VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University209110.18287/2541-7533-2012-0-3-1(34)-33-38UnknownAbout some directions in development avation engine buildingsZamtfortB. S.<p>Candidate of Science (Engineering)</p>
<p>Senior Scientific Worker, Leading Engineer</p>bsz@inbox.ruScientific research Moscow complex Central Aerohydrodynamic Institute (TsAGI)01102012113-133381002201510022015Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>Analysis of the acoustic characteristics of the engines with open rotor and turbofan engines shown what in enginenoise with open rotor in addition to traditional component of the noise added tonal noise peaks at combinationfrequencies in low frequency part spectra. All of this creates many difficulties in the reduction the noise of aircrafts withthis engines on the ground. Problem of choise engines for future aviation discussed.</p>Engine with open rotorturbofan with super big bypass ratioacoustics characteristicsblade with serrated trailing edgeДвигатель с открытым роторомТРДД со сверхбольшой степенью двухконтурностиакустические характеристикилопасти с шевронной задней кромкой