Forced vibration analysis of viscoelastic helical rods with varying cross-section and functionally graded material
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Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In scope of this study, forced vibration analysis of viscoelastic helical rods with varying cross-section and functionally graded material are investigated. Differential equations governing the dynamic behavior of helical rods are obtained in Laplace domain by the Timoshenko's beam theory. Material and section geometry are assumed to be varying functionally along the rod axis. Viscoelasticity of the material is implemented via Kelvin's model. Stiffness and transfer matrix methods are used together in order to obtain dynamic stiffness matrix of the system. Acquired results in Laplace domain are converted to time domain by using Durbin's inverse Laplace algorithm. A parametric study is carried out for the investigation of the effects of material variation, non-uniformity and damping on the forced vibration of functionally graded viscoelastic rods.
Açıklama
Anahtar Kelimeler
Helical rod, forced vibration, Kelvin viscoelastic model, functionally graded material, varying cross-section
Kaynak
Mechanics Based Design of Structures and Machines
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
51
Sayı
7
