Noise suppression liner for jet engines.

摘要

A tubular component such as an exhaust shroud is provided for use in a noise suppression system for an aircraft jet engine, the tubular component providing an outlet passage for jet engine produced exhaust gases having turbo-machinery produced sound energy superimposed thereon, the tubular component having an outer structural shell (44) with a tubular axis (32) and an acoustic liner supported within the structural shell formed of a tubular honeycomb metallic core, the honeycomb core being formed of thin metallic strips joined into a welded honeycomb arrangement of contiguous hexagonal cells (30). Each of the cells (30) has a longitudinal axis extending perpendicular to the shell tubular axis, each shell being of depth of at least one inch and of a cross-sectional size from wall-to-wall of about 3/8 to 1/2 inch. <IMAGE>