Acoustical Physics最新文献_第5页

Nonlinear Periodic Waves in a Deformable Medium Modeled by Chains of Active Morse–van der Pol Particles 由莫尔斯-范德波尔粒子链模拟的可变形介质中的非线性周期波

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-05-21 DOI: 10.1134/S1063771024602292

A. I. Zemlyanukhin, A. V. Bochkarev, V. I. Erofeev, I. S. Pavlov

引用次数: 0

Nonlinear Formation of Low-Frequency Field by Diffracting High-Frequency Wave Beams 高频波束衍射低频场的非线性形成

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-05-21 DOI: 10.1134/S1063771025600123

O. V. Rudenko

引用次数: 0

Examination of Broadband Low-Frequency Emitters in a Study of Temperature Regimes in the Sea of Japan 在日本海温度状态研究中宽带低频发射器的检验

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-05-21 DOI: 10.1134/S1063771024602498

B. N. Bogolyubov, A. K. Britenkov, D. A. Kasyanov, V. A. Farfel, Yu. N. Morgunov, V. V. Besotvetnykh, E. A. Voitenko, A. A Golov, A. A. Tagiltsev

{"title":"Examination of Broadband Low-Frequency Emitters in a Study of Temperature Regimes in the Sea of Japan","authors":"B. N. Bogolyubov, A. K. Britenkov, D. A. Kasyanov, V. A. Farfel, Yu. N. Morgunov, V. V. Besotvetnykh, E. A. Voitenko, A. A Golov, A. A. Tagiltsev","doi":"10.1134/S1063771024602498","DOIUrl":"10.1134/S1063771024602498","url":null,"abstract":"<div>The article considers the use of technical tools and methods of low-frequency hydroacoustics for monitoring the variability of average temperatures of underwater sound channels in the Sea of Japan. The authors review the characteristics of the line of powerful interpiston hydroacoustic emitters developed by the Institute of Applied Physics of the Russian Academy of Sciences, which are promising for organizing long acoustic tracks. The results of measuring the electroacoustic characteristics of low-frequency hydroacoustic emitters under natural conditions at depths of up to 150 m are presented, and the use of these emitters for studying the temperature regimes of associated underwater sound channels of the shelf and deep sea on multiscale long tracks in the Sea of Japan is also considered. Based on processing of experimental data on an acoustic path with a length of about 1000 km, obtained in 2022, examples are presented of reconstructing the average water temperature values from data on the sound speed along the acoustic path; the sensitivity of the method is assessed, and the signal-to-noise ratio values achieved in the experiment are analyzed.</div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 1","pages":"50 - 61"},"PeriodicalIF":1.2,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122206","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

Propagation and Scattering of Acoustic Waves in Suspensions Containing Particles with a Rotational Degree of Freedom 声波在含旋转自由度粒子悬浮液中的传播和散射

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-05-21 DOI: 10.1134/S1063771025600056

I. N. Didenkulov

引用次数: 0

Study of Shallow-Water Reverberation Spectra with Spatially Offset Signal Transmission and Reception Points 空间偏置信号发射点和接收点的浅水混响频谱研究

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-05-21 DOI: 10.1134/S1063771024602188

B. M. Salin, V. V. Bakhanov, O. N. Kemarskaya, M. B. Salin

{"title":"Study of Shallow-Water Reverberation Spectra with Spatially Offset Signal Transmission and Reception Points","authors":"B. M. Salin, V. V. Bakhanov, O. N. Kemarskaya, M. B. Salin","doi":"10.1134/S1063771024602188","DOIUrl":"10.1134/S1063771024602188","url":null,"abstract":"<div>In this article, we study the characteristics of reverberation interference that occurs in a marine environment when long tonal pulses are emmited and scattered signals are recorded using the so-called bistatic scheme, i.e., when the receiver is located a large distance from the transducer. Probing of the water area with tonal pulses is carried out with the necessary resolution to study both the Doppler spectrum, and temporal development of the reverberation signal is achieved by selecting the proper pulse length. The presented theoretical model is applicable to both the direct and inverse problems, which are forecasting the characteristics of reverberation for a given sea state and determining the properties of the marine environment, mainly its near-surface layer, based on the results of acoustic sounding. The model represents a scattered signal as the superposition of reflections from scatterers, which are distributed along the depth and move along circular trajectories. Their speeds are determined by the maximum amplitude and period of wind waves. The article continues a series of studies and generalizes the previous results to the conditions of significantly spatially offset sound sources and receivers. The modeling results are confirmed by experimental data, involving such parameters as the width of the Doppler spectrum and law of decay of reverberation intensity over time.</div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 1","pages":"101 - 111"},"PeriodicalIF":1.2,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145122218","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

A Semi-Analytical Approach for Analyzing Acoustic Wave Propagation in Three-Dimensional Hexagonal FGM Pipes 三维六边形FGM管道中声波传播的半解析方法

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2025-03-07 DOI: 10.1134/S106377102360119X

R. Raghib, I. Naciri, H. Khalfi, L. Elmaimouni, J. Yu, A. Benami, A. Bybi

{"title":"A Semi-Analytical Approach for Analyzing Acoustic Wave Propagation in Three-Dimensional Hexagonal FGM Pipes","authors":"R. Raghib, I. Naciri, H. Khalfi, L. Elmaimouni, J. Yu, A. Benami, A. Bybi","doi":"10.1134/S106377102360119X","DOIUrl":"10.1134/S106377102360119X","url":null,"abstract":"This study presents a semi-analytical approach for analyzing acoustic wave propagation in three-dimensional hexagonal functionally graded (FGM) pipes composed of Aluminum (Al) and silicon nitride (SN), employing the Legendre polynomial method. Two different configurations of FGM pipes, namely (SN/Al/SN) and (Al/SN/Al), are investigated by solving the governing motion equations. The characteristics of phase velocity and normalized frequency dispersion curves for various modes and frequencies are analyzed, revealing the complex wave behavior arising from the hexagonal structure. The study examines the effects of material gradients, pipe geometry, and boundary conditions, highlighting the strong influence of normal stresses on boundary conditions. Additionally, the distribution of acoustic wave energy is found to be mainly confined to the interior of the cylinder. Our results demonstrate a high level of agreement with existing research, affirming the precision and reliability of our method. The Legendre polynomial method accurately captures wave propagation in functionally graded pipes, offering a versatile approach applicable to various structures. These findings provide valuable insights into acoustic wave behavior in functionally graded pipes, with potential applications in non-destructive testing, material characterization, and structural health monitoring.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 6","pages":"919 - 932"},"PeriodicalIF":0.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571127","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

Application of a Piezoelectric Resonator for Reconstructing the Parameters of a Contacting Liquid 压电谐振器在接触液体参数重建中的应用

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2025-03-07 DOI: 10.1134/S106377102460205X

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

引用次数: 0

Acoustic Radiation of a Turbulent Boundary Layer Over a Flat Smooth Boundary 平坦光滑边界上湍流边界层的声辐射

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2025-03-07 DOI: 10.1134/S1063771024603133

I. V. Belyaev, V. F. Kopiev, M. A. Mironov

引用次数: 0

Waves in a Heavy Stratified Gas: Splitting Into Acoustic and Gravity Waves Subproblems 重层状气体中的波：分裂成声波和重力波子问题

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2025-03-07 DOI: 10.1134/S1063771024601833

S. P. Kshevetskii, Y. A. Kurdyaeva, N. M. Gavrilov

{"title":"Waves in a Heavy Stratified Gas: Splitting Into Acoustic and Gravity Waves Subproblems","authors":"S. P. Kshevetskii, Y. A. Kurdyaeva, N. M. Gavrilov","doi":"10.1134/S1063771024601833","DOIUrl":"10.1134/S1063771024601833","url":null,"abstract":"<div>Two-dimensional linearized hydrodynamic equations describing wave propagation in a stratified heavy gas are considered. The hydrodynamic equation system is reformulated as a single Schrödinger type operator equation. Waves with (beta = frac{{{{l}_{z}}}}{{{{l}_{x}}}} ll 1) are considered, where ({{l}_{z}}) and ({{l}_{x}}) are the characteristic vertical and horizontal scales, respectively, and study the asymptotic behavior of solutions as (beta to 0). It is shown that the set of solutions depending on (beta ) form two disjoint classes. For solutions from each of the selected classes, its own, asymptotic as (beta to 0) , approximate equation system is proposed. The selected classes of solutions are acoustic and internal gravity waves. It is shown that the hydrodynamic variables of acoustic and gravity waves are related by certain stationary relationships, different for each class. This makes it possible to formulate the problem of separating the contributions of acoustic and gravity waves in the initial condition. The existence of a solution to this wave separation problem is shown. Examples of solving the problem of dividing the general problem into subproblems on the propagation of acoustic and gravity waves are given. Estimates for the division of the energy of the initial perturbation by wave type are obtained.</div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 6","pages":"1012 - 1026"},"PeriodicalIF":0.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571005","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

Features of Laser-Induced Thermocavitation of Water 激光诱导水热空化的特征

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2025-03-07 DOI: 10.1134/S1063771024601894

V. I. Yusupov

{"title":"Features of Laser-Induced Thermocavitation of Water","authors":"V. I. Yusupov","doi":"10.1134/S1063771024601894","DOIUrl":"10.1134/S1063771024601894","url":null,"abstract":"The features of thermocavitation of water near a fiber tip under its heating by continuous laser radiation at a wavelength of 1.94 μm have been studied. Dynamic processes have been studied using optical and acoustic methods. It has been established that the pressure pulses at the initial section of thermocavitation determined by the explosive boiling of water are significantly lower compared to the pressure pulses during the collapse of vapor-gas bubbles. The spectrum of a generated acoustic signal extends over 10 MHz, while the spectral distributions of the lowest frequency and highest frequency fluctuations are described by the 1/f law. It has been shown that the peak powers of the pressure pulses in individual instances of thermocavitation are related to their repetition rates by the dependence ~1/f1.4. Wavelet analysis shows that in the course of thermocavitation, an alternation of “random” and “cascade” processes is observed. In a special acoustic experiment, it has been found that at the initial stage of thermocavitation, the pressure rise occurs within approximately 250 ns. The relatively long increase in pressure is explained by the fact that explosive boiling occurs at many points in the volume of a superheated liquid, and the chain reaction of the sequential appearance of critical nuclei is determined by the propagation of shock waves.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 6","pages":"957 - 965"},"PeriodicalIF":0.9,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571130","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