Applied Acoustics最新文献_第7页

Order-based beamforming to identify tonal noise sources from a variable speed array measurement

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-01-02 DOI: 10.1016/j.apacoust.2024.110433

Kalasagarreddi Kottakota , Jérôme Antoni , Quentin Leclère , Simon Bouley , Claudio Colangeli

{"title":"Order-based beamforming to identify tonal noise sources from a variable speed array measurement","authors":"Kalasagarreddi Kottakota , Jérôme Antoni , Quentin Leclère , Simon Bouley , Claudio Colangeli","doi":"10.1016/j.apacoust.2024.110433","DOIUrl":"10.1016/j.apacoust.2024.110433","url":null,"abstract":"<div><div>In rotating machinery, noise source identification plays a vital role in early-stage acoustic refinement. When machines operate at varying speeds, traditional beamforming techniques like frequency-based beamforming is no longer suitable, as the generated vibroacoustic phenomena are nonstationary. Order-tracking is a popular way to deal with such nonstationary regimes and can extract orders, which are time-varying phasors rotating proportionally to shaft speed. This paper introduces an Order-Based Beamforming (OBBF) technique, which performs beamforming on extracted orders by mapping complex envelopes at the array's microphones to the source complex envelope to localize and quantify sources causing tonal noise at variable speeds. The wealth of information provided by OBBF facilitates the construction of tonal acoustic radiation movies along the course of an order with each frame being a beamforming map, thereby enabling source characterization in space, time, frequency, angle and angular speed. The proposed technique is comprehensively detailed and verified both in numerical simulations and experimentally on an induction motor test bench.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110433"},"PeriodicalIF":3.4,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Comparison of perceived auditory distance between real and virtual sound sources

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-31 DOI: 10.1016/j.apacoust.2024.110519

Esteban N. Lombera , Joaquin Cerviño , Laura Berenice Piceda , Manuel Viskovic , Ramiro O. Vergara

{"title":"Comparison of perceived auditory distance between real and virtual sound sources","authors":"Esteban N. Lombera , Joaquin Cerviño , Laura Berenice Piceda , Manuel Viskovic , Ramiro O. Vergara","doi":"10.1016/j.apacoust.2024.110519","DOIUrl":"10.1016/j.apacoust.2024.110519","url":null,"abstract":"<div><div>Comparative research on auditory distance perception between real and virtual environments remains limited. This study examines how perceived distance of real sound sources compares to that of virtual sound sources using two approaches: individualized binaural room impulse responses (BRIRs) and non-individualized BRIRs. Additionally, we will investigate the impact of acoustic congruence between the room in which the BRIRs were recorded and the room in which they are reproduced on the perceived distance of virtual sources. We compared the perceived distance of virtual stimuli presented in the same room where they were recorded (congruent condition) and in a room with a significantly lower reverberation time (incongruent condition). Participants listened to a musical fragment from both real and virtual sources positioned at distances of 1, 2, 3, 4, 5, and 6 m, with virtual stimuli delivered through open-back headphones. Results of Experiment 1 demonstrated that auditory distance perception for both individualized and non-individualized measured BRIRs was comparable to real sound sources when playback occurred in the original recording environment. Experiment 2 revealed that room incongruence affected participants in a differentiated manner. A group of participants (27 %) reported almost no changes in perceived distance. For the remaining participants, the effect was more subtle, resulting in significantly more compressed responses compared to those who performed the experiment under congruent conditions.</div><div>These findings highlight the effectiveness of measured BRIRs in replicating auditory distance when playback in congruent conditions. Additionally, they demonstrated that acoustic incongruence between the BRIRs recording room and the playback room negatively impacted auditory distance perception.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110519"},"PeriodicalIF":3.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095904","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

Influence of different excitation parameters on laser ultrasonic Rayleigh wave and surface micro-defect detection

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-31 DOI: 10.1016/j.apacoust.2024.110496

Yu Peng , Xiaokai Wang , Shutong Dai , Kangwen Huang , Chaoshan Ren , Yan Zeng

{"title":"Influence of different excitation parameters on laser ultrasonic Rayleigh wave and surface micro-defect detection","authors":"Yu Peng , Xiaokai Wang , Shutong Dai , Kangwen Huang , Chaoshan Ren , Yan Zeng","doi":"10.1016/j.apacoust.2024.110496","DOIUrl":"10.1016/j.apacoust.2024.110496","url":null,"abstract":"<div><div>Ultrasonic Rayleigh wave excited by laser can be used to detect surface defects. However, the change of the parameters of the excitation laser will lead to change in the time–frequency characteristics of the Rayleigh wave, which in turn affects the detection of micro surface defects. Through numerical simulation and experiments, this paper systematically studied the influence laws of excitation laser pulse energy, pulse width, spot diameter on ultrasonic Rayleigh wave amplitude in time domain and maximum effective frequency in frequency domain, established three-dimensional finite element models of laser ultrasonic detection of surface micro-defects, and revealed that with the increase of Rayleigh wave frequency, the transmitted energy decreases after the interaction of Rayleigh waves and defects. The ultrasonic detection experiment for surface micro-defects is designed. In the experiment, the excitation laser is picosecond pulsed laser, and the B-Scan images of Φ0.1 mm and Φ0.05 mm micro-defects under different excitation laser parameters were obtained. The laser ultrasonic fast scanning detection system based on two-dimensional galvanometer was established to detect Φ0.05 mm defects on the surface of additive titanium alloy plate by C-Scan imaging. The micro-defects on rough surface were successfully detected under the optimal detection parameters. The research results provide a basis for the design and optimization of laser ultrasonic detection parameters of surface micro-defects.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110496"},"PeriodicalIF":3.4,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095903","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 two-stage DOA estimation of sound sources based on hierarchical sparse Bayesian inference

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-30 DOI: 10.1016/j.apacoust.2024.110514

Xiaobo Zhang , Zhengyu Chen , Xinxi Yu , Bo Lin , Zhenyu Ma , Jinchan Zhu , Ping Wang , Jian Li

{"title":"A novel two-stage DOA estimation of sound sources based on hierarchical sparse Bayesian inference","authors":"Xiaobo Zhang , Zhengyu Chen , Xinxi Yu , Bo Lin , Zhenyu Ma , Jinchan Zhu , Ping Wang , Jian Li","doi":"10.1016/j.apacoust.2024.110514","DOIUrl":"10.1016/j.apacoust.2024.110514","url":null,"abstract":"<div><div>To efficiently achieve off-grid sparse Bayesian direction-of-arrival (DOA) estimation for sound sources, this paper proposes a two-stage off-grid DOA estimation method based on a hierarchical sparse Bayesian inference (HSBI) framework. In the first stage, the proposed HSBI model utilizes a Gaussian distribution to form a sparse representation of sound sources in space, and a Laplace distribution to enhance sparsity in intermediate parameters during Bayesian inference. This stage provides initial estimates of the unknown sound source positions, serving as the foundation for the second stage. In the second stage, a novel particle swarm optimization (PSO)-based high-precision DOA solver is proposed. This solver leverages spatial beamforming theory to efficiently search for the maximum energy distribution in the physical space, yielding accurate sound source position estimates at high speed. The HSBI model exhibits superior sparsity performance, allowing for precise estimation of unknown sound sources while preventing the PSO solver from becoming trapped in local optima. Simulation and experimental results show that the PSO-HSBI algorithm achieves efficient sound source DOA estimation with low computational complexity, while significantly reducing amplitude and localization errors. The source code for the proposed PSO-HSBI algorithm is available at <span><span>https://github.com/Xiaob0-Zhang/PSO-HSBI</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110514"},"PeriodicalIF":3.4,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095429","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

Experimental realization of hyperlens for sound waves based on a topology-optimized hyperbolic acoustic metamaterial

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-30 DOI: 10.1016/j.apacoust.2024.110516

Sang Uk Park , Sangyeop Lee , Kyungjun Song , Jaeyub Hyun

引用次数: 0

Phase relationships of finite amplitude ultrasound waves and its application in determining nonlinear acoustical parameters

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-28 DOI: 10.1016/j.apacoust.2024.110510

Shigong Zhang , Xianmei Wu , Zhiling Li , Kesheng Zhang

{"title":"Phase relationships of finite amplitude ultrasound waves and its application in determining nonlinear acoustical parameters","authors":"Shigong Zhang , Xianmei Wu , Zhiling Li , Kesheng Zhang","doi":"10.1016/j.apacoust.2024.110510","DOIUrl":"10.1016/j.apacoust.2024.110510","url":null,"abstract":"<div><div>Compared with second harmonics, phase relation contains more comprehensive nonlinear characteristics, and is proposed to determine the nonlinear acoustical parameter. Based on perturbation theory, the previous 16 harmonic solutions are solved automatically. Hilbert transform is employed to evaluate the phase of nonlinear signal, and phase shift is obtained by subtracting the phase of a nonlinear signal from that of a reference linear signal. Meanwhile, thermodynamic method is also analyzed and which make it easier to calculate phase shift. Then, nonlinear ultrasound experiments are performed in distilled water to verify the theoretical results. It shows that the simulated phase and phase shift are consistent with experiments. With experimental phase shift data collected at different propagation distances and of different excitation levels, the nonlinear parameter of water is calculated (<span><math><mover><mi>β</mi><mo>∼</mo></mover></math></span> = 3.44 at 18℃) with an optimization method. It shows that determining nonlinear parameter with phase shift not only avoids the use of inaccurate second harmonic perturbation solution, but also eliminates the need for extracting fundamental and harmonic amplitudes. This work enriches the propagation theory of finite amplitude waves and provides a new method for nonlinear ultrasonic detection and evaluation.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110510"},"PeriodicalIF":3.4,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095902","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

Orthogonal loudspeaker matching for stable and accurate multizone sound field reproduction

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-27 DOI: 10.1016/j.apacoust.2024.110507

Shang Zhao, Haoxin Ruan, Zhibin Lin, Jing Lu

{"title":"Orthogonal loudspeaker matching for stable and accurate multizone sound field reproduction","authors":"Shang Zhao, Haoxin Ruan, Zhibin Lin, Jing Lu","doi":"10.1016/j.apacoust.2024.110507","DOIUrl":"10.1016/j.apacoust.2024.110507","url":null,"abstract":"<div><div>Multizone sound field reproduction employs loudspeakers to create personalized sound zones within a shared space. The selection of optimal loudspeaker placements is crucial for enhancing system performance, which has led to the development of various algorithms for loudspeaker placement optimization. Typically, these methods focus on reproducing a single desired sound field, often neglecting the exchange between bright and dark zones. This paper evaluates these methods in reproducing multiple desired sound fields. Additionally, existing approaches generally emphasize either reproduction accuracy or system stability, but rarely both. To address this limitation, this study introduces an iterative method that extracts the orthogonalization component between the candidate loudspeaker and the selected loudspeakers, referred to as the “orthogonal loudspeaker”. The sound fields reproduced by this component serve as the criterion for determining optimal loudspeaker placement during the iteration process. Experiments conducted in both narrowband and broadband settings demonstrate that the proposed method can accurately reconstruct the desired sound fields while maintaining a relatively low condition number for the selected loudspeaker configuration. Moreover, the proposed method exhibits high stability below 600 Hz and ensures accurate reproduction at higher frequencies, even in the presence of system perturbations.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110507"},"PeriodicalIF":3.4,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095430","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

Passive source localization by two hydrophones in direct arrival zone and shadow zone

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-27 DOI: 10.1016/j.apacoust.2024.110512

Kang Zheng , Jixing Qin , Shuanglin Wu, Yubo Qi , Zhaohui Peng

{"title":"Passive source localization by two hydrophones in direct arrival zone and shadow zone","authors":"Kang Zheng , Jixing Qin , Shuanglin Wu, Yubo Qi , Zhaohui Peng","doi":"10.1016/j.apacoust.2024.110512","DOIUrl":"10.1016/j.apacoust.2024.110512","url":null,"abstract":"<div><div>A broadband source localization method based on two kinds of multipath time delays using dual vertical hydrophones suitable for both direct arrival zone (DAZ) and shadow zone (SZ) in deep water is presented. We analyze the multipath time delays in the DAZ and SZ for sound source near the surface, which are related to source depth and range. Thus, source position can be estimated using these time delays. However, there is currently a problem of source position ambiguity in the previous localization methods, especially misjudgment of sound zones. Our approach addresses the above issues from two perspectives. On the one hand, two types of time delays are used for localization to avoid the ambiguous position results caused by using a single time delay. On the other hand, we use dual hydrophones to overcome the problem of misjudgment in sound zones. Four positioning results can be obtained by locating the signals received by two vertical hydrophones using time delays calculated in the DAZ and SZ, and the average of the two results with the highest similarity is the accurate source position. The simulation results and the experimental data indicate that the method has good localization performance and robustness in the both DAZ and SZ.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110512"},"PeriodicalIF":3.4,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095431","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

Experimental study on noise reduction of a compact axial fan with leaned vanes

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-26 DOI: 10.1016/j.apacoust.2024.110509

Yongjie Huo , Zhizhen Wang , Lin Du , Xiaoyu Wang , Xiaofeng Sun , Zhuo Wang , Weiguang Zhang

{"title":"Experimental study on noise reduction of a compact axial fan with leaned vanes","authors":"Yongjie Huo , Zhizhen Wang , Lin Du , Xiaoyu Wang , Xiaofeng Sun , Zhuo Wang , Weiguang Zhang","doi":"10.1016/j.apacoust.2024.110509","DOIUrl":"10.1016/j.apacoust.2024.110509","url":null,"abstract":"<div><div>In this paper, the blade lean design was applied to a 1.5-stage compact axial fan, and its acoustic benefits were fully investigated through a reliable experimental study under five different rotation speeds with the tip Mach number ranging from 0.15 to 0.195. Compared with the original design, three additional sets of positively leaned vanes were employed for these test series. The far-field directivity and spectra analyses were conducted with the objective of investigating different acoustic behaviors in the upstream and downstream fields. Detailed experimental results show that each blade lean design, with negligibly affecting the aerodynamic performance, has achieved both the tonal and broadband noise reduction at all far-field observation angles over the range of rotation speeds. Evaluating different noise components, the relationship between the blade lean angle and noise reduction has been identified. It is found that the broadband noise reduction exhibits a positive correlation with blade lean angle, while the tonal noise reduction appears to have an optimal blade lean design. In summary, an overall sound power level reduction up to 5 dB in the upstream field and 3 dB in the downstream field has been achieved through these leaned vanes.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110509"},"PeriodicalIF":3.4,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095426","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

MFNSclus: A multi-imaging fusion and clustering method for noise sources identification of permanent magnet synchronous motor

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2024-12-25 DOI: 10.1016/j.apacoust.2024.110504

Cheng Yang , Wei Shi , Dingyu Hu , Aihua Liao

{"title":"MFNSclus: A multi-imaging fusion and clustering method for noise sources identification of permanent magnet synchronous motor","authors":"Cheng Yang , Wei Shi , Dingyu Hu , Aihua Liao","doi":"10.1016/j.apacoust.2024.110504","DOIUrl":"10.1016/j.apacoust.2024.110504","url":null,"abstract":"<div><div>Acoustic imaging of permanent magnet synchronous motor (PMSM) faces the challenge of identifying the type of noise sources. A method for identifying PMSM noise sources which involves multi-imaging fusion and clustering is proposed. Firstly, the dominant frequency components of PMSM noise are extracted from multiple measurements using microphone array. Then, acoustic imaging techniques are used to create a map of sound pressure level at selected frequencies. Subsequently, two strategies, coordinate clustering and information clustering, are applied to integrate peak point coordinates, amplitudes, and other information from the sound pressure level map. Finally, the clustering results are combined with the 3D model of PMSM to identify noise sources. Effectiveness of this method was validated by experiments, which revealed that the main noise sources of PMSM are 8 k orders noise and high-frequency noise near the switching frequency due to inverter current harmonics. Compared with traditional acoustic imaging techniques and order analysis, the proposed method provides a 3D noise distribution of PMSM and intuitively represents the types of noise sources.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"231 ","pages":"Article 110504"},"PeriodicalIF":3.4,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143095425","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