Applied Acoustics最新文献_第3页

Load frequency modulation control system of piezoelectric ultrasonic transducer based on LADRC 基于LADRC的压电超声换能器负载调频控制系统

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-16 DOI: 10.1016/j.apacoust.2025.110945

Shujun Ma, Xin Zhuang, Yanhao Zhang, Xiang He

{"title":"Load frequency modulation control system of piezoelectric ultrasonic transducer based on LADRC","authors":"Shujun Ma, Xin Zhuang, Yanhao Zhang, Xiang He","doi":"10.1016/j.apacoust.2025.110945","DOIUrl":"10.1016/j.apacoust.2025.110945","url":null,"abstract":"<div><div>Ultrasonic processing technology is widely employed in various industrial applications, including welding, metal forming, and machining. In the practical operation of piezoelectric ultrasonic transducers, the piezoelectric ultrasonic transducers experience a resistance force from the workpiece, leading to a shift in resonance frequency. This shift significantly reduces the performance and service life of the piezoelectric ultrasonic transducers. To address this issue, this paper proposes a resonance frequency tracking algorithm for piezoelectric ultrasonic transducers, based on a Linear Active Disturbance Rejection Control (LADRC) system. The algorithm tracks the resonance frequency by controlling the impedance phase difference of the piezoelectric ultrasonic transducers, effectively reducing impedance phase difference to zero. This enables real-time tracking of frequency changes, enhances system robustness and anti-jamming capability, and improves the stability and reliability of the control system. Simulation and experimental results demonstrate that the LADRC method can rapidly and stably perform secondary frequency tracking with minor overshooting, even under conditions of no-load resonance, sudden force loads, and electric load fluctuations. These results highlight the method’s robustness and adaptability. The proposed approach ensures stable resonance frequency tracking of piezoelectric ultrasonic transducers under load conditions, offering significant practical value in real-world applications.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110945"},"PeriodicalIF":3.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655818","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 birdsong intervention on annoyance due to residential noise in multi-family housing buildings: Dependency of spectral characteristics 鸟鸣干预对多户住宅噪声干扰的影响：频谱特征的依赖性

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-15 DOI: 10.1016/j.apacoust.2025.110942

Songmi Lee , Chunwon Eom , Jeonghun Kim , Jongkwan Ryu

{"title":"Influence of birdsong intervention on annoyance due to residential noise in multi-family housing buildings: Dependency of spectral characteristics","authors":"Songmi Lee , Chunwon Eom , Jeonghun Kim , Jongkwan Ryu","doi":"10.1016/j.apacoust.2025.110942","DOIUrl":"10.1016/j.apacoust.2025.110942","url":null,"abstract":"<div><div>This study investigated the reduction in annoyance from residential noise sources in multi-family housing buildings from intervened birdsongs, which addressed the lack of research on sound masking in residential spaces and the use of birdsongs as maskers for diverse residential noise sources. Based on frequency and temporal characteristics, seven residential noise sources (child jumping, child running, conversation, outdoor unit of air conditioner, piledriver, plumbing, and traffic noise) were chosen using clustering methods, and two birdsongs were selected for this study. The laboratory experiment consisted of two sessions: single residential noise sources and combined sounds (residential noise and birdsong). The participants evaluated the degree of annoyance using a 7-point Korean verbal scale. When birdsongs were added to residential noise, annoyance reduction was observed for most sound sources. Among these, children jumping and running showed the most significant reduction in annoyance. Analysis of the differences in physical parameters between the combined sounds and single residential noise sources revealed that frequency characteristics (Δf<sub>octave at max</sub>) were significantly correlated with annoyance. This suggests that when birdsongs are audible owing to different dominant frequency ranges from residential noise, attention from added birdsongs yields informational masking, thus reducing annoyance. The results of this study can provide basic data for the design of sound-masking systems in residential spaces.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110942"},"PeriodicalIF":3.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631526","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

Assessment of sound attenuation by submerged aquatic vegetation in shallow freshwaters 浅层淡水中沉水植被的声衰减评价

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-15 DOI: 10.1016/j.apacoust.2025.110936

Dominic Lagrois , Irene T. Roca , Marc Mingelbier , Jean-François Sénécal , Clément Chion

{"title":"Assessment of sound attenuation by submerged aquatic vegetation in shallow freshwaters","authors":"Dominic Lagrois , Irene T. Roca , Marc Mingelbier , Jean-François Sénécal , Clément Chion","doi":"10.1016/j.apacoust.2025.110936","DOIUrl":"10.1016/j.apacoust.2025.110936","url":null,"abstract":"<div><div>Acoustic propagation measurements were conducted in the shallow freshwater of Lake St. Pierre, a widening of the St. Lawrence River between Montréal and Trois-Rivières. Two (2) calibrated acoustic projectors were used to cover a mid-to-high frequency range between 2-60 <figure><img></figure>. Sites across the lake were selected to span a broad gradient of submerged aquatic vegetation (SAV) density, estimated semi-quantitatively through effective percent cover, to evaluate its impact on sound attenuation. Vegetation-induced excess propagation loss over 10 <figure><img></figure> ranged from near 0 <figure><img></figure> re 1 <figure><img></figure> at sparsely vegetated sites to approximately 60 <figure><img></figure> re 1 <figure><img></figure> where SAV dominated the O<sub>2</sub>-supersaturated water column. The strongest attenuation occurred between 15-17 <figure><img></figure>, consistent with the resonance scattering of sub-millimetric photosynthetic air bubbles. However, measurable attenuation across a wider frequency band suggests a broader distribution of bubble sizes and additional vegetation-related mechanisms. This study highlights the potential role of SAV in attenuating mid- to high-frequency acoustic energy, which may contribute to noise mitigation in freshwater ecosystems hosting a wide diversity of aquatic species.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110936"},"PeriodicalIF":3.4,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144631525","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

Study on the formation and sound absorption properties of multi-layer woven fabrics with air layers 带空气层的多层机织物的形成及吸声性能研究

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-14 DOI: 10.1016/j.apacoust.2025.110941

Shanshan Tan, Guizhen Ke

{"title":"Study on the formation and sound absorption properties of multi-layer woven fabrics with air layers","authors":"Shanshan Tan, Guizhen Ke","doi":"10.1016/j.apacoust.2025.110941","DOIUrl":"10.1016/j.apacoust.2025.110941","url":null,"abstract":"<div><div>Textile porous materials, due to their lightweight, flexibility, and strong designability, have shown great potential for application in sound absorption. Using polyester yarns as warp and weft yarns, the multi-layer air-layer woven fabric was successfully prepared using the ’flattening-weaving-restoring’ method. By dividing the weaving area and controlling the density of warp and weft yarns, multi-layer air-layer woven fabrics with different numbers of layers, pore sizes, and tightness were produced. The sound absorption coefficient evaluation results indicate that the multi-layer air gap design and high fabric tightness effectively improved the sound absorption coefficient within the mid-frequency range of 1000–5000 Hz. Under high fabric tightness, increasing the pore size can further enhance the sound-absorbing effect of the fabric. Using the sound absorption coefficient as the response value, a three-factor, three-level response surface analysis method was employed to establish a quadratic regression equation and recommend the optimal parameter combination. Impedance tube testing and response surface analysis revealed that when the fabric structural parameters were optimized to a tightness of 105 % and a pore size of 7 mm, the four-layer air-layer fabric exhibited outstanding broadband sound absorption performance, with an average sound absorption coefficient of 0.4827 across six octave bands, significantly surpassing the acoustic performance of conventional woven fabrics.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110941"},"PeriodicalIF":3.4,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144614831","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

Design and experimental analysis of active and passive dual sound absorption function structure based on dielectric elastomer film 基于介电弹性体膜的主动式和被动式双吸声功能结构设计与实验分析

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-11 DOI: 10.1016/j.apacoust.2025.110939

Wenjian Kuang, Jinwu Wu, Zhicong Hu, Qibo Mao

{"title":"Design and experimental analysis of active and passive dual sound absorption function structure based on dielectric elastomer film","authors":"Wenjian Kuang, Jinwu Wu, Zhicong Hu, Qibo Mao","doi":"10.1016/j.apacoust.2025.110939","DOIUrl":"10.1016/j.apacoust.2025.110939","url":null,"abstract":"<div><div>Thin film acoustic metamaterials, which have great potential applications in the field of acoustics, have led to the study of various film-type sound-absorbing and sound-insulating structures as well as film-type speakers. Therefore, this paper proposes a dielectric loudspeaker based on dielectric elastomeric films, which can be used for passive noise control and as an active sound-absorbing and noise-reduction unit. For the passive sound absorption performance of dielectric speakers, the impedance and sound absorption coefficient of the structure are obtained through both the acoustic-electrical analog model and theoretical calculations. The resonant frequency of the dielectric speaker, which serves as an active noise reduction unit, is obtained through theoretical calculations. The passive sound absorption coefficient, frequency response curves, and coherence curves of the dielectric speaker were obtained through testing, and it was verified that it could be used as an active noise reduction unit. Theoretical and experimental results show that micro-perforation treatment can effectively enhance the sound absorption performance of dielectric speakers. The resonant frequency of dielectric speakers, as obtained through both theoretical calculations and experiments, is found to be relatively consistent. This study provides new design ideas for the application of thin-film acoustic structures in the field of noise reduction.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110939"},"PeriodicalIF":3.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605511","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

Design of a defect containing bi-material nested structure phononic crystal with adjustable band gap 带隙可调双材料嵌套结构声子晶体的设计

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-11 DOI: 10.1016/j.apacoust.2025.110930

Yiping Wang , Dong Li

{"title":"Design of a defect containing bi-material nested structure phononic crystal with adjustable band gap","authors":"Yiping Wang , Dong Li","doi":"10.1016/j.apacoust.2025.110930","DOIUrl":"10.1016/j.apacoust.2025.110930","url":null,"abstract":"<div><div>In this work, a bi-material nested square phononic crystal structure containing defects with adjustable band gap is proposed. Defects are achieved by opening different numbers of square holes at different locations at the unit cell interior. Based on Bloch’s theorem, the propagation wave behavior of the bi-material nested structure with defects is discussed using the finite element method (FEM). The effects of the number of square holes, the location of defects, the shape of nested lattice and the density of filled metal materials on the band gap distribution are studied. In order to verify the existence of band gap, low amplitude elastic wave propagation experiment is made by 3D printing technology. The results show that non-overlapping band gaps appear in the bi-material nested structure with defects within 1000 Hz by changing the defect position and the number of square holes, and the switching control effect of frequency 500–1000 Hz band gaps is realized. The effect of filler metal density on the band gap is discussed on the basis of I-type phononic crystal structure, which provides design support for the application requirements of different working conditions. When the surface area of filled metal material is 52 % of the total surface area, circular nested phononic crystal band gap modulation works best. The experimental and simulation results are consistent to verify the existence of band gap. These findings can provide new ideas for the design of vibration damping metamaterials.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110930"},"PeriodicalIF":3.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144595357","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

Interference of the direct and two ground-reflected waves in a turbulent atmosphere 紊流大气中直接波和地面反射波的干涉

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-11 DOI: 10.1016/j.apacoust.2025.110932

Vladimir E. Ostashev , D. Keith Wilson , Daniel J. Breton , David E. Norris

{"title":"Interference of the direct and two ground-reflected waves in a turbulent atmosphere","authors":"Vladimir E. Ostashev , D. Keith Wilson , Daniel J. Breton , David E. Norris","doi":"10.1016/j.apacoust.2025.110932","DOIUrl":"10.1016/j.apacoust.2025.110932","url":null,"abstract":"<div><div>The interference of the direct wave from a source to receiver and that reflected from the ground is one of the main phenomena in short-range sound propagation in the atmosphere. This article studies ground interference in a turbulent atmosphere when, in addition to the direct wave, two ground-reflected waves arrive at the receiver. The multiple reflections occur in the presence of the sloped ground such as a hill or other terrain feature. The mean-squared sound pressure at the receiver depends on three factors, which characterize coherence between the three waves considered in a turbulent atmosphere. These coherence factors are expressed in terms of the geometrical parameters of the problem and effective spectrum of atmospheric turbulence. Numerical calculations demonstrate that the additional reflected wave from the sloped ground increases the number of the interference minima and maxima in the mean-squared sound pressure as a function of frequency. Due to atmospheric turbulence, the mean-squared sound pressure significantly increases at the minima and decreases at the maxima. These effects become greater with increasing frequency and turbulence intensity.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110932"},"PeriodicalIF":3.4,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144595358","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

Quasi-compact model for accurate noise prediction of complex rotor configurations 精确预测复杂转子结构噪声的准紧凑模型

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-10 DOI: 10.1016/j.apacoust.2025.110928

F. Caccia , L. Galimberti , L. Abergo , A. Savino , A. Zanotti , M. Parsani , A. Guardone

{"title":"Quasi-compact model for accurate noise prediction of complex rotor configurations","authors":"F. Caccia , L. Galimberti , L. Abergo , A. Savino , A. Zanotti , M. Parsani , A. Guardone","doi":"10.1016/j.apacoust.2025.110928","DOIUrl":"10.1016/j.apacoust.2025.110928","url":null,"abstract":"<div><div>The design of urban air mobility systems requires fast yet accurate aerodynamic and acoustic analyses of propeller interactions. Low-fidelity solvers relying on compact F1A formulations are commonly used, but the compact acoustic assumption does not hold for loading noise produced by unsteady inflows. This study introduces a quasi-compact acoustic model applied to isolated and tandem interacting propellers comparing its performance against other hybrid solvers. The quasi-compact model propagates the local chord-wise and span-wise pressure jump distribution computed with a non-linear vortex-lattice aerodynamic solution to far-field observers. Compact models simplify this by using the span-wise distribution only. Reference solutions are generated by propagating high-fidelity CFD pressure fields to far-field observers using the same Ffowcs Williams-Hawkings solver. Results demonstrate that the compact formulation achieves convergence only for isolated propellers, whereas the quasi-compact formulation can provide converged solutions also with rotor-rotor interactions and compares better with the reference high-fidelity data.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110928"},"PeriodicalIF":3.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588304","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

Investigating strain rate effects on damage mechanisms in hybrid laminated composites using acoustic emission 利用声发射研究应变率对杂化层合复合材料损伤机制的影响

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-09 DOI: 10.1016/j.apacoust.2025.110931

Abdulkadir Gulsen , Burak Kolukisa , Mustafa Etcil , Umut Caliskan , Hafız Muhammad Numan Zafar , Munise Didem Demirbas , Ahmet Turan Ozdemir , Burcu Bakir-Gungor

{"title":"Investigating strain rate effects on damage mechanisms in hybrid laminated composites using acoustic emission","authors":"Abdulkadir Gulsen , Burak Kolukisa , Mustafa Etcil , Umut Caliskan , Hafız Muhammad Numan Zafar , Munise Didem Demirbas , Ahmet Turan Ozdemir , Burcu Bakir-Gungor","doi":"10.1016/j.apacoust.2025.110931","DOIUrl":"10.1016/j.apacoust.2025.110931","url":null,"abstract":"<div><div>Hybrid composites, which combine distinct fiber types such as carbon, basalt, and aramid, provide a synergistic balance of strength, stiffness, impact resistance, and energy dissipation, making them appealing for critical applications in aerospace, automotive, and other high-performance industries. Monitoring damage progression in these composites is vital for ensuring structural integrity and preventing catastrophic failures. Acoustic emission (AE) serves as a powerful, noninvasive technique for real-time structural health monitoring, capturing the transient stress waves generated when damage events occur. This study utilizes AE to examine the influence of strain rate on damage modes in carbon/basalt/aramid hybrid composites under three-point bending. An unsupervised feature selection based on Laplacian scores is employed to identify the most relevant AE features with damage modes, while SHapley Additive Explanations (SHAP) are used to evaluate the correlation between AE features and strain rates. The correlation analysis results indicate that peak frequency (PF) serves as a key indicator, demonstrating significant shifts at higher strain rates. Gaussian Mixture Model (GMM) clustering is used to analyze hybrid composites by examining clustered AE signals based on selected features identified through Laplacian scores, with Silhouette scores employed to determine the optimal number of clusters. This study highlights the role of AE in understanding fiber interactions and damage evolution, offering valuable insights into the mechanical performance and optimization of carbon/basalt/aramid hybrid composite structures.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110931"},"PeriodicalIF":3.4,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580267","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

An interpretable frequency-enhanced domain adaptive network for cross-domain fault diagnosis of rotating machinery 旋转机械跨域故障诊断的可解释频率增强域自适应网络

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-07-09 DOI: 10.1016/j.apacoust.2025.110934

Yazhou Zhang , Xiaoqiang Zhao , Zhenrui Peng , Yongyong Hui , Rongrong Xu , Peng Chen

{"title":"An interpretable frequency-enhanced domain adaptive network for cross-domain fault diagnosis of rotating machinery","authors":"Yazhou Zhang , Xiaoqiang Zhao , Zhenrui Peng , Yongyong Hui , Rongrong Xu , Peng Chen","doi":"10.1016/j.apacoust.2025.110934","DOIUrl":"10.1016/j.apacoust.2025.110934","url":null,"abstract":"<div><div>The performance of domain adaptive fault diagnosis methods can be limited under noisy environments and variable operating conditions, and existing domain adaptive methods lack interpretability. Therefore, to address the above issues, an interpretable frequency-enhanced domain adaptive network (IFEDAN) for cross-domain fault diagnosis of rotating machinery is proposed in this paper. First, the time-domain signals are converted into the frequency domain using the Fast Fourier Transform (FFT) to enhance the representation of frequency-domain fault features. Additionally, the Morlet wavelet is introduced in the initial layer of the model for weight initialization, which enhances the model’s ability to capture fault features. Then, a frequency-enhanced residual block is designed, which not only helps the model to capture more transferable features, but also further enhances the useful features from both local and global perspectives. Finally, Entropy Maximum Mean Difference (EMMD) loss is designed. EMMD uses the entropy value to determine the bandwidth of the Gaussian kernel, which enhances the stability of the training and decision boundaries. Validation is performed on the public dataset, the roller gear (RG) dataset and the Lanzhou University of Technology (LUT) dataset. The results show that IFEDAN has excellent cross-domain diagnostic performance. When performing cross-domain diagnosis between different datasets, the average diagnosis accuracy of IFEDAN reaches 93.81 %, which is higher than the comparison methods.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"240 ","pages":"Article 110934"},"PeriodicalIF":3.4,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580266","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