TsAGI scientists presented research aimed at aircraft noise reduction
28 February 2017
The photo is provided by VIAM.
TsAGI’s scientists prepared the paper entitled “Issues related to creation of efficient sound-absorbing structures for advanced high-bypass turbojet engines,” which, according to the organizers’ opinion, was declared to be the best one among those presented at the Conference. The authors analyzed the issues to be dealt with during design of structures meant for noise reduction of the aircraft engine fan. The scientists came to the conclusion that stricter ICAO’s regulations for on-site noise have brought the research process of creating sound-absorbing structures for new-generation turbojet engines to a new round of development. Therefore, all the algorithms of the process flow need modifying by more accurate consideration of the factors determining the efficiency of sound-absorbing structures.
In addition, TsAGI’s specialists referred to the issue of onboard noise in an advanced long-range aircraft. Also, they explained the acoustic research of multilayer sound-absorbing structures with corrugated fillers of air spaces and thin dense fine meshes, flat composite panels, and vibration-absorbing coatings with a reinforcing layer.
The 2nd All-Russian Scientific and Technical Conference “Functional materials for aircraft noise reduction onboard and on site” was held in VIAM along with the Process Platform “New polymer composite materials and technologies.” The Conference was attended by specialists researching the issues of aircraft noise reduction onboard and on site.