Review on Unconstrained Layer Damping Treatment and Its Applications

Authors

  • M. Prasanth Kumar Assistant Professor, Department of Mechanical Engineering, Anil Neerukonda Institute of Technology and Sciences, Vizag, Andhra Pradesh, India
  • P. Jyothi M.Tech Student, Department of Mechanical Engineering, Anil Neerukonda Institute of Technology and Sciences, Vizag, Andhra Pradesh, India
  • N. Ramanaiah Professor, Department of Mechanical Engineering, Andhra University College of Engineering (A), Vizag, Andhra Pradesh, India

Keywords:

Vibrations, damping treatments, CLD, FLD, loss factor

Abstract

The unconstrained layer damping is also called as free layer damping. It is formed by applying a damping material on the surface of a structure. This treatment was used to reduce and control the vibrations and noise in structures. This paper presents a review on unconstrained layer damping treatment on beams using different damping materials. The objective is to present various aspects and relative merits of unconstrained damping treatment use in various cases. The important considerations and application areas of this technique is discussed in this paper.

 

References

Reddy CR, Ganesan N, Rao BV, et al. The response of plates with unconstrained layer damping treatment to random acoustic excitation. part I: damping and frequency evaluations. Journal of Sound and Vibration. 1980;69(1):35–43.

Roy and Ganesan. The theoretical and experimental investigations on the damping effectiveness of partially applied unconstrained layer damping treatments on rectangular plates having central rectangular cutouts. 1993.

Lee DH, Hwang WS. Optimization of length for unconstrained viscoelastic damping layer of beams using fractional derivative model. AIAA journal. 2004;42(10):2167–21670.

Ramji Koona, Ganesh Kumar. P.V.S., and Ranganath. S. Optimization of Surface Damping Treatments for Vibration Control of Marine Structure. Proceedings of Experimental Analysis of Nano and Engineering Material Structures, pp. 747–748, 2007.

Hazard L. Design of viscoelastic damping for vibration and noise control, modeling, experiments and optimization [PhD thesis]. [Brussels]: Free University of Brussels; 2006. 228p.

Yi S, Ahmad MF, Hilton HH. Dynamic Responses of Plates with Viscoelastic Free Layer Damping Treatment. Journal of Vibration and Acoustics. 2008; 118: 362–367.

Gallimore CA. Passive viscoelastic constrained layer damping application for a small aircraft landing gear system [Master’s thesis]. [Blacksburg (VA)]: Virginia tech; 2008. 117p.

Cura F, Mura A, Scarpa F. Modal strain energy based methods for the analysis of complex patterned free layer damped plates. Journal of Vibration and Control. 2012;18(9):1291–302.

Ashish M. Dharme, Pravin P. Hujare. Analysis of Performance of FLD and CLD Technique. International Journal of Engineering Sciences & Research Technology, Vol. 3(7), pp. 340–343, 2014.

Pankaj R. Beldar and Kushare D.V. Analytical, experimental and numerical analysis of passive damping treatment of Butyl rubber. International Research Journal of Engineering and Technology, Vol. 3(5), pp. 15–20, 2016.

Chandran KV, Patil AP. The experimental modal frequency and damping estimation of viscoelastic material by circle fit method. International Journal of Current Engineering and Technology. 2016;6(6):2199–2204.

Jones D. Applied damping treatments: the damping of an element of a structural system is a measure of the rate of energy dissipation which takes place during cyclic deformation. 5th ed. New York: McGraw-Hill; 2002.

Amirali Sadeqi and Shapour Moradi. Vibration analysis of elastic beams with unconstrained partial viscoelastic layer. International Journal of Acoustics and Vibration, Vol. 23, pp. 65–73, 2018.

Prill O, Busch R, editors. Inter-Noise and Noise-CON Congress and Conference Proceedings; 2016 Aug; Germany. VA: Institute of Noise Control Engineering; 2016.

Prabakaran. B, Giovanni Ferrari and Marco Amabili. Identification of the viscoelastic response and nonlinear damping of a rubber plate in nonlinear vibration regime. Mechanical Systems and Signal Processing, Vol. 111, 2018.

Downloads

Additional Files

Published

2020-06-16

Issue

Vol. 11 No. 1 (2020)

Section

Review Article

License

Declaration and Copyright Transfer Form

(to be completed by authors)

I/ We, the undersigned author(s) of the submitted manuscript, hereby declare, that the above manuscript which is submitted for publication in the STM Journals(s), is not published already in part or whole (except in the form of abstract) in any journal or magazine for private or public circulation, and, is not under consideration of publication elsewhere.

  • I/We will not withdraw the manuscript after 1 week of submission as I have read the Author Guidelines and will adhere to the guidelines.
  • I/We Author(s ) have niether given nor will give this manuscript elsewhere for publishing after submitting in STM Journal(s).
  • I/ We have read the original version of the manuscript and am/ are responsible for the thought contents embodied in it. The work dealt in the manuscript is my/ our own, and my/ our individual contribution to this work is significant enough to qualify for authorship.
  •  I/We also agree to the authorship of the article in the following order:

Author’s name                                    

 

1. ________________

2. ________________

3. ________________

4. ________________

 

We  Author(s) tick this box and would request you to consider it as our signature as we agree to the terms of this Copyright Notice, which will apply to this submission if and when it is published by this journal.