Accession Number:

AD0276458

Title:

FREE VIBRATIONS OF RING-STIFFENED SHELLS

Descriptive Note:

Corporate Author:

GRUMMAN AIRCRAFT ENGINEERING CORP BETHPAGE N Y

Personal Author(s):

• GARNET,H.
• GOLDBERG,M.A.

Report Date:

1962-03-01

Pagination or Media Count:

1.0

Abstract:

The modal method is used to obtain the free modes of vibration of ring-stiffened shells. The equations of motion of the ring reinforced shell are written in terms of the normal modes of the unstiffened shell. The stiffening rings are considered as displacement-dependent line-loads and enter the analysis in terms of their elastic properties. This procedure replaces the usual transcendental frequency equation by a more easily evaluated system of linear, algebraic, homogeneous equations. An arbitrary number of intermediate rings of unequal size and spacing may be accommodated. Author

Descriptors:

• *STIFFENED CYLINDERS
• *VIBRATION
• ELASTIC PROPERTIES
• LINEAR SYSTEMS
• LOAD DISTRIBUTION
• MEDICAL RESEARCH
• PRESSURE
• REINFORCING MATERIALS
• RINGS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE