MATERIALS FOR SOUND-PROOF DESIGNS OF AIRCRAFT ENGINES (review)

Abstract

An overview of applied sound-proof designs, and also the directions of researches on improvement both designs, and materials applied to their manufacturing. The advantages and disadvantages of the existing ZPK options are considered. The main approaches to the solution of question of increase of acoustic efficiency of sound-proof designs are classified and described. Advantages and shortcomings of practical implementation of each approach are given. The conclusion is drawn on the most perspective direction of researches.