Determination of the excitation frequencies of laminated orthotropic non-homogeneous conical shells
COMPOSITES PART B-ENGINEERING, vol.132, pp.151-160, 2018 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 132
- Publication Date: 2018
- Doi Number: 10.1016/j.compositesb.2017.08.013
- Journal Name: COMPOSITES PART B-ENGINEERING
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.151-160
- Süleyman Demirel University Affiliated: Yes
Abstract
The excitation frequencies of parametric vibration of laminated non-homogeneous orthotropic conical shells (LNHOCSs) under axial load periodically varying with time, are determined using the classical shell theory (CST). The basic equations are found using the Donnell-Mushtari shell theory and reduce to the Mathieu-Hill type differential equation, in which the instability is examined by the Bolotin method. To validate of current results was made a comparison with the previous studies. The effects of stacking sequences, axial load factors, non-homogeneity, as well as the variation of geometric characteristics on the backward and forward excitation frequencies (BFEFs) of conical shells are studied in detail. (C) 2017 Elsevier Ltd. All rights reserved.