Accession Number:

AD0652255

Title:

APPROXIMATIONS IN NONSYMMETRIC SHELL VIBRATIONS.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS

Personal Author(s):

• Ross,Edward W. , Jr

Report Date:

1967-04-01

Pagination or Media Count:

35.0

Abstract:

The nonsymmetric vibration of shells of revolution is studied by means of classical thin-shell theory. Approximations are found by asymptotic methods for the eight solutions of the system. The behavior of the solutions when the frequency becomes either large or small is discussed. The approximations are used to give general descriptions of the types of natural frequencies and modes that can be found. In particular, the occurrence of very low natural frequencies associated with inextensional modes is shown to be impossible in many cases. Author

Descriptors:

• (*SHELLS(STRUCTURAL FORMS)
• *VIBRATION)
• (*CONTINUUM MECHANICS
• SHELLS(STRUCTURAL FORMS))
• ELASTIC PROPERTIES
• APPROXIMATION(MATHEMATICS)
• ASYMPTOTIC SERIES
• BODIES OF REVOLUTION

Subject Categories:

• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE