Vibration damping characterization of linseed oil‐based elastomers for its effectiveness to attenuate structural vibration. Issue 5 (26th June 2013)

• Record Type: Journal Article
• Authors: Das, Rakesh; Kumar, Rajesh; Kundu, Patit P.
• Is Part Of: Journal of applied polymer science. Volume 130:Issue 5(2013:Dec. 05)
• Page Start: 3611
• Page End: 3623
• Publication Date: 2013-06-26
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; 668.9
• DOI: 10.1002/app.39607
• Languages: English
• ISSNs: 0021-8995

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <p>Vibration damping properties of elastomers prepared from linseed oil were characterized by dynamic mechanical analyzer in a temperature range of −50 to 100°C and frequency range of 5 Hz to 1 kHz. The maximum damping loss factor, <alternatives><inline-graphic mimetype="image" xlink:href="ark:/27927/pgg36kvqdzb" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><mml:math display="inline" altimg="urn:x-wiley:00218995:media:app39607:app39607-math-0001" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mrow><mml:mo stretchy="true">(</mml:mo><mml:mi>tan</mml:mi><mml:mo>⁡</mml:mo><mml:mtext>δ</mml:mtext><mml:mo stretchy="true">)</mml:mo></mml:mrow><mml:mrow><mml:mi>max</mml:mi><mml:mo>⁡</mml:mo></mml:mrow></mml:msub></mml:mrow></mml:math></alternatives> varies from 0.78 to 1.32, the room temperature (25°C) loss factor, <alternatives><inline-graphic mimetype="image" xlink:href="ark:/27927/pgg36kvqdvp" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><mml:math display="inline" altimg="urn:x-wiley:00218995:media:app39607:app39607-math-0002" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mrow><mml:mo stretchy="true">(</mml:mo><mml:mi>tan</mml:mi><mml:mo>⁡</mml:mo><mml:mtext>δ</mml:mtext><mml:mo stretchy="true">)</mml:mo></mml:mrow><mml:mrow><mml:mtext>rt </mml:mtext></mml:mrow></mml:msub></mml:mrow></mml:math></alternatives> in the range of 0.56–1.08 and the temperature range ( <alternatives><inline-graphic mimetype="image" xlink:href="ark:/27927/pgg36kvqdsk" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><mml:math display="inline" altimg="urn:x-wiley:00218995:media:app39607:app39607-math-0003" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Δ</mml:mi><mml:mi>T</mml:mi></mml:mrow></mml:math></alternatives>) for effective damping <alternatives><inline-graphic mimetype="image" xlink:href="ark:/27927/pgg36kvqdpx" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /><mml:math display="inline" altimg="urn:x-wiley:00218995:media:app39607:app39607-math-0004" overflow="scroll" xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mo stretchy="true">(</mml:mo><mml:mi>tan</mml:mi><mml:mo>⁡</mml:mo><mml:mtext>δ</mml:mtext><mml:mo>≥</mml:mo><mml:mn>0.3</mml:mn><mml:mo stretchy="true">)</mml:mo></mml:mrow></mml:math></alternatives> varies from 63°C to 74.4°C in different elastomers. The elastomers behave as a good vibration damper both in lower and higher frequency range. Thus these elastomers exhibit good damping behavior in a wide range of temperature and frequency, a primary requirement for practical damping applications. A modal constrained layer damping system constructed utilizing these elastomers exhibits its potentiality to attenuate structural vibrations with respect to mild steel bare plate resonator under laboratory fabricated testing methodology. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 3611–3623, 2013</p> </abstract>