Accession Number:

AD0481751

Title:

PRESSURE RADIATED BY A POINT-EXCITED ELASTIC PLATE.

Descriptive Note:

Technical rept.,

Corporate Author:

CAMBRIDGE ACOUSTICAL ASSOCIATES INC MA

Personal Author(s):

• Feit, David

Report Date:

1966-03-01

Pagination or Media Count:

14.0

Abstract:

The acoustic pressure radiated by an infinite elastic plate excited by a time-harmonic point force or moment is obtained. The expression is valid for frequencies above and below the coincidence frequency. Below coincidence the pressure pattern is relatively non-directive and for all practical purposes insensitive to structural damping. Above coincidence the pressure pattern becomes directive, and the peak pressures can be significantly reduced by structural damping. Author

Descriptors:

• *METAL PLATES)
• (*ACOUSTIC PROPERTIES
• DAMPING
• MATHEMATICAL ANALYSIS
• MODULUS OF ELASTICITY
• MOMENTS
• VIBRATION
• FREQUENCY
• SOUND
• PRESSURE
• VELOCITY
• DIFFERENTIAL EQUATIONS

Subject Categories:

• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE