Library Subscription: Guest

DETERMINING ACOUSTIC EFFICIENCY OF MATERIALS AND STRUCTURES IN LABORATORY AND REAL CONDITIONS PART 1: SOUND ABSORPTION AND SOUND INSULATION

Volume 49, Issue 8, 2018, pp. 841-859
DOI: 10.1615/TsAGISciJ.2018029529
Get accessGet access

ABSTRACT

A complex of experimental studies to determine the sound-absorbing properties of aircraft seats and mineral fiber wedges of various densities was performed in the sound-measuring chambers of the AC-11 installation and on Yak-42 aircraft (AS-14 test bench). The sound transmission loss of the onboard aircraft structure of the AS-14 test bench and of the test panel of the AC-11 test bench was determined at various sound-insulating set options. It is shown that under conditions close to real, the effectiveness of sound-absorbing and sound-insulating materials and structures may differ significantly from the values obtained during testing in laboratory conditions.

CITED BY
  1. Zverev Alexander Ya., Chernyh Valery V., On Acoustic and Vibroacoustic Characteristics of Multilayer Composite Panels, 2022 International Conference on Dynamics and Vibroacoustics of Machines (DVM), 2022. Crossref

Latest Issue

KIRILL IVANOVICH SYPALO−50TH ANNIVERSARY NUMERICAL STUDY OF THE DISTURBANCES GENERATED BY MICROJETS IN A SUPERSONIC FLAT-PLATE BOUNDARY LAYER Andrei Valerievich Novikov, Alexander Vitalyevich Fedorov, Ivan Vladimirovich Egorov, Anton Olegovich Obraz, Nikolay Nikolaevich Semenov ANALYSIS OF THE MOVING DETONATION INTERACTION WITH TURBULENT BOUNDARY LAYERS IN A DUCT ON THE BASIS OF NUMERICAL SIMULATION Vladimir Anatolievich Sabelnikov, Vladimir Viktorovich Vlasenko, Sergey Sergeyevich Molev EXPERIMENTAL STUDY OF COUNTERFLOW BLOWING IN HIGH-SPEED FLOW THROUGH AN ASYMMETRIC SLOT IN THE LEADING EDGE OF A SHARP WEDGE Eduard Borisovich Vasilevskii, Ivan Valeryevich Ezhov, Pavel Vladimirovich Chuvakhov ASYMPTOTIC SOLUTIONS TO HYPERSONIC BOUNDARY LAYER EQUATIONS ON A FLAT WING WITH A POINT OF INFLECTION ON THE LEADING EDGE Georgiy Nikolaevich Dudin, Aleksey Vyacheslavovich Ledovskiy WAVE MODEL OF ORGANIZED STRUCTURES IN A TURBULENT BOUNDARY LAYER ON A PLATE WITH ZERO LONGITUDINAL PRESSURE GRADIENT Vladimir Alekseevich Zharov, Igor Ivanovich Lipatov, Rami Salah Saber Selim NUMERICAL SIMULATION OF THE FLOW AROUND LANDSCAPE FRAGMENTS AND SOLUTION VERIFICATION Viktor Viktorovich Vyshinsky, Koang T'in' Zoan POLYNOMIAL REPRESENTATION OF THERMODYNAMIC PROPERTIES OF COMBINED FUEL SYSTEMS IN RAMJET SIMULATION MODELS Timur Romanovich Zuev, Mikhail Semenovich Tararyshkin A MODEL TEST METHODOLOGY FOR THE INVESTIGATION OF AN ELASTICALLY SCALED MAIN ROTOR Maxim Andreyevich Ledyankin , Sergey Anatolyevich Mikhailov, Dmitry Valeryevich Nedel'ko, Timur Arturovich Agliullin INDEX, VOLUME 51, 2020
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections Prices and Subscription Policies Begell House Contact Us Language English 中文 Русский Português German French Spain