Applied Acoustics最新文献_第9页

Socio-acoustic survey on railway noise before and after the step changes in noise exposure and earthquakes in Kumamoto, Japan 日本熊本地区铁路噪声暴露与地震阶跃变化前后的社会声学调查

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-11 DOI: 10.1016/j.apacoust.2025.111157

Takashi Morihara , Koji Shimoyama , Shigenori Yokoshima , Makoto Morinaga , Sohei Tsujimura , Yasuhiro Hiraguri , Yasuhiro Murakami , Takashi Yano

{"title":"Socio-acoustic survey on railway noise before and after the step changes in noise exposure and earthquakes in Kumamoto, Japan","authors":"Takashi Morihara , Koji Shimoyama , Shigenori Yokoshima , Makoto Morinaga , Sohei Tsujimura , Yasuhiro Hiraguri , Yasuhiro Murakami , Takashi Yano","doi":"10.1016/j.apacoust.2025.111157","DOIUrl":"10.1016/j.apacoust.2025.111157","url":null,"abstract":"<div><div>The Kyushu Shinkansen Line was fully opened in 2011. The elevation of the conventional railway line was completed in the northern area of Kumamoto Station, and a new station began operation in the southern area in March 2016. Severe earthquakes struck the Kumamoto area in April 2016. Socio-acoustic surveys on community responses to railway noise and vibration were conducted before and after the interventions and the earthquakes. As a result, annoyance decreased after the earthquakes for residents in detached houses in the north, but increased for apartment residents in the north and both detached and apartment residents in the south. This was attempted to be explained using cognitive biases and the World Health Organization’s four levels of health in the field of sanitation. The use of trains and the frequency of opening and closing windows significantly affected annoyance for detached house residents in the northern area, while earthquake damage affected apartment residents in both areas. This suggests that the annoyance profile depends on the area’s characteristics and housing type.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111157"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528568","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

Corrigendum to “Sound Transmission Performance of Plate-Type Acoustic Metamaterials for Quieter Aircraft Cabins.” [Appl. Acoust. 238 (2025) 110806] “更安静的飞机舱室用板式声学超材料的声音传输性能”的勘误表。(达成。声波238 (2025)110806]

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-22 DOI: 10.1016/j.apacoust.2025.111169

A. Ajith , B. Balakrishnan , S. Raja , S. Paul Vizhian

引用次数: 0

Scatter-plots for acoustics lessons 声学课程的散点图

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-10-23 DOI: 10.1016/j.apacoust.2025.111126

Matthew C.M. Wright

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Performance analysis for mode decomposition methods in an axial fan 轴流风机模态分解方法的性能分析

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-05 DOI: 10.1016/j.apacoust.2025.111147

Haobo Li , Lin Du , Zhuo Wang , Yi Zhang , Xianghai Qiu , Dakun Sun , Xiaofeng Sun

{"title":"Performance analysis for mode decomposition methods in an axial fan","authors":"Haobo Li , Lin Du , Zhuo Wang , Yi Zhang , Xianghai Qiu , Dakun Sun , Xiaofeng Sun","doi":"10.1016/j.apacoust.2025.111147","DOIUrl":"10.1016/j.apacoust.2025.111147","url":null,"abstract":"<div><div>To analyze the performance of mode decomposition methods in rotating machinery such as turbofan engines, this paper begins with a series of tests using the experimental database of the TA36 single-stage compressor on the classic circumferential mode decomposition method (CM) and the compressive sensing method (CSM). While CM is widely used in industry, its uncertainties under limited microphone conditions have not been systematically evaluated, and CSM has rarely been validated in realistic fan experiments. This study aims to address these gaps. In addition, we focus on a realistic compressor with non-uniform inlet conditions, where the resulting circumferential non-uniformity of the acoustic field can significantly affect mode decomposition results. It is found that the uncertainties in CM results are relatively large, even when the system of equations is overdetermined. The solutions exhibit good convergence as the number of microphones increases. The error bands of the TS mode sound pressure level (SPL) are reduced to <span><math><mo>±</mo></math></span>0.5 dB for <span><math><msub><mtext>CM</mtext><mtext>20</mtext></msub></math></span>, which is then regarded as a reference. The analyses show the dependence of the decomposition results on the mode dominance ratio (MDR), which can be preliminarily estimated from the circumferential distribution of microphone SPL in the tests. Based on this, we investigated a series of factors that may influence the performance of CSM, including the number of microphones, signal-to-noise ratio (SNR), MDR, the absolute angle of array arrangement, and the masking of low-reliability signals.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111147"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474939","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

Porous sound absorbing materials from natural sources: data and modelling 天然多孔吸声材料：数据和建模

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-14 DOI: 10.1016/j.apacoust.2025.111162

Mohammad Javad SheikhMozafari , Ebrahim Taban , Keith Attenborough

{"title":"Porous sound absorbing materials from natural sources: data and modelling","authors":"Mohammad Javad SheikhMozafari , Ebrahim Taban , Keith Attenborough","doi":"10.1016/j.apacoust.2025.111162","DOIUrl":"10.1016/j.apacoust.2025.111162","url":null,"abstract":"<div><div>This study reports porosity, flow resistivity, and normal incidence sound absorption spectra for samples fabricated from plant fibers, crushed fruit stones, chopped nut shells, and wood-cement composites. The Johnson–Champoux–Allard (JCA) model has been used to fit measured data and extract microstructural parameters such as tortuosity and characteristic lengths. An alternative, semi-analytical approach based on a model for a log normal size distribution of non-uniform cylindrical pores (NUPSD) is proposed. It uses porosity, flow resistivity, and the frequency of the first quarterwavelength resonance to estimate tortuosity. Also, it enables estimates of thermal permeability for making predictions with the Johnson-Champoux-Allard-Lafarge (JCAL) model. It avoids the need for direct fitting and provides comparable predictions. Typically, it predicts higher values of tortuosity than those resulting from fitting the JCA model. For many samples, particularly those with fibrous structure, the NUPSD-based predictions agree better with measured spectra than predictions based on JCA model fitting. The results indicate that the materials made from plant fibers are better sound absorbers than materials made from wood chips, wood cement, crushed fruit stones or chopped nut shells. Those with the higher tortuosity, implying broader pore size distributions, are more useful as sound absorbers for building applications.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111162"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528564","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}

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Template-correlation approach for underwater target velocity estimation 水下目标速度估计的模板相关方法

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-10-30 DOI: 10.1016/j.apacoust.2025.111135

Weizhen Ma , Gaofeng Cheng , Jian Liu , Yonghong Yan

引用次数: 0

Broadband sound absorption characteristics of a semi-active anechoic coating with 1-1-3 piezoelectric composite based on a novel fourth-order homogenization method 基于四阶均匀化方法的1-1-3压电复合材料半主动消声涂层宽带吸声特性研究

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-10-28 DOI: 10.1016/j.apacoust.2025.111142

Qibai Huang , Wenyang Jin , Zhifu Zhang , Yizhe Huang , Zhiwen Mao , Ruihong Liang

{"title":"Broadband sound absorption characteristics of a semi-active anechoic coating with 1-1-3 piezoelectric composite based on a novel fourth-order homogenization method","authors":"Qibai Huang , Wenyang Jin , Zhifu Zhang , Yizhe Huang , Zhiwen Mao , Ruihong Liang","doi":"10.1016/j.apacoust.2025.111142","DOIUrl":"10.1016/j.apacoust.2025.111142","url":null,"abstract":"<div><div>The rapid development of sonar detection technology has significantly compromised the stealth performance of underwater vehicles. Conventional passive anechoic coatings face inherent limitations in achieving broadband, high‑efficiency sound absorption and lack dynamic tunability. This study proposes a semi‑active anechoic coating based on 1-1‑3 piezoelectric composite material. First, a novel fourth‑order homogenization method is proposed for predicting the macroscopic electromechanical parameters of 1‑1‑3 piezoelectric composite material. Then, a generalized transfer matrix model is developed by integrating wave propagation theory in layered media with a resistor–inductor–negative capacitance shunt circuit, establishing a three-dimensional acoustic analytical framework. Moreover, the accuracy and effectiveness of the present method are verified by an acoustic‑structural fully coupled finite element simulation and a hydroacoustic impedance tube experiment. Furthermore, parametric analysis systematically reveals the correlation between coating characteristics and sound absorption performance. The results demonstrate that the external shunt circuits significantly enhance sound absorption within targeted frequency bands, thereby improving the broadband absorption performance of the anechoic coating. The semi-active anechoic coating exhibits substantially enhanced sound absorption performance compared to conventional counterparts, thereby advancing underwater stealth technology toward intelligent, broadband, and low-frequency.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111142"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145425325","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

Deep learning-based inverse design of micro-perforated plate and Fibonacci-cavity coupling structure for low-frequency broadband sound absorption 基于深度学习的低频宽带吸声微孔板与斐波那契腔耦合结构反设计

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-03 DOI: 10.1016/j.apacoust.2025.111150

Yichi Zhang, Zhaojiang Chen, Yufei Ling, Jianning Zheng

{"title":"Deep learning-based inverse design of micro-perforated plate and Fibonacci-cavity coupling structure for low-frequency broadband sound absorption","authors":"Yichi Zhang, Zhaojiang Chen, Yufei Ling, Jianning Zheng","doi":"10.1016/j.apacoust.2025.111150","DOIUrl":"10.1016/j.apacoust.2025.111150","url":null,"abstract":"<div><div>In this work, a low-frequency broadband acoustic metamaterial absorber is designed based on a micro-perforated plate and a Fibonacci-cavity coupling structure, where the Fibonacci sequence arrangement of cavities facilitates the coupling of multiple resonance peaks and enables high-efficiency sound absorption. To effectively couple different units, a deep learning method is used to automatically optimize structural parameters. By constructing a multilayer perceptron, a highly accurate correlation between structural parameters and the sound absorption coefficient, with over 97 % accuracy, has been established. The results show that a well-trained forward neural network can effectively replace the intricate physical processes involved. We propose a method using a tandem neural network to achieve the inverse design of an acoustic absorber, which enables efficient and fast directional design compared to traditional empirical approaches and optimization algorithms. The achieved sound absorption efficiency is 81.8 % within the low-frequency spectrum of 300–800 Hz using only two resonance units, and the feasibility of the method is experimentally verified. The deep learning design method proposed in this study can be applied to various types of metamaterials, thereby significantly improving design efficiency.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111150"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474941","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

Broadband low-frequency sound absorption based on tube-bundle-embedded neck Helmholtz resonators 基于管束内嵌颈式亥姆霍兹谐振器的宽带低频吸声

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-05 DOI: 10.1016/j.apacoust.2025.111146

Zheyu Mao, Hanbo Shao, Xiaoli Wu

{"title":"Broadband low-frequency sound absorption based on tube-bundle-embedded neck Helmholtz resonators","authors":"Zheyu Mao, Hanbo Shao, Xiaoli Wu","doi":"10.1016/j.apacoust.2025.111146","DOIUrl":"10.1016/j.apacoust.2025.111146","url":null,"abstract":"<div><div>This article proposes a tube-bundle-embedded neck Helmholtz resonant configuration, which involves the division of the neck of a classical Helmholtz resonator (HR) into a tube bundle without altering the volume of the neck air, with the objective of achieving low-frequency broadband sound absorption at subwavelength scales. A theoretical model has been developed to assess the acoustic performance of the tube-bundle-embedded neck HR, and the accuracy of the model has been validated through FEM and experimental tests. The results indicate that the introduction of a tube-bundle-embedded neck is beneficial in meeting the impedance matching conditions between the metamaterial and air, as well as the critical coupling conditions for damping in the resonant system, thereby increasing the absorption peak of traditional HR from imperfect absorption to perfect absorption, while shifting the resonant frequency towards lower frequencies. A detailed analysis of the sound absorption mechanism of the structure reveals that the dissipation of energy primarily occurs in the neck. Consequently, it is possible to achieve optimal tunability of sound absorption by adjusting the neck length, cross-sectional area, and the number of embedded necks. Finally, to verify the broadband sound absorption potential of metamaterials, multiple subwavelength tube-bundle-embedded neck HR units were connected in parallel using an electroacoustic analogy method, achieving broadband quasi-perfect sound absorption in different frequency ranges. This research offers a novel approach for the design of subwavelength-sized low-frequency broadband sound absorption structures.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111146"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145474938","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

Modelling and experimental investigation of multilayered nonwoven-microperforated foil hybrid panels for advanced sound attenuation 多层非织造布微孔箔复合板超前消声性能的建模与实验研究

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2026-02-05 Epub Date: 2025-11-10 DOI: 10.1016/j.apacoust.2025.111158

Siddhi Vardhan Singh Rao , Apurba Das , Bipin Kumar , Nandan Kumar

{"title":"Modelling and experimental investigation of multilayered nonwoven-microperforated foil hybrid panels for advanced sound attenuation","authors":"Siddhi Vardhan Singh Rao , Apurba Das , Bipin Kumar , Nandan Kumar","doi":"10.1016/j.apacoust.2025.111158","DOIUrl":"10.1016/j.apacoust.2025.111158","url":null,"abstract":"<div><div>This study investigates the acoustic performance of singular and multilayered nonwoven absorbers, with particular emphasis on the integration of flexible aluminium microperforated foils (MPFs). Experimental testing combined with empirical modelling was employed to characterise their sound absorption behaviour. For acoustic behaviour of multilayered nonwoven configurations, homogenised equivalent-fluid modelling was developed with optimising the power-law constants using particle swarm optimization (PSO) algorithm. The results demonstrate that increasing the number of layers, while maintaining constant thickness or areal density, enhances sound absorption due to viscous, thermal, and structural losses, as well as phase shift and impedance matching between intermediate air layers. Compression of multilayered structures was found to reduce internal air cavities, leading to diminished absorption and a shift of peak performance toward higher frequencies. The incorporation of MPFs, engineered with structural damping and mass end correction modification to Maa’s model, yielded significant enhancement in low- and mid-frequency absorption. Moreover, the placement and number of MPFs within multilayer assemblies were shown to modulate both the magnitude and frequency of peak absorption. These findings provide valuable insights for designing advanced insulation materials that combine thermal management with improved acoustic comfort in automotive, industrial, and building applications.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"243 ","pages":"Article 111158"},"PeriodicalIF":3.4,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145528563","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