Polymeric sound-absorbing material design for environmental noise abatement of aircraft engines

Shuldeshov Е.М., Kraev I.D., Petrova A.P.
UDC
678.067.5
DOI
10.18577/2307-6046-2018-0-2-6-6
Article PDF (Russian) (626.01 KB)
How to cite
Shuldeshov Е.М., Kraev I.D., Petrova A.P. Polymeric sound-absorbing material design for environmental noise abatement of aircraft engines // Proceedings of VIAM. 2018. No. 2. DOI: 10.18577/2307-6046-2018-0-2-6-6. URL: https://test.viam.ru/en/journal/2018/2/6
Keywords
sound-absorbing material design, factor of sound absorption, water repellency, porous material.
Abstract

In this article questions of noise abatement of civil air vehicles, being actual in the light of toughening of requirements for environmental noise, are considered. The way of improvement of mass and acoustic characteristics of NDC through application of sound-absorbing material design (instead of glass-fiber-reinforced honeycomb) with a porous insert characterized by the preset thickness and located at a certain height is offered. The manufacturing technology of similar materials as well as characteristics of the produced material are shortly described.

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