or reduced efficiency of people wastage of energy and fatigue failure of machines/structures Hence unwanted vibrations need to be dampened This article describes the transmission of vibrations/sound through different materials such as metals and polymers Viscoelasticity and glass transition are two important factors which influence the vibration damping of polymers Among polymers rubbers exhibit greater damping capability compared to plastics Rubbers reduce vibration and sound whereas metals radiate sound The damping property of rubbers is utilized in products like vibration damper shock absorber bridge bearing seismic absorber etcNandakumar Kalarikkal is at the Mahatma Gandhi University Kerala His research interests include nonlinear optics synthesis characterization and applications of nanomultiferroics nanosemiconductors nanocomposites nanophosphors and nanosensors
Keywords: