Normal-Mode Vibrations of Systems of Elastically Connected Concentric Rings.

Autor: Stead, K. A., Liu, J., Hoppmann, W. H.
Zdroj: Journal of the Acoustical Society of America; 1970, Vol. 47 Issue 3B, p892-898, 7p
Abstrakt: This paper presents the development and solution of the differential equations of flexural vibrations of a system of n elastically connected concentric rings. By using these equations, the particular case of a two-ring system is analyzed in detail. The frequency equation and displacement functions are then presented. The analysis includes a consideration of the effect of rotatory inertia. Vibration experiments were made on physical model of the two-ring system. The results are compared with results of calculations based on the theory. An interesting phenomenon encountered during the investigation suggests the possibility of exciting, at a definite frequency, patterns of displacement that probably represent the combination of two normal modes. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index