Acoustical Physics最新文献_第8页

Influence of the Nonlinear Operating Mode of Acoustic Liners at High Sound Pressure Levels on Sound Wave Propagation in a Cylindrical Duct with a Flow 声衬垫在高声压级下的非线性工作模式对带流圆柱形管道中声波传播的影响

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023600481

V. V. Bashkatov, N. N. Ostrikov

{"title":"Influence of the Nonlinear Operating Mode of Acoustic Liners at High Sound Pressure Levels on Sound Wave Propagation in a Cylindrical Duct with a Flow","authors":"V. V. Bashkatov, N. N. Ostrikov","doi":"10.1134/S1063771023600481","DOIUrl":"10.1134/S1063771023600481","url":null,"abstract":"<div><p>The problem of sound propagation in a cylindrical duct with a uniform flow is considered with nonlinear impedance boundary conditions resulting from the dependence of the impedance of acoustic liners on the sound pressure level. An iterative procedure for solving this problem has been constructed, in which sound propagation is described by an asymptotic solution to the problem of the propagation of sound modes in a cylindrical duct with a uniform flow with a smoothly non-uniform impedance of the walls in the axial direction, and the nonlinear mode of operation of the liners is based on a semiempirical model of a two-layer acoustic liners. It is shown that the constructed iterative algorithm converges within the limits of applicability of the asymptotic solution and diverges beyond them. It is shown that, for the parameters with which the calculations were carried out, the nonlinear effect of the liners operation leads to an increase in sound attenuation compared to a linear solution of a similar problem, and this effect is when sound propagates along rather than against the flow.</p></div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 1","pages":"9 - 20"},"PeriodicalIF":0.9,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140886310","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

On the Sound Speed in Multiphase Systems 关于多相系统中的声速

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023601437

S. O. Gladkov

引用次数: 0

Simulation of Ultrasonic Tools for Cutting Honeycomb Panels Made of Aluminum and Aramid (Kevlar) 用于切割铝和芳纶（凯夫拉）蜂窝板的超声波工具仿真

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023601139

A. A. Vjuginova, S. N. Vjuginov, A. A. Novik

引用次数: 0

Analysis of the Vibrational Process Inside an Acoustic Interference Array Using the Reverberation Matrix Method 利用混响矩阵法分析声学干涉阵列内部的振动过程

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771022600632

A. O. Subbotkin

引用次数: 0

Electronic Focus Steering Capabilities of a Diagnostic-Type Linear Ultrasound Array Designed for High Power Therapy and Its Visualization 专为大功率治疗设计的诊断型线性超声阵列的电子聚焦转向功能及其可视化

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023601292

F. A. Nartov, R. P. Williams, V. A. Khokhlova

{"title":"Electronic Focus Steering Capabilities of a Diagnostic-Type Linear Ultrasound Array Designed for High Power Therapy and Its Visualization","authors":"F. A. Nartov, R. P. Williams, V. A. Khokhlova","doi":"10.1134/S1063771023601292","DOIUrl":"10.1134/S1063771023601292","url":null,"abstract":"<p>The focus steering capabilities of a 1 MHz linear phased array transducer (64 rectangular elements, 14.8 × 51.2 mm aperture) intended for drug delivery applications in abdominal organs were assessed and compared with its design-stage computer model. Acoustic fields generated by the transducer and predicted by the models of an ideal array with uniformly vibrating elements and either a plane or a cylindrically focused surface were simulated using the Rayleigh integral and angular spectrum methods. The boundary conditions for the transducer were reconstructed from acoustic holography measurements performed for selected focusing configurations of the array and also synthesized from holography data measured for each of its individual elements. It was shown that the transducer field with electronic focus steering can be accurately synthesized based on the holography data of its elements, which significantly simplified acoustic field characterization. Variability of the power and directivity patterns of the array elements were analyzed. A twofold smaller range of electronic steering in the transverse direction for the transducer compared to its computer model is discussed.</p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 1","pages":"165 - 174"},"PeriodicalIF":0.9,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1063771023601292.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Traveling Surface Acoustic Wave Induced Removal of NSB Proteins from the Acoustic Biosensor 行进表面声波诱导去除声学生物传感器中的 NSB 蛋白质

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023600432

Y. Wang, C. Chen

{"title":"Traveling Surface Acoustic Wave Induced Removal of NSB Proteins from the Acoustic Biosensor","authors":"Y. Wang, C. Chen","doi":"10.1134/S1063771023600432","DOIUrl":"10.1134/S1063771023600432","url":null,"abstract":"<p>One challenge of current biosensors is to remove non-specifically bound (NSB). Surface acoustic wave (SAW) technology, because of its non-contact and non-marker characteristics, becomes one of the hot research fields and shows great prospects. In this paper, SAW is used to remove NSB. Firstly, the effect of the cut of the piezoelectric material on the removal force is determined based on the dispersion equation of the acoustic wave and the properties of the piezoelectric material. Secondly, the effects of channel height, excitation voltage and fluid medium temperature on the removal process are verified through theoretical calculations. The results show that the SAW force, lift force and drag force induce by the SAW can effectively remove the NSB, among which, SAW force mainly removes the nonspecifically bound from sensor surface, while the lift force and drag force mainly prevent the re-deposition of the removed NSB. Finally, the optimal region where NSB can be removed effectively by SAW is determined by comparing the SAW force and van der Waals force. When the sensing region is located in the optimal region, not only can the NSB be effectively removed, but also the performance of the sensor is guaranteed.</p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 1","pages":"90 - 104"},"PeriodicalIF":0.9,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140884087","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

Estimating the Azimuth of Acoustic Emission Source in Concrete Plate-Like Structures using a Non-Contact Sensor Unit 使用非接触式传感器装置估算混凝土板状结构中声波发射源的方位角

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023601012

Yunshan Bai, Yuanxue Liu, Guangjian Gao, Dandan Cui, Han Chen

{"title":"Estimating the Azimuth of Acoustic Emission Source in Concrete Plate-Like Structures using a Non-Contact Sensor Unit","authors":"Yunshan Bai, Yuanxue Liu, Guangjian Gao, Dandan Cui, Han Chen","doi":"10.1134/S1063771023601012","DOIUrl":"10.1134/S1063771023601012","url":null,"abstract":"<p>Location of damage sources is an important aspect of structural health monitoring research. Acoustic emission (AE) technology is broadly concerned due to its potential advantages in damage monitoring and source localization. However, the traditional positioning method is based on the arrival of <i>P</i> wave, and the non-uniformity of concrete materials is not considered, resulting in poor accuracy at large distances. This paper describes a non-contact AE localization method using leaky Rayleigh waves via a new air-coupled MEMS microphones array unit. Compared with traditional contact detection, this method is convenient for rapid setup and monitoring in a wider range. The feasibility of the non-contact AE localization method was verified by numerical simulation and experiments. Azimuth (direction of arrival) of AE source is a key source parameter for damage location. The research shows that this method can determine the azimuth of AE source at different positions, the results are close to the actual coordinates. Non-contact monitoring method proposed in this paper is the basis for further research on the failure prediction of concrete plate-like structures such as tunnel lining and bridge deck<i>.</i></p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 1","pages":"130 - 142"},"PeriodicalIF":0.9,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883521","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

Hot-Wire-Based Estimation of Pressure Fluctuations in the Near Field of a Jet in the Presence of a Coflow 基于热线的同流情况下喷气近场压力波动估计

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023600286

O. P. Bychkov, G. A. Faranosov

引用次数: 0

Interference Invariants in Hydroacoustic Field Maxima in Deep Water 深水水声场最大值的干扰不变性

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023600523

S. P. Aksenov, G. N. Kuznetsov

{"title":"Interference Invariants in Hydroacoustic Field Maxima in Deep Water","authors":"S. P. Aksenov, G. N. Kuznetsov","doi":"10.1134/S1063771023600523","DOIUrl":"10.1134/S1063771023600523","url":null,"abstract":"<div><p>Chuprov’s interference invariant (II) well describes the properties of a sound field in shallow water. However, the question of how applicable Chuprov’s II concept is to deep water, where the patterns of sound field decay with distance are more complex has been insufficiently studied. Therefore, the authors studied the II properties in the near and far fields of acoustic illumination, as well as in the shadow zone. A new definition of the invariant was proposed and studied, and its characteristics were compared with Chuprov’s II as a function of distance, reception and emission depths, and summer or winter propagation conditions. The new invariant is called the phase-energy invariant (PEI), since orthogonal components of the phase gradient are used to describe the spatial sound energy distribution. The stability of the new invariant, its independence on different influencing factors, and its natural change with distance from zero to one are shown. It has been established that in winter conditions, at almost all distances, the PEI is equal to unity, and the II does not have stable values and varies jumpwise over a very wide range. In summer conditions, in the shadow zone, with increasing distance, the PEI increases, just like the II, from close to zero to one. In the near and far fields of acoustic illumination, the PEI is approximately equal to unity, and the II in these zones, both in summer and winter, is characterized by unlimited oscillations, caused by division by a value close to zero. It is shown that the definition of PEI is valid both in single-mode waveguides and in free unbounded space with a dispersive medium.</p></div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"70 1","pages":"105 - 115"},"PeriodicalIF":0.9,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140883639","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

Voice Identity Recognition Based on the Parameters of the Spectral Voice Source Model 基于频谱声源模型参数的语音身份识别

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2024-05-07 DOI: 10.1134/S1063771023601462

I. S. Makarov, D. S. Osipov

引用次数: 0