Acoustical Physics最新文献_第5页

Erratum to: Acoustic Flows in a Hemispherical Fluid Drop on a Vibrating Substrate 在振动基板上的半球形液滴中的声波流动的勘误

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025550019

P. V. Lebedev-Stepanov

引用次数: 0

Dirac Cones in the Propagation of Lamb Waves in a Functionally Gradient Layer 函数梯度层中Lamb波传播中的Dirac锥

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025600548

S. G. Saiyan, S. V. Kuznetsov

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The Influence of Strain Rate on Nonlinear Elastic Properties of a 3D-Printed Photopolymer Sample 应变速率对3d打印光聚合物样品非线性弹性性能的影响

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771026600178

E. S. Mikhalev, A. I. Kokshaiskii, N. I. Odina, A. I. Korobov, P. K. Bezusov

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Numerical Model for Describing Three-Dimensional Acoustic Fields in Inhomogeneous Media Using the Wide-Angle Parabolic Approximation 用广角抛物线近似描述非均匀介质中三维声场的数值模型

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771024603169

E. O. Konnova, M. M. Karzova, V. A. Khokhlova, P. V. Yuldashev

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Solitonic Disintegration of Acoustic-Gravity Waves in the Atmosphere: 2. Numerical Modeling 大气中声-重力波的孤子分解：2。数值模拟

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025601220

S. P. Kshevetskii, Yu. A. Kurdyaeva, N. M. Gavrilov, S. N. Kulichkov

{"title":"Solitonic Disintegration of Acoustic-Gravity Waves in the Atmosphere: 2. Numerical Modeling","authors":"S. P. Kshevetskii, Yu. A. Kurdyaeva, N. M. Gavrilov, S. N. Kulichkov","doi":"10.1134/S1063771025601220","DOIUrl":"10.1134/S1063771025601220","url":null,"abstract":"<div><p>The propagation and disintegration of long weakly nonlinear acoustic-gravity waves in the upper atmosphere is investigated. A direct numerical solution of the hydrodynamic equations for atmospheric gas is performed using a high-resolution model. Comparison of the results of these numerical simulations with the results of the analysis of the system of hydrodynamic equations based on the KdV–Burgers equation derived in the first part of this study for atmospheric layers showed fairly good agreement. The preferred heights near which AGWs can disintegrate approximately correspond to the heights of the change in the sign of the horizontal velocity in the wave. The parameters of small-scale secondary soliton waves formed in simulations using full hydrodynamic equations agree well with the estimates based on the analysis of the KdV–Burgers equation. The latter equation does not describe the propagation of secondary waves over time into other atmospheric layers, as well as oscillations, tilts, and deformation of the layered structure created by the primary wave, due to the approximations used in deriving the KdV–Burgers equation.</p></div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 6","pages":"918 - 927"},"PeriodicalIF":1.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147618003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconstruction of the Sound Speed, Density, Absorption Coefficient, and Its Frequency Dependence in Multyfrequency Tomography Mode 多频层析成像模式下声速、密度、吸收系数及其频率依赖性的重建

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025601372

O. D. Rumyantseva, A. S. Shurup, D. I. Zotov

{"title":"Reconstruction of the Sound Speed, Density, Absorption Coefficient, and Its Frequency Dependence in Multyfrequency Tomography Mode","authors":"O. D. Rumyantseva, A. S. Shurup, D. I. Zotov","doi":"10.1134/S1063771025601372","DOIUrl":"10.1134/S1063771025601372","url":null,"abstract":"<div><p>A stationary medium containing inhomogeneities of the sound speed, density, and frequency-dependent absorption coefficient is considered. These inhomogeneous acoustic characteristics, including the power index of frequency dependence of the absorption coefficient, are unknown and should be reconstructed based on scattering data at many frequencies. First, the complex scatterer function, which contains the contributions from various types of the inhomogeneities, is reconstructed by solving the inverse problem. Then, the method for extracting the individual spatial distributions of all the sought acoustic characteristics from the scatterer function is proposed. Numerical modeling results are presented, which illustrate the capabilities and limitations of the method for various noise levels in the initial data. It is shown that the result of reconstructing the power index of the frequency dependence of the absorption coefficient has the lowest noise resistance. At the same time, the sound speed, density, and absorption coefficient are reconstructed with acceptable accuracy and high resolution.</p></div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 6","pages":"928 - 941"},"PeriodicalIF":1.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147618004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficiency of the Combined Application of Acoustic Emission and Vibration-Based Diagnostics in Estimating the Load-Bearing Capacity of a Composite Specimen 声发射和基于振动的诊断在复合材料试样承载能力估计中的联合应用效率

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025601414

N. A. Makhutov, Yu. G. Matvienko, I. E. Vasil’ev, V. Yu. Fursov

{"title":"Efficiency of the Combined Application of Acoustic Emission and Vibration-Based Diagnostics in Estimating the Load-Bearing Capacity of a Composite Specimen","authors":"N. A. Makhutov, Yu. G. Matvienko, I. E. Vasil’ev, V. Yu. Fursov","doi":"10.1134/S1063771025601414","DOIUrl":"10.1134/S1063771025601414","url":null,"abstract":"<p>The efficiency of the combined application of acoustic emission with vibration-based diagnostics and video recording in estimating the load-bearing capacity of a composite specimen and identifying the mechanism of evolution for its destruction under compression was studied. Before compression test, a specimen made of multilayer high-strength carbon fiber reinforced plastic was subjected to a shock with an energy of 90 J in the central part. The amplitude spectra recorded during vibration-based diagnostics remained almost unchanged before the appearance of developing macrodamages in the structure of the material. The picture abruptly changed with the appearance and development of macrodamages as shown by the scalogram of observed vibration signal spikes at the characteristic stages of evolution in the destruction of multilayer carbon fiber reinforced plastic. The dynamics of change in the peak frequencies of local maxima in the spectra of vibration signals generated by the processes of bruising the edges of a specimen, delamination and local buckling under bending, and destructing its layers under compressive load increased up to load-bearing capacity loss by the carbon fiber reinforced plastic was investigated. The application of vibration-based diagnostics in combination with video recording made it possible not only to verify the results of acoustic emission diagnostics by estimating the load-bearing capacity of carbon fiber reinforced plastic, but also to monitor the kinetics of macrodamages in its structure.</p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 6","pages":"952 - 965"},"PeriodicalIF":1.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147618006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acoustic Field and Energy Characteristics of a Slot Mode in a “Delay Line–Vacuum Gap–Resonating Plate” Structure “延迟线-真空间隙谐振板”结构槽模的声场和能量特性

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025600500

A. A. Teplykh, B. D. Zaitsev, A. P. Semyonov, I. A. Borodina

{"title":"Acoustic Field and Energy Characteristics of a Slot Mode in a “Delay Line–Vacuum Gap–Resonating Plate” Structure","authors":"A. A. Teplykh, B. D. Zaitsev, A. P. Semyonov, I. A. Borodina","doi":"10.1134/S1063771025600500","DOIUrl":"10.1134/S1063771025600500","url":null,"abstract":"<p>This paper presents some results of theoretical study on a structure including a delay line based on a <i>Y</i>–<i>X</i> cut lithium niobate plate with two interdigital transducers for the generation and reception of an acoustic wave with transverse horizontal polarization within a frequency band of 1.5–2.2 MHz. The thickness of the plate was 0.35 mm. An <i>Y</i>–<i>X</i>-140° cut lithium niobate resonating plate was placed above the delay line between the transducers with a certain gap. Simulation was carried out by the finite element method. When RF voltage was applied to the input transducer, pronounced resonant absorption peaks associated with the excitation of a slot acoustic mode were observed in the frequency dependence of total losses. The velocity of the slot mode was calculated, and the mechanical and electrical fields in the delay line and resonator were found for the first time. It has been shown that, at resonant frequencies, the energy of an acoustic wave is pumped from the delay line into the resonator. At the same time, a standing SH<sub>0</sub> wave containing more than 66% of system’s acoustic energy appears in the resonator to suppress the travelling wave at the output from the delay line. This conclusion is also confirmed by the amplitude distribution of the transverse horizontal component of the mechanical displacement in the delay line and resonator at resonant frequencies and between them.</p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 5","pages":"712 - 718"},"PeriodicalIF":1.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147617931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Arrival Times of Pulse Signals in the Case of Shallow-to-Deep Propagation in Waveguides of the Sea of Japan 日本海波导中浅深传播情况下脉冲信号到达时间研究

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S1063771025600639

M. A. Sorokin, A. A. Golov, S. S. Shkramada, A. Ch. Guzovskaya, P. D. Tkachenko, D. V. Sokirkina, Yu. N. Morgunov, P. S. Petrov

{"title":"Study on Arrival Times of Pulse Signals in the Case of Shallow-to-Deep Propagation in Waveguides of the Sea of Japan","authors":"M. A. Sorokin, A. A. Golov, S. S. Shkramada, A. Ch. Guzovskaya, P. D. Tkachenko, D. V. Sokirkina, Yu. N. Morgunov, P. S. Petrov","doi":"10.1134/S1063771025600639","DOIUrl":"10.1134/S1063771025600639","url":null,"abstract":"<p>The study presents the results of a field experiment conducted in August 2023 in the Sea of Japan on the transmission and reception of pulsed acoustic signals in a “shallow-to-deep” scenario. The experimental track consists of the shallow-water and the deep-sea parts of nearly equal length. The results of mathematical modeling of pulsed signal propagation along the track are discussed, the modal structure of the field in the waveguide is described, and theoretical estimates of the arrival times of the modal components of the acoustic signal are obtained. The formation of two separated in time beams of low-order mode components is observed and explained. This phenomenon is related both to the configuration of the waveguide divided into approximately equal shallow and deep parts, and to the acoustic track orientation at an acute angle to the depth gradient, which creates conditions for the occurrence of horizontal refraction. The comparison of the impulse response functions obtained during the experiment and the theoretical arrival-time estimates indicates that a distinctive feature of acoustic tracks of this type is the splitting of the main peak of the waveguide pulse response, and the appearance of two separate maxima.</p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 6","pages":"890 - 899"},"PeriodicalIF":1.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147617988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vertical Antenna Gain in a Shallow-Water Waveguide with Fluctuating Parameters 具有波动参数的浅水波导垂直天线增益

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2026-04-06 DOI: 10.1134/S106377102560041X

M. A. Raevski, V. G. Burdukovskaya

{"title":"Vertical Antenna Gain in a Shallow-Water Waveguide with Fluctuating Parameters","authors":"M. A. Raevski, V. G. Burdukovskaya","doi":"10.1134/S106377102560041X","DOIUrl":"10.1134/S106377102560041X","url":null,"abstract":"<div><p>The article presents the results of a theoretical study of the effect of random internal waves and wind waves on the gain of a vertical antenna array (AA) in shallow water. An algorithm is proposed for calculating the correlation matrix of the signal at the AA aperture under conditions of the combined effect of the background of internal waves and surface waves, using the separation of fluctuations of acoustic modes into high- and low-frequency components. This takes into account intermode correlations, that is, the interference structure of the acoustic field in the waveguide. For a waveguide with summer hydrology, a numerical modeling of the vertical function of signal coherence and the gain of the AA depending on its distance from the source has been performed. At the same time, for comparison, various methods of spatial signal processing are used: the PHAR method and optimal algorithms (linear and quadratic). The influence of the background of internal waves on the AA gain coefficient as a function of the acoustic parameters of the seabed, is discussed. The results of numerical modeling the gain of a vertical AA under the combined influence of the background of internal waves and wind waves are also analyzed.</p></div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 5","pages":"744 - 754"},"PeriodicalIF":1.2,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147617996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0