Applied Acoustics最新文献_第10页

Development and validation of a 2D Mason model for ultrasonic transducer arrays: A simplified approach simulating crosstalk and dissipation mechanisms 超声换能器阵列二维Mason模型的开发和验证：一种模拟串扰和耗散机制的简化方法

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-06 DOI: 10.1016/j.apacoust.2025.110991

Anouar Boujenoui , Abdelmajid Bybi , Hayat Reskal , Hassna Khalfi , Lahoucine Elmaimouni , Anne Christine Hladky-Hennion

{"title":"Development and validation of a 2D Mason model for ultrasonic transducer arrays: A simplified approach simulating crosstalk and dissipation mechanisms","authors":"Anouar Boujenoui , Abdelmajid Bybi , Hayat Reskal , Hassna Khalfi , Lahoucine Elmaimouni , Anne Christine Hladky-Hennion","doi":"10.1016/j.apacoust.2025.110991","DOIUrl":"10.1016/j.apacoust.2025.110991","url":null,"abstract":"<div><div>Piezoelectric elements arranged in 1D or 2D configurations are commonly used in ultrasonic transducer arrays for medical imaging and non-destructive testing (NDT) applications. These arrays are usually modeled using complex 2D or 3D numerical methods. Based on the equivalent circuit approach previously developed in our paper One-dimensional equivalent circuit for ultrasonic transducer arrays” (Bybi. et al. Applied Acoustics 2019) [<span><span>1</span></span>], this work proposes a novel and accurate two-dimensional equivalent circuit to model and simulate the electromechanical behavior of piezoelectric transducer arrays. The model consists of a lossy 2D Mason circuit taking into account the width and thickness modes and also the modes coupling, the crosstalk phenomenon, and various dissipation mechanisms, including dielectric, piezoelectric, and mechanical losses. The model is tested on a fabricated seven elements transducer array made of PZ27 and its results (electrical impedance, displacement, and crosstalk curves) are validated by comparison with experimental data. A good agreement is obtained between simulation results and measurements, confirming the validity of the model. Key advantages of the proposed model include its simplicity, ease of implementation, and a significant reduction in computation time compared to traditional numerical methods. Furthermore, this approach allows for the analysis of the crosstalk between array elements without the need for expensive experiments, such as laser vibrometer displacement measurements. Finally, the model will be extended to a 64-element piezoelectric array, with individual matching layers, backing, and its associated electronics, to deepen the study of the crosstalk phenomenon and propose solutions to reduce it.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110991"},"PeriodicalIF":3.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Estimation of acoustic test fixture tilting compensation in front of high-level impulsive sounds 高强度脉冲声前声学测试夹具倾斜补偿估计

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-06 DOI: 10.1016/j.apacoust.2025.110988

Cyril Blondé-Weinmann, Sébastien De Mezzo, Jonas Wendling-Bandelier, Pascal Hamery

{"title":"Estimation of acoustic test fixture tilting compensation in front of high-level impulsive sounds","authors":"Cyril Blondé-Weinmann, Sébastien De Mezzo, Jonas Wendling-Bandelier, Pascal Hamery","doi":"10.1016/j.apacoust.2025.110988","DOIUrl":"10.1016/j.apacoust.2025.110988","url":null,"abstract":"<div><div>Acoustic Test Fixtures (ATFs) are widely used to evaluate the performance of Hearing Protection Devices (HPDs) against high-level impulsive sounds. The attenuation conferred by HPDs is partially limited by inertial and compressive transmissions, which could manifest as earmuff or earplug movements. The external longitudinal displacements of an earplug inserted in the ear canal of an ATF have previously been measured using a laser Doppler vibrometer in order to correlate them with the protected ear canal acoustic pressure. However, at high impulsive levels, a tilting motion of the ATF can combine with the earplug's displacements. To quantify this effect and assess its impact on the earplug displacements measurements, the displacements of a modified ATF across levels ranging from 156 to 180 dB peak have been evaluated using two different sensors. First, the protocol employing a laser-vibrometer to assess earplug displacement has been replicated. Second, an accelerometer combined with various signal processing techniques has been tested. Both sensors consistently detected the tilting motion of the ATF, with peak displacement amplitudes ranging in average from 1 μm at 156 dB peak to 100 μm at 180 dB peak. These results demonstrate that the maximum amplitude of ATF displacement increases exponentially with impulse peak level. However, due to a time delay in the occurrence of this phenomenon, limited to no compensation for ATF tilting is required. These findings support an enhanced experimental protocol for investigating transmission characteristics of HPDs when evaluated with an ATF exposed to high-level impulsive sounds.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110988"},"PeriodicalIF":3.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Detection of crack defects in L-shaped R-zone components based on multi-mode total focusing method (MTFM) 基于多模全聚焦法（MTFM）的l型r区构件裂纹缺陷检测

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-06 DOI: 10.1016/j.apacoust.2025.110980

Wentao Li , Huanglang Liang

{"title":"Detection of crack defects in L-shaped R-zone components based on multi-mode total focusing method (MTFM)","authors":"Wentao Li , Huanglang Liang","doi":"10.1016/j.apacoust.2025.110980","DOIUrl":"10.1016/j.apacoust.2025.110980","url":null,"abstract":"<div><div>Traditional full matrix capture (FMC) based total focusing method (TFM) exhibits advantages in detecting pore-like and slag inclusion-like non-oriented defects. However, this method demonstrates major limitations in crack defect detection within curved components. Due to the complex geometry of the R-zone and the variable orientation characteristics of crack defects, a multi-mode total focusing method (MTFM) imaging based on defect orientation features is proposed. The optimal acoustic paths and time-of-flight (TOF) data for the MTFM were determined through the development of a multi-parameter path selection model based on Snell’s law and Fermat’s principle. This approach effectively mitigated scattering interference from the curved surface and maintained a favorable angle of incidence with respect to the defects. For L-shaped components with 20 mm thickness, 10 mm inner diameter, and 30 mm outer diameter containing R-zone cracks at −30°, 0°, and 30° orientations, both MTFM imaging simulations and experimental results demonstrate significant variations in the algorithm’s sensitivity to defects at different angles. The detection of 2 mm by 8 mm crack defects with three different orientation angles was achieved, with a defect localization error of ≤ ±5 mm. The defect signal-to-noise ratio (DSNR) consistently exceeded the 6 dB requirement of core aviation standards.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110980"},"PeriodicalIF":3.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Cascaded variable step LMS filters fused by wave velocity estimation model for leakage localization of water supply pipeline 基于波速估计模型融合的级联变阶LMS滤波器用于供水管道泄漏定位

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-06 DOI: 10.1016/j.apacoust.2025.110981

Jianwu Chen , Hao Xing , Meixue Liu , Xin Lv , Lunxiang Zhang , Jiawei Chu , Yongchen Song , Lei Yang , Zheyuan Liu

引用次数: 0

Improving acoustic leak localization accuracy using an adaptive denoising algorithm in water distribution pipes 利用自适应降噪算法提高配水管声泄漏定位精度

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-06 DOI: 10.1016/j.apacoust.2025.110984

Yifan Ma , Yan Gao , Xiwang Cui , Jun Yang , Yang Li

{"title":"Improving acoustic leak localization accuracy using an adaptive denoising algorithm in water distribution pipes","authors":"Yifan Ma , Yan Gao , Xiwang Cui , Jun Yang , Yang Li","doi":"10.1016/j.apacoust.2025.110984","DOIUrl":"10.1016/j.apacoust.2025.110984","url":null,"abstract":"<div><div>Leaks in water distribution pipes have been localized using acoustic or vibration measurements with sensors placed on access points along the pipeline systems. Significant challenges arise for leak noise correlators when plastic pipes are increasingly used for the renovation of aging systems and the installation of new ones. In this paper, a denoising algorithm is proposed to transform the cross-correlation process into an adaptive determination of finite impulse response coefficients. The proposed algorithm is shown to outperform traditional cross-correlation methods by being less reliant on the statistical characteristics of measured leakage signals, even when the signal-to-noise ratio (SNR) is significantly low. Furthermore, theoretical analysis and numerical simulations demonstrate that the SNR of the weight coefficients is substantially enhanced when the original signals are processed through the adaptive algorithm. The effectiveness of this adaptive algorithm for accurately locating leaks is validated through experimental data from both cast iron and plastic water pipes.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110984"},"PeriodicalIF":3.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Parallel adaptive bone-air conduction speech fusion with momentum-based narrowband noise cancellation for industrial environments 工业环境下基于动量窄带降噪的骨-空气传导并行自适应语音融合

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-06 DOI: 10.1016/j.apacoust.2025.110990

Boyan Huang , Shuai Zhang , Tao Zhang , Zhixuan Guan , Jianzhao Zhou , Tetsuya Shimamura

{"title":"Parallel adaptive bone-air conduction speech fusion with momentum-based narrowband noise cancellation for industrial environments","authors":"Boyan Huang , Shuai Zhang , Tao Zhang , Zhixuan Guan , Jianzhao Zhou , Tetsuya Shimamura","doi":"10.1016/j.apacoust.2025.110990","DOIUrl":"10.1016/j.apacoust.2025.110990","url":null,"abstract":"<div><div>Adaptive bone-air conduction speech fusion systems offer an effective solution for low signal-to-noise ratio (SNR) scenarios. However, sharp noises from rotating and cutting machines hinder complete narrowband noise elimination, thereby reducing speech intelligibility. To address this issue, this paper proposes a fully parallel adaptive bone-air conduction speech fusion system with integrated simultaneous narrowband noise cancellation. Non-acoustic sensors capture the dominant narrowband noise frequency components of environmental noise, while a momentum-adaptive algorithm constrained by a judgment factor enhances tracking robustness and suppression efficiency of narrowband interference in both air-conducted (AC) and fused speech signals, resulting in a purer residual error. Extensive simulations and experimental evaluations demonstrate that the proposed system effectively restores speech corrupted by narrowband noise, exhibiting superior tracking accuracy, reduced residual error, and minimized residual noise fluctuations in various industrial environments dominated by strong narrowband noise sources.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110990"},"PeriodicalIF":3.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 novel self-supervised learning framework for gearbox fault diagnosis 一种新的齿轮箱故障诊断自监督学习框架

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-05 DOI: 10.1016/j.apacoust.2025.110987

Yang Ge, Fusheng Zhang, Guodong Sun

引用次数: 0

Effect of noise control treatments on surfaces near a non-uniform inflow propeller 非均匀进流螺旋桨附近表面噪声控制处理的效果

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-05 DOI: 10.1016/j.apacoust.2025.110965

Leandro A. Castelucci, Martinus P.J. Sanders, Ysbrand H. Wijnant, Cornelis H. Venner, Lionel Hirschberg

{"title":"Effect of noise control treatments on surfaces near a non-uniform inflow propeller","authors":"Leandro A. Castelucci, Martinus P.J. Sanders, Ysbrand H. Wijnant, Cornelis H. Venner, Lionel Hirschberg","doi":"10.1016/j.apacoust.2025.110965","DOIUrl":"10.1016/j.apacoust.2025.110965","url":null,"abstract":"<div><div>With the advent of urban air mobility and distributed electric propulsion in aviation, effective noise mitigation for propeller systems has become critical. This study explores the application of noise-mitigating materials in the bottom wall of UTwente's wind tunnel test section, beneath a non-shrouded propeller subject to non-uniform inflow. The objective was to assess the impact of these materials on tonal noise reduction, emitted noise levels, and directivity. Two materials were tested: arrays of additive-manufactured quarter-wavelength resonators (band-stop mitigator) and a slab of metal foam (broadband mitigator). Various geometrical configurations were investigated for the resonators, with the optimal configuration placing resonators everywhere except directly beneath the propeller blades. Applying resonators immediately underneath the propeller, with a critical clearance, induced a spurious hydrodynamic interaction, amplifying tonal noise at higher frequencies. The efficiency of the quarter-wavelength-resonator solution depends heavily on configuration. Performance was compared with a flat plate and the metal foam, with the tuned resonators outperforming the broadband material in noise reduction. The polar directivity of the emitted sound is influenced by the configuration, and the presence of any sound-mitigating material underneath the propeller consistently degrades upstream azimuthal directivity.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110965"},"PeriodicalIF":3.4,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Singing in virtual environments: Exploring vocal adaptations to congruent audiovisual scenes of performance venues 在虚拟环境中歌唱：探索声乐适应一致的视听表演场地的场景

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-05 DOI: 10.1016/j.apacoust.2025.110974

Munhum Park, Kajornsak Kittimathaveenan

{"title":"Singing in virtual environments: Exploring vocal adaptations to congruent audiovisual scenes of performance venues","authors":"Munhum Park, Kajornsak Kittimathaveenan","doi":"10.1016/j.apacoust.2025.110974","DOIUrl":"10.1016/j.apacoust.2025.110974","url":null,"abstract":"<div><div>This study investigated the vocal adaptations of fifteen soprano singers performing in virtual venues. The virtual reality (VR) system comprised a headphone-based auralization using room impulse responses and a head-mounted display presenting 360-degree still images, both sourced from corresponding real-world venues. Singers performed two songs with differing tempos in each venue, and their audio recordings, captured via a near-lips microphone, were analyzed alongside responses to a comprehensive survey. Results revealed subtle but notable effects of venue: larger spaces were associated with reduced pitch accuracy, brighter timbre, and slower, less pronounced vibrato, while the mid-sized purpose-built auditorium elicited louder singing and greater tremolo extent compared to the excessively dry or reverberant venues. These adaptations primarily occurred at the note level and differed between songs. Interestingly, singers' subjective evaluations often did not align with objective performance metrics, suggesting many of these adjustments were subconscious. The study reveals some subtle impacts of audiovisual scenes on vocal performance and highlights the potential of VR systems for exploring these phenomena. The inclusion of visual cues may have contributed to differences from previous research, warranting further studies on the interplay of audio-visual factors in shaping musical performance.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"241 ","pages":"Article 110974"},"PeriodicalIF":3.4,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Channel polarization and application of OFDM underwater acoustic communication OFDM水声通信的信道极化及应用

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-08-02 DOI: 10.1016/j.apacoust.2025.110958

Yushuang Zhai , Li Ma , Minyan Huang , Haihong Feng

{"title":"Channel polarization and application of OFDM underwater acoustic communication","authors":"Yushuang Zhai , Li Ma , Minyan Huang , Haihong Feng","doi":"10.1016/j.apacoust.2025.110958","DOIUrl":"10.1016/j.apacoust.2025.110958","url":null,"abstract":"<div><div>Existing research has referenced polar code construction methods in wireless channels to estimate the instantaneous reliability for underwater acoustic (UWA) polarized sub-channels. However, it overlooks potential mismatches between the instantaneous codebook and the actual channel state caused by complex time-varying characteristics of UWA channel, and lacks sufficient study on the evolution of sub-channel reliability. This paper extends the foundational channel polarization theory to propose a new framework for parallel UWA channel polarization based on Orthogonal Frequency Division Multiplexing (OFDM). By integrating the time–frequency statistical characteristics of UWA channels, the reliability theoretical model of polarized channels was established. And the intrinsic relationship between its evolution and channel parameters as well as system performance was deeply analyzed. Moreover, through simulation and lake trials, this paper investigates the time–frequency variation of polarized sub-channel reliability under incomplete channel polarization with finite code length. Additionally, it analyzes the impact of UWA channel parameters, such as Doppler shift and time-variation, on channel polarization distribution and polar-coded OFDM system performance. This paper provides a reference for subsequent practical polar coded OFDM communication, and streamlines the code construction process by avoiding the repeated assessments of polarized sub-channel’s reliability.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110958"},"PeriodicalIF":3.4,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144757518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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