Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)10878Research ArticleINVESTIGATION OF THE MOTION OF A CYLINDRICAL INCLUSION WITH ELASTIC ELEMENTS IN THE ACOUSTIC MEDIUMSeyfullayevA Iа.seyfullayev@yahoo.comMamedovaG Agular-gulshan@rambler.ruNational Academy of Sciences of Azerbaijan, Institute of Mathematics and Mechanics, Baku150620156465512092016Copyright © 2016, Structural Mechanics of Engineering Constructions and Buildings2016In this paper, the unsteady motion of a cylindrical inclusion with an oscillator in the acoustic medium after the passage of the wave is investigated. The boundary functions and potentials, depending on the time, and also free oscillations of a cylindrical inclusion contain- ing suspended mass situated in acoustic medium are investigated. Eigen-frequencies of oscillations are defined at some values of parameters of the system.vibrationwaveshelldensityколебанияволначастотаплотностьвключениядавле- нияпотенциал