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Vibration Damping Characterization of Linseed oil based Elastomers for its Effectiveness to Attenuate Structural Vibration

Journal of Applied Polymer Science (Impact Factor: 1.4). 06/2013; DOI: 10.1002/app.39607

ABSTRACT Vibration damping properties of elastomers prepared from linseed oil were characterized by Dynamic mechanical analyzer (DMA) in a temperature range of -50 to 100 oC and frequency range of 5Hz to 1 kHz. The maximum damping loss factor, varies from 0.78 to 1.32, the room temperature (25 oC) loss factor, in the range of 0.56 to 1.08 and the temperature range ( ) for effective damping ( 0.3) varies from 63 oC to 74.4 oC in different elastomers. The elastomers behave as a good vibration damper both in lower and higher frequency range. Thus these elastomers exhibit good damping behaviour in a wide range of temperature and frequency, a primary requirement for practical damping applications. A modal constrained layer damping system (CLD) constructed utilizing these elastomers exhibits its potentiality to attenuate structural vibrations with respect to mild steel bare plate resonator under laboratory fabricated testing methodology.

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May 31, 2014