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Vibration analysis of composite sandwich beams with viscoelastic core by using differential transform method

✍ Scribed by Aytac Arikoglu; Ibrahim Ozkol

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
688 KB
Volume
92
Category
Article
ISSN
0263-8223

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✦ Synopsis

This paper deals with the vibration analysis of a three layered composite beam with a viscoelastic core. First, the equations of motion that govern the free vibrations of the sandwich beam are derived by applying Hamilton's principle. Then, these equations are solved by using differential transform method (DTM) in the frequency domain. The variation of modal loss factor with system parameters is evaluated and presented graphically. Also, the results obtained with DTM are checked against the findings of previous studies and a good agreement is observed. It is the first time that DTM is used for the eigenvalue analysis of a sandwich structure.

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