Effect of Thickness on Asymmetric Extensional Damping Treatment using Viscoelastic Materials
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International Journal of Engineering Trends and Technology (IJETT) | 
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| © 2017 by IJETT Journal | ||
| Volume-50 Number-5 |
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| Year of Publication : 2017 | ||
| Authors : M.Prasanth Kumar, B.Mamatha, Dr.V.V.S.Bhaskara Raju, Dr.N.Ramanaiah, D.Appa Rao |
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| DOI : 10.14445/22315381/IJETT-V50P248 |
Citation
M.Prasanth Kumar, B.Mamatha, Dr.V.V.S.Bhaskara Raju, Dr.N.Ramanaiah, D.Appa Rao "Effect of Thickness on Asymmetric Extensional Damping Treatment using Viscoelastic Materials", International Journal of Engineering Trends and Technology (IJETT), V50(5),292-295 August 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
Unwanted vibration effects produced in structures may be eliminated by using vibration suppression methods. The most common form of vibration suppression is to add viscoelastic damping treatment to structural elements. These treatments will be known as Extensional damping also known as free layer damping and constrained layer damping, which consist of sandwiched metal and viscoelastic layer combinations which help to reduce vibrations. A thin plate may be highly resonant and exhibit large vibration that cause fatigue and failure, or transmit vibration to other parts of the structure. Applying an elastic coating to the plate surface increases the damping of the beam and thereby significantly reduces the vibration and its transmission. In the present paper, different types of rubber damping layers such as Natural, Nitrile and Neoprene rubbers (of 60 shore A hardness) are used in the FLD treatment of metallic plate(AA 6063) to study the capability of reducing vibrations over a predefined frequency range of interest and also effect of thickness of damping layers.
Reference
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Keywords
FLD, Frequency response function, Vibration amplitude.