Nonlinear Dynamic Behavior of Hyperbolic Paraboloidal Shells Reinforced by Carbon Nanotubes with Various Distributions
Journal of Applied and Computational Mechanics, cilt.7, sa.2, ss.913-921, 2021 (ESCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 7 Sayı: 2
- Basım Tarihi: 2021
- Doi Numarası: 10.22055/jacm.2021.36043.2783
- Dergi Adı: Journal of Applied and Computational Mechanics
- Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus, Directory of Open Access Journals
- Sayfa Sayıları: ss.913-921
- Anahtar Kelimeler: Amplitude-frequency relationship, CNTs, Hyperbolic paraboloidal shallow shells, Nonlinear dynamics
- İstanbul Gelişim Üniversitesi Adresli: Hayır
Özet
The analytical solution of the nonlinear dynamic behavior of CNT based hyperbolic paraboloidal shallow shells (HYPARSSs) with various distribution shapes is presented. A theoretical model was created for HYPARSSs reinforced with CNTs using the von Kármán -type nonlinearity. Then the nonlinear basic equations are reduced to ordinary nonlinear differential equations using Galerkin methods and the correlation for frequency-amplitude relationship is obtained using the Grigolyuk method. In addition, the nonlinear frequency/linear frequency (NL/L) ratio is determined as a function of amplitude. Comparisons with reliable results in the literature were made to test the accuracy of the formulas. Finally, a systematic investigate is performed to control the influences of CNTs in the matrix, CNT distribution types and nonlinearity on the vibration frequency-amplitude relationship.