Prediction of Vibrational Behavior of Grid-Stiffened Cylindrical Shells
Joint Authors
Rahimi, G. H.
Ansari, R.
Hemmatnezhad, M.
Source
Advances in Acoustics and Vibration
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-10
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A unified analytical approach is applied to investigate the vibrational behavior of grid-stiffened cylindrical shells with different boundary conditions.
A smeared method is employed to superimpose the stiffness contribution of the stiffeners with those of shell in order to obtain the equivalent stiffness parameters of the whole panel.
Theoretical formulation is established based on Sanders’ thin shell theory.
The modal forms are assumed to have the axial dependency in the form of Fourier series whose derivatives are legitimized using Stoke's transformation.
A 3D finite element model is also built using ABAQUS software which takes into consideration the exact geometric configuration of the stiffeners and the shell.
The achievements from the two types of analyses are compared with each other and good agreement has been obtained.
The Influences of variations in shell geometrical parameters, boundary condition, and changes in the cross stiffeners angle on the natural frequencies are studied.
The results obtained are novel and can be used as a benchmark for further studies.
The simplicity and the capability of the present method are also discussed.
American Psychological Association (APA)
Rahimi, G. H.& Hemmatnezhad, M.& Ansari, R.. 2014. Prediction of Vibrational Behavior of Grid-Stiffened Cylindrical Shells. Advances in Acoustics and Vibration،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-456721
Modern Language Association (MLA)
Rahimi, G. H.…[et al.]. Prediction of Vibrational Behavior of Grid-Stiffened Cylindrical Shells. Advances in Acoustics and Vibration No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-456721
American Medical Association (AMA)
Rahimi, G. H.& Hemmatnezhad, M.& Ansari, R.. Prediction of Vibrational Behavior of Grid-Stiffened Cylindrical Shells. Advances in Acoustics and Vibration. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-456721
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456721