Accession Number : AD0671868

Title :   MOVING BOUNDARY CONDITIONS IN AN ELASTIC MEDIUM,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Libelo,Louis F. ; Brown,Bernard

Report Date : 10 JAN 1968

Pagination or Media Count : 18

Abstract : The well known acoustic boundary value problem is extended to include situations where the boundary translates at constant velocity. Solution of the wave equation, in three dimensions, for a disturbance in a homogeneous, linear, irrotational elastic medium has been effected in the presence of a translating boundary. A study was made of the effect of this motion on the normal modes and standing wave patterns of the system. (Author)

Descriptors :   (*ACOUSTICS, BOUNDARY VALUE PROBLEMS), MOTION, ELASTIC PROPERTIES, SOUND TRANSMISSION, EQUATIONS, WAVE FUNCTIONS

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE