VIBRATIONS OF ORTHOTROPIC SANDWICH CONICAL SHELLS WITH FREE EDGES

被引：15

作者：

BERT, CW

RAY, JD

机构：

[1] University of Oklahoma, Norman, OK

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 1969年 / 11卷 / 09期

关键词：

D O I：

10.1016/0020-7403(69)90024-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Experimental and analytical evaluations are presented for the vibrational characteristics of a truncated conical shell of sandwich construction. The shell consists of fiber glass-epoxy facings and aluminum honeycomb core. The shell is suspended by soft cords, to closely approximate free-free boundary conditions, and excited laterally by an electrodynamic shaker placed at various locations. The Kennedy-Pancu method of data reduction is used to accurately separate vibrational modes having closely spaced frequencies. The two lowest unsymmetric-mode frequencies, for various values of circumferential wave number, agree quite closely with those predicted by a Rayleigh-Ritz inextensional analysis which includes the orthotropic nature of the composite material facings. © 1969.

引用

页码：767 / &

共 18 条

[1] FLEXURAL VIBRATIONS OF THE WALLS OF THIN CYLINDRICAL SHELLS HAVING FREELY SUPPORTED ENDS [J].