Elastik zemin üzerine oturan tabakalı kompozit silindirik kabukların zorlanmış titreşim analizi üzerine eğriliğin etkisi

Yıl 2018, Cilt: 24 Sayı: 6, 960 - 966, 18.12.2018

Ali Doğan

Öz

Bu çalışmada, elastik zemin üzerine oturan basit
mesnetli antisimetrik çapraz-katlı dizilimli tabakalı kompozit silindirik kalın
kabukların (LCS), zorlanmış titreşim analizi üzerine eğrilik oranının etkisi
sunulmaktadır. Bu analizlerde, zemin iki parametre ile modellendi. Bu modeller
Pasternak ve Winkler modelleridir. Hamilton prensipleri ile elastik zemin
üzerindeki tabakalı kompozit dikdörtgen kabukların hareket denklemleri elde
edilmiştir. Analizler, Laplace alanında elde edilmiştir. Modifiye Durbin
yöntemi ile çözümler Laplace alanından zaman alanına dönüştürülmüştür. Sayısal
sonuçlar grafikler şeklinde sunulmuştur.

Anahtar Kelimeler

Tabakalı kompozit, Zorlanmış titreşim, Eğrilik etkisi, Elastik zemin, Kayma deformasyon kabuk teorisi

The effect of curvature on transient analysis of laminated composite cylindrical shells on elastic foundation

Öz

This
study presents the effect of curvature ratio on transient vibration analysis of
simply supported antisymmetric thick cross-ply laminated composite shells (LCS)
on elastic foundation. In the analysis, the
foundation is modeled with two parameters. These models are
Pasternak and Winkler models.
The equation of motion for laminated rectangular shells
resting on elastic foundation is obtained through Hamilton’s principle. The
analysis is achieved in Laplace domain. By using modified Durbin’s algorithm,
calculations are transformed from Laplace domain to the time domain. The
numerical results are presented in the form of graphics.

Anahtar Kelimeler

Laminated composite, Transient vibration, Curvature effect, Elastic foundation, Shear deformation shell theory

Kaynakça

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