Archives of Acoustics最新文献_第4页

Application of EMD ANN and DNN for Self-Aligning Bearing Fault Diagnosis EMD神经网络和深度神经网络在自调心轴承故障诊断中的应用

4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-26 DOI: during daytime. 10.24425/122364

Narendiranath Babu Thamba, Arun Aravind, Abhishek Rakesh, Mohamed Jahzan, D Rama Prabha

引用次数: 2

Comparative Analysis of Classifiers for the Assessment of Respiratory Disorders Using Speech Parameters 利用语音参数评估呼吸系统疾病的分类器比较分析

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142905

Poonam Shrivastava, N. Tripathi, Bhupesh Kumar

{"title":"Comparative Analysis of Classifiers for the Assessment of Respiratory Disorders Using Speech Parameters","authors":"Poonam Shrivastava, N. Tripathi, Bhupesh Kumar","doi":"10.24425/aoa.2022.142905","DOIUrl":"https://doi.org/10.24425/aoa.2022.142905","url":null,"abstract":"Non-invasive techniques for the assessment of respiratory disorders have gained increased importance in recent years due to the complexity of conventional methods. In the assessment of respiratory disorders, machine learning may play a very essential role. Respiratory disorders lead to variation in the production of speech as both go hand in hand. Thus, speech analysis can be a useful means for the pre-diagnosis of respiratory disorders. This article aims to develop a machine learning approach to diﬀerentiate healthy speech from speech corresponding to diﬀerent respiratory disorders (aﬀected). Thus, in the present work, a set of 15 relevant and eﬃcient features were extracted from acquired data, and classiﬁcation was done using diﬀerent classiﬁers for healthy and aﬀected speech. To assess the performance of diﬀerent classiﬁers, accuracy, speciﬁcity (Sp), sensitivity (Se), and area under the receiver operating characteristic curve (AUC) was used by applying both multi-fold cross-validation methods (5-fold and 10-fold) and the holdout method. Out of the studied classiﬁers, decision tree, support vector machine (SVM), and k-nearest neighbor (KNN) were found more appropriate in providing correct assessment clinically while considering 15 features as well as three signiﬁcant features (Se > 89%, Sp > 89%, AUC > 82%, and accuracy > 99%). The conclusion was that the proposed classiﬁers may provide an aid in the simple assessment of respiratory disorders utilising speech parameters with high eﬃciency. In the future, the proposed approach can be evaluated for the detection of speciﬁc respiratory disorders such as asthma, COPD, etc.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":"80 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139357198","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

50th Jubilee Winter School on Wave and Quantum Acoustics XLIXth Winter School on Environmental Acoustics and Vibroacoustics Szczyrk, Poland, 28 February – 3/4 March, 2022 第50届环境声学和振动声学冬季学校，波兰什日尔克，2022年2月28日至3月3日至4日

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.141658

Edward, Justyna, Bertrand, Grzegorz, Anna, Rafał, Sławomir, Marzena

引用次数: 0

Calculation for Acoustic Radiation Force from Rectangular Weakly Focusing Transducer Using the Ray Acoustic Model 用射线声模型计算矩形弱聚焦换能器的声辐射力

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.140734

Yun Lili, Shuchang Qiao, W. Shou, Li Junhua

引用次数: 0

Using SVM Classifier and Micro-Doppler Signature for Automatic Recognition of Sonar Targets 基于SVM分类器和微多普勒特征的声纳目标自动识别

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142909

A. Saffari, S. Zahiri, Navid Khozein Ghanad

{"title":"Using SVM Classifier and Micro-Doppler Signature for Automatic Recognition of Sonar Targets","authors":"A. Saffari, S. Zahiri, Navid Khozein Ghanad","doi":"10.24425/aoa.2022.142909","DOIUrl":"https://doi.org/10.24425/aoa.2022.142909","url":null,"abstract":"In this paper, we propose using a propeller modulation on the transmitted signal (called sonar micro-Doppler) and diﬀerent support vector machine (SVM) kernels for automatic recognition of moving sonar targets. In general, the main challenge for researchers and craftsmen working in the ﬁeld of sonar target recognition is the lack of access to a valid and comprehensive database. Therefore, using a comprehensive mathematical model to simulate the signal received from the target can respond to this challenge. The mathematical model used in this paper simulates the return signal of moving sonar targets well. The resulting signals have unique properties and are known as frequency signatures. However, to reduce the complexity of the model, the 128-point fast Fourier transform (FFT) is used. The selected SVM classiﬁcation is the most popular machine learning algorithm with three main kernel functions: RBF kernel, linear kernel, and polynomial kernel tested. The accuracy of correctly recognizing targets for diﬀerent signal-to-noise ratios (SNR) and diﬀerent viewing angles was assessed. Accuracy detection of targets for diﬀerent SNRs ( − 20, − 15, − 10, − 5, 0, 5, 10, 15, 20) and diﬀerent viewing angles (10, 20, 30, 40, 50, 60, 70, 80) is evaluated. For a more fair comparison, multilayer perceptron neural network with two back-propagation (MLP-BP) training methods and gray wolf optimization (MLP-GWO) algorithm were used. But unfortunately, considering the number of classes, its performance was not satisfactory. The results showed that the RBF kernel is more capable for high SNRs (SNR = 20, viewing angle = 10) with an accuracy of 98.528%.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45508240","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: 1

Research on the Acoustic Scattering Characteristics of Multi-Sections Conning Tower Geometries in Monostatic Configuration 单稳态结构下多截面连接塔几何结构的声散射特性研究

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142005

Lin-Jiang Han, Hao Song, Chang-Xiong Chen, Xirui Peng, Z. Peng

{"title":"Research on the Acoustic Scattering Characteristics of Multi-Sections Conning Tower Geometries in Monostatic Configuration","authors":"Lin-Jiang Han, Hao Song, Chang-Xiong Chen, Xirui Peng, Z. Peng","doi":"10.24425/aoa.2022.142005","DOIUrl":"https://doi.org/10.24425/aoa.2022.142005","url":null,"abstract":"The overall acoustic echo of a submarine is greatly dependent on the conning tower. For enhancing the acoustic stealth performance of a submarine, it is necessary to research an innovative design scheme of the conning tower to reduce its target strength (TS). The aim of this work is to reduce the TS of a conning tower by varying its geometry and streamlining. The accuracy in modelling the acoustic scattering of a conning tower using the Kirchhoﬀ approximation (KA) was validated, compared with ﬁnite element analysis (FEA). Several angular conning tower geometries were designed to analyze the eﬀect of streamlining and the number of lateral facets on TS using the KA method. In consideration of the actual situation, the acoustic eﬀect of backing medium was analyzed by compared water-ﬁlled elastic hulls with rigid hulls. From the observed TS calculation results, it is shown that the non-streamlined four lateral-facet conning tower geometries are optimal for acoustic stealth performance during the range of incidence angles from − 10 ○ to 10 ○ , whereas the streamlined versions have better performance at incidence angles beyond this range. Furthermore, elastic hulls and rigid hulls provide similar spatial distribution regularities in monostatic conﬁguration with the rigidity aﬀecting the magnitude of the TS.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45071009","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 Response of an Isotropic Beam Under Axially Variable Loads Using Ritz and Rayleigh Integral Methods 用Ritz和Rayleigh积分方法研究各向同性梁在轴向变载荷作用下的声学响应

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.140736

Somi Naidu, J. Pitchaimani, Lenin Babu Mailan, V. S. N. Reddi

引用次数: 0

Analysis of the influencing factors of the acoustic performance of the muffler considering acoustic structural coupling 考虑声-结构耦合的消声器声学性能影响因素分析

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142900

Bo Zhao, Li He

{"title":"Analysis of the influencing factors of the acoustic performance of the muffler considering acoustic structural coupling","authors":"Bo Zhao, Li He","doi":"10.24425/aoa.2022.142900","DOIUrl":"https://doi.org/10.24425/aoa.2022.142900","url":null,"abstract":"In the calculation of the acoustic performance of muﬄers, the walls of muﬄers are usually treated rigidly without considering the acoustic-structural coupling, but the results so calculated diﬀer signiﬁcantly from the actual situation. Based on the basic equations, the article derives the ﬁnite element equations of the muf-ﬂer system while considering the acoustic-structural coupling eﬀect and theoretically analyses the connection between the acoustic-structural coupling system and the structural and acoustic modes. The structural and acoustic modes of the muﬄer are calculated and the reasons for the mutation of the transmission loss curve of the muﬄer when the acoustic-structural coupling is considered are analysed. The results show that the acoustic-structural coupling is the result of the interaction between the structure and the air inside the expansion chamber under acoustic excitation, which manifests mutations in the sound pressure inside the muﬄer in some frequency bands. Then, using a single-chamber muﬄer as an example, the transmission loss is used to characterise the performance of the muﬄer. The eﬀects of diﬀerent factors such as shell thickness, structure, porous media material lining, and restraint method on the acoustic-structural coupling eﬀect of the muﬄer are analysed, and the structure of a double-chamber muﬄer is successfully optimised according to the conclusions.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":"161 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68945470","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 Honeycomb Based Graded Metamaterial Muffler with Broadband Sound Attenuation and Load Bearing Performances 一种具有宽频带消声和承载性能的蜂窝分级超材料消声器

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.141651

Li Gen, Yan Chen

引用次数: 1

New Surface-Plasmon-Polariton-Like Acoustic Surface Waves at the Interface Between Two Semi-Infinite Media 两种半无限介质界面上的新型表面等离子体类极化声表面波

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142010

Piotr Kiełczyński

{"title":"New Surface-Plasmon-Polariton-Like Acoustic Surface Waves at the Interface Between Two Semi-Infinite Media","authors":"Piotr Kiełczyński","doi":"10.24425/aoa.2022.142010","DOIUrl":"https://doi.org/10.24425/aoa.2022.142010","url":null,"abstract":"This paper presents theory of new shear horizontal (SH) acoustic surface waves that propagate along the interface of two semi-inﬁnite elastic half-spaces, one of which is a conventional elastic medium and a second one an elastic metamaterial with a negative and frequency dependent shear elastic compliance. This new surface waves have only one transverse component of mechanical displacement, which has a maximum at the interface and decays exponentially with distance from the interface. Similar features are also shown by the acoustic shear horizontal Maerfeld-Tournois surface waves propagating at the interface of two semi-inﬁnite elastic media due to the piezoelectric eﬀect that should occur in at least one semi-space. The proposed new shear horizontal acoustic surface waves exhibit also strong formal similarities with the electromagnetic surface waves of the surface plasmon polariton (SPP) type, propagating along a metal-dielectric planar interface. In fact, the new shear horizontal elastic surface waves possess a large number of properties that are inherent for the SPP electromagnetic surface waves, such as strong subwavelength concentration of the wave ﬁeld in the proximity of the guiding interface, low phase and group velocity etc. As a result, the new shear horizontal acoustic surface waves can ﬁnd applications in sensors with extremely high sensitivity, employed in measurements of various physical parameters, such as viscosity of liquids, as well as in biosensors, chemosensors, or a near ﬁeld acoustic microscopy (subwavelength imaging) and miniaturized devices of microwave acoustics.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47563249","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: 1