News Updates Tuesday 22nd May 2018 :
  • Welcome to INPRESSCO, world's leading publishers, We have served more than 10000+ authors
  • Articles are invited in engineering, science, technology, management, industrial engg, biotechnology etc.
  • Paper submission last date of May/June 2018 extended to 26 May 2018, Submit online or at editor.ijcet@inpressco.com
  • Our journals are indexed in NAAS, University of Regensburg Germany, Google Scholar, Cross Ref etc.
  • DOI is given to all articles

Experimental Modal Frequency and Damping Estimation of Viscoelastic Material by Circle Fit Method


Author : Chandan K. V. and Patil A. P.

Pages : 2199-2204
Download PDF
Abstract

The main objective of the work is to estimate damping performance and shift in natural frequency due to coating of viscous-elastic material. The high performance damping material such as silicone, butyl rubber and Vinyl (PVC) are sandwiched with high stiffness materials like aluminum under constrained layer damping treatment. And synthetic rubber is sprayed and metallic hard chrome is electroplated on steel under the free layer damping treatment. The specimens are prepared according to ASTM standard E-756(05). The damping extends are measured by circle fit method in frequency domain by Impulse hammer test method and DEW-Soft Data Acquisition System. The results of empirical relations and experiments are compared. It is found that the butyl rubber and PVC has effective damping performance as compare to others and chrome has quite good strength without much compromise with damping.

Keywords: Modal frequency, VEM, Damping ratio, Circle-fit Method, Oberst Beam, Loss factor.

Article published in International Journal of Current Engineering and Technology, Vol.6, No.6 (Dec-2016)

Call for Papers
  1. IJCET- Mary/June 2018 Issue

    Submission Last Date extented to
    26 May
  2. DOI is given to all articles
  3. Current Issue
  4. IJTT-June-2018
  5. IJAIE-June-2018
  6. IJCSB-June-2018
  • Inpressco Google Scholar
  • Inpressco Science Central
  • Inpressco Global impact factor
  • Inpressco aap

International Press corporation is licensed under a Creative Commons Attribution-Non Commercial NoDerivs 3.0 Unported License
©2010-2018 INPRESSCO® All Rights Reserved