21Jun 2017

NATURAL RUBBER BASED HYBRID NANOCOMPOSITE VIBRATION DAMPERS.

  • MMAN Technical Campus, Malegaon, (M.S.), India.
  • Sant Gajanan College of Engineering, Kolhapur (M.S.), India.
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In this study a novel natural rubber (NR) nanocomposite (Patent pending with IPC, India, File No. 1623/Mum/2014) is prepared by doping Al2O3-ZrO2 nanocomposite particles in NR matrix and characterized for the vibration damping properties. Nanocomposite rubber compounding ingredients, mixing procedure and curing parameters are clearly mentioned. The concentration of nanoparticles varies from 0-15 phr (NP-0 to NP-15) of matrix NR. The cross-linking, surface morphology and dispersion of nanofillers in NR matrix can be clearly observed in SEM images. The performance of nanocomposite NR under impulsive excitation is assessed based on an experimental and numerical simulation approach, for frequency-domain and time-domain analysis. Nanocomposite NR is modeled as uniform beam with simply supported end conditions and transfer function in Laplace domain is derived. Frequency response, phase and root locus characteristics are plotted for theoretical modeling and validation of experimental results. The displacement amplitude attenuation, natural frequency, rise time and settling time all parameters are found to be a function of nanofiller concentration. The microstructural causes of energy dissipation in nanocomposite elastomer are discussed in detail. All parameters determined theoretically and experimentally, are in close agreement mutually and also with other researcher?s results, which indicate that the new kind of nanocomposite NR is expected to be an effective damping material.

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[Ramzan Muhammad and Bimlesh Kumar. (2017); NATURAL RUBBER BASED HYBRID NANOCOMPOSITE VIBRATION DAMPERS. Int. J. of Adv. Res. 5 (Jun). 1314-1323] (ISSN 2320-5407). www.journalijar.com

Ramzan Muhammad
3158, Lane No.1, Akbar Chawk, Behind Dr Kabre Hospital, Dhule-424001 (M.S.), India

DOI:

Article DOI: 10.21474/IJAR01/4542      
DOI URL: http://dx.doi.org/10.21474/IJAR01/4542

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