Fundamental frequency of a cantilever composite filament-wound anisogrid lattice cylindrical shell

Autor:	Evgeny V. Morozov, A.V. Lopatin, A.V. Shatov
Rok vydání:	2015
Předmět:	Vibration Cantilever Classical mechanics Materials science Transcendental equation Composite number Ceramics and Composites Cylinder Equations of motion Mechanics Fundamental frequency Orthotropic material Civil and Structural Engineering
Zdroj:	Composite Structures. 133:564-575
ISSN:	0263-8223
DOI:	10.1016/j.compstruct.2015.07.109
Popis:	Free vibrations of a cantilever composite lattice cylindrical shell with the rigid disk attached to its free end are considered in the paper. The filament-wound lattice cylinder is modelled as a continuous shell characterised by the effective stiffness parameters. The governing equations of motion are derived using the semi-membrane theory of orthotropic cylindrical shells. The free vibration problem formulated based on these equations is reduced to a transcendental equation. The solution of this equation yields the fundamental frequency of the composite lattice cylinder under consideration. The results of calculations are verified by comparison with a finite-element solution. The effect of the angle of orientation of unidirectional helical ribs on the magnitude of fundamental frequency is studied using a parametric analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ef26fd3c953c9aff3b6f661aa360b91f https://doi.org/10.1016/j.compstruct.2015.07.109 Zobrazit plný text záznamu Full Text from ScienceDirect