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Vibration of a class of shallow shells bounded by edges described by polynomials Part II: natural frequency parameters for shallow shells of various different planforms

✍ Scribed by P.G. Young; S.M. Dickinson


Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
458 KB
Volume
181
Category
Article
ISSN
0022-460X

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✦ Synopsis


In Part I of this paper, an eigenvalue equation for the free vibration of thin shallow shells of curvilinear planform was obtained by means of the Ritz method. The validity of the approach was demonstrated through the treatment of three shells for which comparison results exist in the literature, these being shells of circular, rectangular and elliptical planform. In this second part of the paper, further results are presented for shells with these planforms, both with and without complicating effects, such as free edged cut-outs, stepped material thickness or internal line supports, and for various types of curvature. Shells of different planform, including triangular, epicycloidal and combined rectangular and circular planform, are also treated.


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Vibration of a class of shallow shells b
✍ P.G. Young; S.M. Dickinson 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 437 KB

The Ritz method is used to obtain an eigenvalue equation for the free vibration of thin shallow shells of curvilinear planform defined by polynomial expressions. The shell is discretized into four 90°sectorial elements allowing for up to four different outer curves and up to four different inner cur