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The Effects Of Various Design Parameters On The Free Vibration Of Doubly Curved Composite Sandwich Panels by P.R. CUNNINGHAM; R.G. WHITE; G.S. AGLIETTI is a Engineering article available to read on EtoBox.

What is The Effects Of Various Design Parameters On The Free Vibration Of Doubly Curved Composite Sandwich Panels about?

Sandwich panels have a very high sti!ness to weight ratio, which makes them particularly useful in the aerospace industry where carbon "bre reinforced plastics and lightweight honeycomb cores are being used in the construction of #oor panels, fairings and intake barrel panels. In the latter case, the geometry of the panels can be considered doubly curved. This paper presents an introduction to an ongoing study investigating the dynamic response prediction of acoustically excited composite sandwich panels which have double curvature. The "nal objective is to assess and hopefully produce an up to date set of acoustic fatigue design guidelines for this type of structure. The free vibration of doubly curved composite honeycomb sandwich panels is investigated here, both experimentally and theoretically, the latter using a commerically available "nite element package. The design and manufacture of three test panels is covered before presenting experimental results for the natural frequencies of vibration with freely supported boundary conditions. Once validated against the experimental results, the theoretical investigation is extended to study the e!ects of changing radii of curvature,

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Author

P.R. CUNNINGHAM; R.G. WHITE; G.S. AGLIETTI

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0022-460X)

Published

2000

Language

EN

Field

Engineering (Physical Sciences)