Natural vibration analysis of stiffened panels with arbitrary edge constraints using the assumed mode method

Cho, Dae Seung and Vladimir, Nikola and Choi, Tae Muk (2015) Natural vibration analysis of stiffened panels with arbitrary edge constraints using the assumed mode method. = Natural vibration analysis of stiffened panels with arbitrary edge constraints using the assumed mode method. Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment, 229 (4). pp. 340-349. ISSN 1475-0902. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2015). Točan broj autora: 3.

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Official URL: http://journals.sagepub.com/doi/abs/10.1177/147509...

Abstract

Natural vibration analysis of stiffened panels represents an important issue in different kinds of engineering applications. In this article, a procedure for the vibration analysis of stiffened panels with arbitrary edge constraints is presented. It is based on the assumed mode method, where natural frequencies and modes are determined by solving an eigenvalue problem of a multi-degree-of-freedom system matrix equation derived by using Lagrange’s equations of motion. The Mindlin thick plate theory is applied for a plate, while the effect of stiffeners having the properties of Timoshenko beams is accounted for by adding their strain and kinetic energies to the corresponding plate energies. The accuracy of the proposed procedure is justified by several numerical examples which include the natural vibration analysis of stiffened panels with different framing sizes, their lengths and orientations, plate thicknesses and different combinations of boundary conditions. A comparison of results with those obtained by the finite element method is provided, and good agreement is achieved.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Stiffened panel, natural vibrations, assumed mode method, Lagrange’s equations, arbitrary boundary constraints
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 600 Department of Naval Engineering and Marine Technology > 650 Chair of Marine Machinery and System Design
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q2 (2015)
Date Deposited: 23 May 2016 09:10
Last Modified: 27 Oct 2017 10:56
URI: http://repozitorij.fsb.hr/id/eprint/5884

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