Damping ratios of pristine composite beam and constrained layer damped composite beam of equal stiffness

Constrained layer damping is one of the passive techniques to control amplitude of vibration of structural components. In the present work an attempt has been made to quantify and compare damping ratios of composite-rubber-composite sandwich beam with that of pristine composite beam having nearly th...

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Bibliographic Details
Published inInternational journal of precision engineering and manufacturing Vol. 14; no. 9; pp. 1655 - 1660
Main Authors Chennamsetti, Ramadas, Hood, Avinash, Guruprasad, Siddlingappa, Roy, Sajal, Joshi, Makarand
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2013
Subjects
Engineering
Industrial and Production Engineering
Materials Science
Constrained layer damping
Composite-rubber-composite
Flexural stiffness
Damping ratio
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Summary:Constrained layer damping is one of the passive techniques to control amplitude of vibration of structural components. In the present work an attempt has been made to quantify and compare damping ratios of composite-rubber-composite sandwich beam with that of pristine composite beam having nearly the same flexural stiffness and range of frequency of vibration from 20 Hz to 100 Hz. Length and thickness of sandwich and pristine beams in order to have the same flexural stiffness and desired frequency range of vibration were specifically designed. The damping ratio of each sandwich and pristine composite beams were measured experimentally using logarithmic decay and half-power bandwidth techniques.
ISSN:2234-7593
2005-4602
DOI:10.1007/s12541-013-0224-6