Porous-fibrous metallic material for sound-absorbing structures of aircraft GTE

Farafonov D.P., Migunov V.P., Degovets M.L., Alyoshina R.Sh.
UDC
621.775.8:62-758.34
DOI
10.18577/2307-6046-2016-0-4-1-1
Article PDF (Russian) (622.11 KB)
How to cite
Farafonov D.P., Migunov V.P., Degovets M.L., Alyoshina R.Sh. Porous-fibrous metallic material for sound-absorbing structures of aircraft GTE // Proceedings of VIAM. 2016. No. 4. DOI: 10.18577/2307-6046-2016-0-4-1-1. URL: https://test.viam.ru/en/journal/2016/4/1
Abstract

The article presents the results of VIAM efforts aimed at creating an effective sound-absorbing material made of metal fibers for high-temperature sound-absorbing structures of aviation gas turbine engines (SAS). Porous fibrous metal material (PFMM) is one of the most challenging materials for SAS. Their high level of the absorption properties, which are almost self-contained under stream sound pressure, can provide noise reduction within a wide frequency range of the sound vibrations. In addition to high acoustic efficiency of the sound absorbing materials for aircraft gas turbine engines they have to possess high heat and corrosion resistance, high strength with low specific weight. The results of VIAM studies show that with the help of the metal fibers it is possible to create the sound-absorbing material with the characteristics named above. Research is executed within implementation of the complex scientific direction 15.7. «Metal porous-fibrous materials for sound-proof struct

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