Российский фонд
фундаментальных
исследований

Физический факультет
МГУ им. М.В.Ломоносова
 

06.19 Другие физические эффекты в акустических полях

 

Крит Т.Б., Байназаров Т.Р., Гришин П.Н., Марчук Ф.Ю., Андреев В.Г. «Локальные измерения упругости гелеобразных материалов методом микроиндентирования» Сборник трудов XXXV сессии Российского акустического общества. Москва, 13–17 февраля 2023 г., с. 826-833 (2023)

Сборник трудов XXXV сессии Российского акустического общества. Москва, 13–17 февраля 2023 г., с. 826-833 (2023) | Рубрики: 06.10 06.17 06.19

 

Raza M., Ahsan M., Wee M.F.M.R., Baqir M.A. «Investigation of Open Cloaking of Acoustic Fields via Transformation Optics» Acoustical Physics, 70, № 1, с. 76-81 (2024)

The conventional cloak has been studied in vast space while the open cloaking is explored in a few articles and there is a dire need for further investigations in this field. The open cloaks provide a way to exchange information data from the cloaked region to outside and vice versa. In this work, we have investigated the open cloaking phenomenon in acoustic fields at an audible frequency. This study will be helpful in developing a Multiphysics open cloaking platform and cloaked will enable to transfer or prohibition of the exchange of material from one region to another.

Acoustical Physics, 70, № 1, с. 76-81 (2024) | Рубрики: 06.15 06.19

 

Vjuginova A., Vjuginov S.N., Novik A.A. «Simulation of Ultrasonic Tools for Cutting Honeycomb Panels Made of Aluminum and Aramid (Kevlar)» Acoustical Physics, 70, № 1, с. 189-193 (2024)

Honeycomb panels made of aluminum and composite materials aramid, or Kevlar–are widely used in aviation, space, automotive, and other fields due to their unique characteristics: high strength and rigidity, low density, and good thermal insulation properties. However, the mechanical processing of products made of honeycomb materials faces several difficulties, and one of the technologies that effectively solves the problems of cutting products made of honeycomb materials is ultrasonic cutting. In this paper, the finite element method is used to study the frequency properties necessary for designing tools for ultrasonic cutting of products made of honeycomb materials with operating frequencies around 20 kHz and various geometric parameters for cutting different variants of honeycomb constructions. The results of analyzing the wave dimensions of specialized ultrasonic triangular and disk-type instruments depending on geometry features are shown, along with the experimental results for a number of developed variants.

Acoustical Physics, 70, № 1, с. 189-193 (2024) | Рубрики: 06.19 14.05 14.06