Theoretical and Experimental Methods for Determining the Far-Field Acoustic Pressure Radiated by Arbitrarily Excited, Finite Rectangular Plates in a Dense Fluid with Application to Turbulence Excitation - Option 5,
Abstract
Simple expressions are derived for the far-field mean square acoustic pressures generated by a vibrating rectangular finite plate subjected to arbitrary excitation in an infinite rigid baffle. The plate can either be simply supported or clamped-clamped; it is thin, flat, flexible, and isotropic and may be immersed in either heavy or light fluid. For the various wavenumber domains that encompass the acoustically fast surface modes and the acoustically slow edge and corner modes of a simply supported plate, the mean square acoustic pressures are expressed in terms of (1) distribution factors, (2) directivity factors, and (3) multipoles. Additionally, for these domains, the mean square acoustic pressure maxima and corresponding directivity angles are derived for each of the several plate modal configurations, namely, the even-even, even-odd, odd-even, and odd-odd plate modes.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1974
- Accession Number
- ADA006248
Entities
People
- Ralph C. Leibowitz