Effect of Semi-Geodesic Winding on the Vibration Characteristics of Filament Wound Shells of Revolution

KAYRAN A., Ibrahimoglu C. S.

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, vol.78, no.6, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 78 Issue: 6
  • Publication Date: 2011
  • Doi Number: 10.1115/1.4003907
  • Journal Name: JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: filament winding, semigeodesic fiber path, shell of revolution, composite materials, vibration characteristics, CONICAL SHELLS, ANISOTROPIC SHELLS, COMPOSITE SHELLS, DESIGN, DEFORMATION, EQUATIONS, ELEMENT, PLATES, FSDT
  • Middle East Technical University Affiliated: Yes

Abstract

The effect of semigeodesic winding on the free vibration characteristics of filament wound shells of revolution is studied. For this purpose multisegment numerical integration technique is extended to the solution of the free vibration problem of composite shells of revolution which are wound along the semigeodesic fiber paths counting on the preset friction used during the winding process. Sample results are obtained for truncated conical and spherical shells of revolution and the effect of preset friction on the vibration characteristics of filament wound shells of revolution is particularly analyzed. Results show that when the preset friction is increased natural frequencies of higher circumferential vibration modes also increase irrespective of the initial winding angle, and the circumferential bending stiffness stands out as the dominant parameter governing the natural frequencies of higher circumferential vibration modes.