Interaction of acoustic waves with cylindrical and non-cylindrical duct walls and their impact on sound insulation

Abstract

Those properties should be evaluated theoretically and analytically, this making it possible to decide of their efficiency for sound abatement. It was established by the investigations that interaction of those properties predetermines the total size and quality of sound insulation. The conclusions state that the most effective sound insulation is achieved by using casings, shells and ducts of the precise cylindrical form and of the same parameters.