Accurate Results for Free Vibration of Doubly Curved Shallow Shells of Rectangular Planform (Part.1)

Narita, Yoshihiro; Narita, Daisuke

EPI International Journal of Engineering, 2021, 4(1), 29-36

Permalink : https://hdl.handle.net/2115/83183

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/83183
タイトル
Accurate Results for Free Vibration of Doubly Curved Shallow Shells of Rectangular Planform (Part.1)
著者
e-Rad_Researcher
00137407
著者名
Narita, Yoshihiro
著者名
Narita, Daisuke
言語
英語
キーワード
Accuracy
free vibration
natural frequency
Ritz method
shallow shell
発行日
2021-02
出版者
The Center of Technology, Faculty of Engineering, University of Hasanuddin
収録物名
EPI International Journal of Engineering
巻(号)
4(1)
ページ
29-36
抄録
A method is presented for determining the free vibration frequencies of doubly curved, isotropic shallow shells under general edge conditions and is used to obtain accurate natural frequencies for wide range of geometric parameters. Based on the shallow shell theory applicable to thin thickness shells, a method of Ritz is extended to derive a frequency equation wherein the displacement functions are modified to accommodate arbitrary sets of edge conditions for both in-plane and out-of-plane motions. In numerical computation, convergence is tested against series terms and comparison study is made with existing results by other authors. Twenty one sets of frequency parameters are tabulated for a wide range of shell shape and curvature ratio to serve as data for future comparison and practical design purpose.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
2615-5109
EISSN
2621-0541
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.25042/epi-ije.022021.05