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VIBRATION OF TWISTED AND CURVED CYLINDRICAL PANELS WITH VARIABLE THICKNESS

โœ Scribed by T. SAKIYAMA; X.X. HU; H. MATSUDA; C. MORITA

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
494 KB
Volume
254
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

A numerical procedure, with an exact strain}displacement relationship of twisted and curved cylindrical panels having variable thickness derived by considering the Green strain tensor on general shell theory, is presented using the principle of virtual work and the Rayleigh}Ritz method with algebraic polynomials as in-plane and transverse displacement functions. The accuracy and applicability of the procedure are veri"ed by comparing the present results with previous experimental and theoretical results for several panels. The e!ects of variation ratio of thickness in chordwise and lengthwise directions, twist, and curvature both in two directions aforementioned on vibrations of cylindrical panels are studied in detail, and typical vibration mode shapes are plotted to demonstrate the e!ects.

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