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

Aytac Arikoglu; Ibrahim Ozkol

doi:10.1016/j.compstruct.2010.05.022

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

Aytac Arikoglu, Ibrahim Ozkol^*

^*Corresponding author for this work

Department of Aeronautical Engineering

Research output: Contribution to journal › Article › peer-review

88 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3031-3039
Number of pages	9
Journal	Composite Structures
Volume	92
Issue number	12
DOIs	https://doi.org/10.1016/j.compstruct.2010.05.022
Publication status	Published - Nov 2010

Keywords

Composite material
Differential transform method
DTM
Frequency analysis
Loss factor
Sandwich beam

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10.1016/j.compstruct.2010.05.022

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abstract = "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.",

keywords = "Composite material, Differential transform method, DTM, Frequency analysis, Loss factor, Sandwich beam",

author = "Aytac Arikoglu and Ibrahim Ozkol",

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AU - Arikoglu, Aytac

AU - Ozkol, Ibrahim

PY - 2010/11

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N2 - 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.

AB - 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.

KW - Composite material

KW - Differential transform method

KW - DTM

KW - Frequency analysis

KW - Loss factor

KW - Sandwich beam

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JO - Composite Structures

JF - Composite Structures

IS - 12

ER -

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

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Keywords

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