Accession Number:

AD0684318

Title:

VIBRATION EVALUATION OF SANDWICH CONICAL SHELLS WITH FIBER-REINFORCED COMPOSITE FACINGS

Descriptive Note:

Final rept. 1 Jul 1967-31 Jul 1968

Corporate Author:

OKLAHOMA UNIV RESEARCH INST NORMAN

Report Date:

1968-12-01

Pagination or Media Count:

75.0

Abstract:

The report describes an experimental and analytical evaluation of the vibrational characteristics of a truncated conical shell of sandwich construction. The shell was composed of fiber glass-epoxy facings and aluminum honeycomb core. The dimensions were selected to be typical of an Army aircraft fuselage structure. The shell was suspended by soft cords, to closely approximate free-free boundary conditions, and was excited laterally by an electrodynamic shaker placed at various locations along the shell. This analysis includes the orthotropic nature of the composite-material facings. Values of the damping logarithmic decrement are also presented.

Subject Categories:

  • Aircraft
  • Laminates and Composite Materials
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE