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, etc.
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V G Geethamma is at the Mahatma Gandhi University, Kerala. Her research interests include plastics and rubber composites, and soft lithograpy.
R Asaletha is at the Cochin University of Science and Technology. Her research topic is NR/PS blend-compatibilization studies.
Nandakumar Kalarikkal is at the Mahatma Gandhi University, Kerala. His research interests include nonlinear optics, synthesis, characterization and applications of nano-multiferroics, nano-semiconductors, nanocomposites, nanophosphors and nanosensors.
Sabu Thomas is at the Mahatma Gandhi University, Kerala. His research interests include nanosystems, polymer composites, polymer blends, interpenetrating networks, diffusion through polymeric systems.
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Geethamma, V.G., Asaletha, R., Kalarikkal, N. et al. Vibration and sound damping in polymers. Reson 19, 821–833 (2014). https://doi.org/10.1007/s12045-014-0091-1
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DOI: https://doi.org/10.1007/s12045-014-0091-1