VESTNIK of Samara University. Aerospace and Mechanical EngineeringVESTNIK of Samara University. Aerospace and Mechanical Engineering2542-04532541-7533Samara National Research University226010.18287/2541-7533-2012-0-4(35)-103-110UnknownAssessment of changes in the sound-proof ability of the rocket fairing with layers of sound-proof materials varying in thicknessPopovP. A.<p>Head of Group</p>banduir@rambler.ruSpace Rocket Center "TsSKB-Progress", Samara181220121141031100203201502032015Copyright © 2015, VESTNIK of the Samara State Aerospace University2015<p>The paper presents a method that makes it possible to assess the changes in the sound-proof ability of thepanels of the head part of a rocket, considering all the heterogeneities of its structure. The results of calculatingthe influence of removing part of the sound-proof material from the surface of a standard head part of a rocket onthe ultrasonic pressure under the head part are presented.</p>Acoustic pressuresound insulationhead fairingfactor of lossesdiffraction«small» and «great» heterogeneity«parallel» and «consecutive» methodsАкустическое давлениезвукоизоляцияголовной обтекателькоэффициент потерьдифракция"малая" и "большая" неоднородности"параллельный" и "последовательный" методы