Journal of Sound and Vibration最新文献_第2页

The disturbance energy and Rayleigh criterion in a non-ideal compressible fluid 非理想可压缩流体中的扰动能量和瑞利判据

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-29 DOI: 10.1016/j.jsv.2025.119471

Gabriel Farag , Said Taileb

{"title":"The disturbance energy and Rayleigh criterion in a non-ideal compressible fluid","authors":"Gabriel Farag , Said Taileb","doi":"10.1016/j.jsv.2025.119471","DOIUrl":"10.1016/j.jsv.2025.119471","url":null,"abstract":"<div><div>Small perturbation theory neglects non-linear terms and allows for analytical predictions and identifications of physical trends. It can then be used for the understanding and modelling of more complicated nonlinear phenomena, <em>e.g.</em> turbulence and fluid instabilities. In compressible fluids these theories generally rely on the ideal gas assumption. This article theoretically examines the fluctuations in a non-ideal compressible fluid, utilizing the Navier–Stokes–Fourier model, with an arbitrary equation of state. The linearized governing system is deduced, thereafter elucidating the amplification or attenuation of fluctuations through an analysis of energy disturbance, extending the framework established by Chu (Chu, 1965) to encompass arbitrary non-ideal compressible fluids. It is demonstrated that the proposed disturbance energy embodies the same advantageous properties as Chu’s ideal-gas one. The study of the time evolution of the disturbance energy then allows to derive a simple stability criteria generalizing the Rayleigh criterion (Rayleigh, 1878) to steady and non-uniform flows of non-ideal compressible fluids. Similar to the Rayleigh criterion, this criterion offers novel physical insights into the amplification or attenuation of arbitrary fluctuations within non-ideal compressible fluids. Moreover, the present work represents an advancement attempting to extend classical findings derived under the ideal gas assumption to integrate alternative equations of state. The analysis and equations derived are expected to allow improvements in both the understanding and modelling of disturbances in non-ideal compressible fluids.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"620 ","pages":"Article 119471"},"PeriodicalIF":4.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Basins of attraction of periodic solutions in a multistable model of self-oscillating musical instrument 自振荡乐器多稳定模型周期解的吸引盆地

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-29 DOI: 10.1016/j.jsv.2025.119467

Thomas Passa , Soizic Terrien , Sylvain Maugeais , Bruno Gazengel

{"title":"Basins of attraction of periodic solutions in a multistable model of self-oscillating musical instrument","authors":"Thomas Passa , Soizic Terrien , Sylvain Maugeais , Bruno Gazengel","doi":"10.1016/j.jsv.2025.119467","DOIUrl":"10.1016/j.jsv.2025.119467","url":null,"abstract":"<div><div>Self-sustained musical instruments, modeled as nonlinear dynamical systems, can exhibit a wide range of dynamical regimes. This includes non-oscillating regimes, periodic oscillations corresponding to musical notes and non-periodic behaviors such as quasiperiodicity. Several regimes may coexist stably for identical parameter values, a phenomenon known as multistability. In this case, which regime is observed depends only on the initial conditions. We consider a simple model of single-reed instrument written as a system of four ordinary differential equations. A bifurcation analysis with the blowing pressure as bifurcation parameter shows that several stable periodic regimes – corresponding to distinct musical notes – coexist on a range of the blowing pressure. The implications of this multistable dynamics are explored by calculating the boundaries of the basins of attraction associated with each stable regime, i.e. the set of initial conditions leading to a particular regime. Since the system has a four-dimensional phase space, the direct visualization of the basins boundaries is not straightforward. We introduce a method inspired by the construction of the Poincaré section to visualize basins boundaries (referred to as separatrices) in a three-dimensional subspace of the phase space, by computing intersections of separatrices with cross-sections of the phase space defined as hyperplanes orthogonal to a particular stable periodic orbit. This yields a parametrized description of the basins boundaries, which can be visualized as a movie. Finally, we argue that the geometry of the basins of attraction provides insight into the sensitivity of periodic regimes to perturbations and, as such, on the instrument’s <em>playability</em>.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"621 ","pages":"Article 119467"},"PeriodicalIF":4.9,"publicationDate":"2025-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic modeling and analysis of gear system considering crack propagation and changing cantilever beam position 考虑裂纹扩展和悬臂梁位置变化的齿轮系统动力学建模与分析

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-28 DOI: 10.1016/j.jsv.2025.119477

Lifeng Lin , Zijian Qiao , Siyuan Ning , Chongyang Xie

{"title":"Dynamic modeling and analysis of gear system considering crack propagation and changing cantilever beam position","authors":"Lifeng Lin , Zijian Qiao , Siyuan Ning , Chongyang Xie","doi":"10.1016/j.jsv.2025.119477","DOIUrl":"10.1016/j.jsv.2025.119477","url":null,"abstract":"<div><div>Gear crack fault changes the dynamic characteristics of gear, and accurate construction of time-varying meshing stiffness (TVMS) model is the key to failure analysis. Therefore, the TVMS model of spur cracked gear was improved based on the potential energy method, and a dynamic model was established to analyze the influence of crack depth on the dynamic characteristics of the system. Simulation and experimental results show that the acceleration response of the improved model at different crack depths and angles is in good agreement with the experimental results in the time domain and frequency domain. Further analysis of the time-frequency response of the crack propagation process shows that the impulse factor and kurtosis are extremely sensitive to the crack fault characteristics. The test bench data verification shows that the root crack defect will make the vibration acceleration response show periodic modulation characteristics, and the frequency domain analysis shows that there is a significant sideband modulation phenomenon near the meshing frequency and its harmonics. The simulation is consistent with the characteristics of the measured signal, which verifies the correctness of the method and provides a theoretical basis for the monitoring and diagnosis of gear tooth cracks.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"621 ","pages":"Article 119477"},"PeriodicalIF":4.9,"publicationDate":"2025-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling and experimental validation of a novel hydraulic inertia-type vertical isolation system 一种新型液压惯量式垂直隔振系统的建模与实验验证

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-27 DOI: 10.1016/j.jsv.2025.119478

Lyan-Ywan Lu , Ging-Long Lin , Yung-Han Yang , An Shiu

{"title":"Modeling and experimental validation of a novel hydraulic inertia-type vertical isolation system","authors":"Lyan-Ywan Lu , Ging-Long Lin , Yung-Han Yang , An Shiu","doi":"10.1016/j.jsv.2025.119478","DOIUrl":"10.1016/j.jsv.2025.119478","url":null,"abstract":"<div><div>Vertical isolation technologies struggle to meet the demands for static support rigidity and dynamic isolation flexibility simultaneously. To resolve this problem, the present study designed a hydraulic inertia-type vertical isolation system (HIVIS) to protect equipment against seismic effects. This HIVIS contains a counterweight that enhances the system’s static rigidity, while simultaneously increasing its dynamic flexibility through the counterweight’s inertial force. Energy dissipation occurs through the viscous flow within a hydraulic link connecting the counterweight to the isolated equipment, which effectively mitigates the equipment’s acceleration and displacement responses. A mathematical model of the HIVIS was constructed, following which a dimensionless equation of motion was derived. For experimental validation, a component test was conducted on a prototype HIVIS to determine the nonlinear characteristics of the hydraulic link, including its frictional force and damping coefficient. Subsequently, the prototype HIVIS was tested on a shaking table using vertical sine-sweep and various earthquake excitations. The experimental results aligned well with the theoretical predictions, confirming the constructed model’s accuracy in simulating the dynamic behavior of the HIVIS. The experimental results also indicated that the HIVIS reduced isolation displacement by approximately 50 % compared with a traditional vertical isolation system (VIS) while consistently maintaining high isolation efficiency. Furthermore, the HIVIS exhibited excellent antiresonance performance under long-period near-fault ground motions. In summary, the analytical and experimental findings of this study indicate that HIVISs overcome the design limitations of traditional VISs and provide a more robust and comprehensive protection mechanism for precision equipment subjected to vertical seismic excitations.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"620 ","pages":"Article 119478"},"PeriodicalIF":4.9,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vibroacoustic analysis of revolving shells in an acoustic half-space using the Chebyshev spectral approach 用切比雪夫谱方法分析声学半空间中旋转壳体的振动声

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-27 DOI: 10.1016/j.jsv.2025.119476

Tiangui Ye , Tiantong Zhao , Ying Zhang , Xiang Xie , Guoyong Jin , Zhigang Liu

{"title":"Vibroacoustic analysis of revolving shells in an acoustic half-space using the Chebyshev spectral approach","authors":"Tiangui Ye , Tiantong Zhao , Ying Zhang , Xiang Xie , Guoyong Jin , Zhigang Liu","doi":"10.1016/j.jsv.2025.119476","DOIUrl":"10.1016/j.jsv.2025.119476","url":null,"abstract":"<div><div>A Chebyshev spectral approach is developed for the vibroacoustic analysis of revolving shell structures submerged in an acoustic half-space. The method couples dynamic modeling of shell vibrations with the Helmholtz boundary integral formulation, employing the half-space Green’s function to evaluate radiated sound pressure for both soft and rigid boundary conditions. To address the higher accuracy requirements for singular integrals introduced by high-order Chebyshev polynomials, an adaptive numerical integration strategy is implemented. The approach is validated through numerical examples involving a single spherical shell, a cylindrical shell, and a coupled conical–cylindrical–spherical shell, with results compared against analytical solutions, literature data, and commercial software. Detailed convergence, accuracy, and computational efficiency studies using the spherical shell benchmark confirm the effectiveness of the proposed method. This framework provides an efficient and robust tool for vibroacoustic analysis of complex shell structures in underwater acoustic environments. In addition, the study reveals that significant circumferential modal coupling occurs at shallow submersion depths, leading to pronounced frequency shifts and energy redistribution among modes. These effects manifest as distinct changes in both the displacement and radiated sound pressure spectra, especially for lower circumferential wavenumber modes.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"620 ","pages":"Article 119476"},"PeriodicalIF":4.9,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental studies on self-sustained combustion oscillation characteristics and flame/flow dynamics in a turbulent premixed annular combustor with different swirler configurations 不同旋流器构型的湍流预混环形燃烧室自持燃烧振荡特性及火焰/流动动力学实验研究

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-27 DOI: 10.1016/j.jsv.2025.119475

Chunyu Liu , Liang Yu , Dan Zhao , Xingcai Lu

{"title":"Experimental studies on self-sustained combustion oscillation characteristics and flame/flow dynamics in a turbulent premixed annular combustor with different swirler configurations","authors":"Chunyu Liu , Liang Yu , Dan Zhao , Xingcai Lu","doi":"10.1016/j.jsv.2025.119475","DOIUrl":"10.1016/j.jsv.2025.119475","url":null,"abstract":"<div><div>This study experimentally investigates how different swirler configurations influence self-excited combustion instabilities in a turbulent premixed annular combustor across various operating conditions. The effects of swirl intensity and swirler position on flame and flow dynamics are explored in detail. Results show that swirler configurations significantly alter flame shape, height, recirculation zone structure, and vorticity distribution. Four distinct combustion regimes are identified: stable, intermittent oscillations, limit-cycle oscillations, and beating oscillations. As the equivalence ratio is varied, the combustion state is evolved along specific paths. However, the evolution patterns exhibit noticeable differences under different swirler configurations. High-speed synchronized PIV and OH* chemiluminescence imaging reveal two types of flame motion. One type (i.e., Mode I) features strong axial “pumping” driven by convective flow, involving heat release pulsations and downstream flame retraction. The other type (i.e., Mode II) shows weaker axial oscillations, primarily induced by vortex structures moving periodically along the inner shear layers. A statistical investigation on Mode I confirms a linear relationship between the pumping duration and the convective time scale, highlighting the dominant role of axial convection. Swirler configuration is found to modulate the convective time scale, thereby influencing velocity fluctuations and ultimately determining oscillation frequency. Finally, we show that the fundamental combustion properties of the fuel have minimal impact on the dynamic behavior of Mode I in this annular combustor.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"621 ","pages":"Article 119475"},"PeriodicalIF":4.9,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of the temperature on the impedance control of pressure-based, current-driven electroacoustic absorbers: Addressing the loss of passivity using a viscoelastic material model 温度对基于压力、电流驱动的电声吸收器阻抗控制的影响：使用粘弹性材料模型解决无源性损失问题

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-26 DOI: 10.1016/j.jsv.2025.119468

Leonardo Ferreira , Rafael de O. Teloli , Emanuele de Bono , Morvan Ouisse

{"title":"Effect of the temperature on the impedance control of pressure-based, current-driven electroacoustic absorbers: Addressing the loss of passivity using a viscoelastic material model","authors":"Leonardo Ferreira , Rafael de O. Teloli , Emanuele de Bono , Morvan Ouisse","doi":"10.1016/j.jsv.2025.119468","DOIUrl":"10.1016/j.jsv.2025.119468","url":null,"abstract":"<div><div>In active noise control, pressure-based control strategies for electroacoustic absorbers depend on the loudspeakers’ electromechanical properties, known as Thiele–Small parameters, to implement impedance control. Due to the viscoelastic nature of loudspeaker materials, these parameters are sensitive to environmental conditions, particularly temperature. This study investigates the impact of temperature on the impedance control of electroacoustic absorbers. The acoustic impedance of several absorbers is measured over a broad temperature range, and an analytical model is used to identify the variation of the Thiele–Small parameters with temperature. A viscoelastic material characterization framework is then proposed, employing the Fractional Zener, Generalized Maxwell, and Generalized Fractional Maxwell models. These models are identified for individual absorbers and compared in terms of accuracy and computational cost. A generalized approach through a normalized curve derived from multiple absorbers is introduced to estimate the parameters of unknown absorbers. The pressure-based control law is subsequently updated to include temperature-dependent parameters, enabling evaluation of their influence on absorber passivity. Results demonstrate that adapting the control strategy using either direct measurements or model-based estimations enhances the acoustic passivity of electroacoustic absorbers.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"621 ","pages":"Article 119468"},"PeriodicalIF":4.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145267766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eigenvalue formulation for antiresonant and extremum response frequencies under harmonic base excitation 谐波基激励下反谐振和极值响应频率的特征值公式

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-26 DOI: 10.1016/j.jsv.2025.119472

Fanwei Meng , Guangyuan Fan , Liang Meng , Jihong Zhu , Bo Ping Wang , Jie Hou , Weihong Zhang

{"title":"Eigenvalue formulation for antiresonant and extremum response frequencies under harmonic base excitation","authors":"Fanwei Meng , Guangyuan Fan , Liang Meng , Jihong Zhu , Bo Ping Wang , Jie Hou , Weihong Zhang","doi":"10.1016/j.jsv.2025.119472","DOIUrl":"10.1016/j.jsv.2025.119472","url":null,"abstract":"<div><div>Eigenvalue formulation methods for determining the frequencies of antiresonance and local extrema in the frequency response have been shown to be successful in the numerical simulation for undamped structures under force excitation. In aerospace engineering, however, base-excited vibrations during launch and flight pose critical threats to sensitive components, demanding accurate prediction of these frequencies to guide structural optimization and modification for targeted vibration suppression. To address this, we extend our previous eigenvalue formulation method to include harmonic base excitation in this paper, making it more versatile. As demonstrated in the orbital module case study, this extension enables accurate frequencies prediction for large-scale complex spacecraft under base excitation scenarios. Furthermore, a comprehensive theoretical explanation of why the structural natural frequencies appear in various eigenvalue formulation methods for determining antiresonant frequencies is provided, addressing a previously unexplained aspect of this methodology. To demonstrate the proposed method, besides the numerical application, vibration experiment for a cantilever beam with base excitation was also carried out. The test results confirm the theoretically predicted antiresonant and extremum response frequencies. The test results also support the validity of undamped assumption for structures with light damping.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"620 ","pages":"Article 119472"},"PeriodicalIF":4.9,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145268493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gradient-based optimization of seismic metasurfaces for broadband vibration mitigation in layered soil based on power flow 基于潮流的层状土宽频带减振地震超表面梯度优化

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-24 DOI: 10.1016/j.jsv.2025.119466

Zohre Kabirian, David Carneiro, Geert Degrande, Geert Lombaert

{"title":"Gradient-based optimization of seismic metasurfaces for broadband vibration mitigation in layered soil based on power flow","authors":"Zohre Kabirian, David Carneiro, Geert Degrande, Geert Lombaert","doi":"10.1016/j.jsv.2025.119466","DOIUrl":"10.1016/j.jsv.2025.119466","url":null,"abstract":"<div><div>This paper presents a gradient-based optimization method to enhance the performance of seismic metasurfaces for broadband vibration mitigation. The metasurface consists of an array of single-degree-of-freedom (SDOF) resonators. A 3D coupled finite element–boundary element method is used to model the interaction of the resonators with the soil. The wave field generated by a point load at the soil’s surface represents environmental ground vibration. The transmitted power is quantified by the power flow through an auxiliary plane behind the metasurface. The integrated power flow over a range of frequencies is minimized in an optimization problem, providing a global metric of the metasurface’s effectiveness. An adjoint formulation is developed to efficiently compute gradients. Initially, each row of resonators is optimized. Subsequently, individual resonators are tuned to explore the trade-off between design complexity and performance. The optimized metasurfaces are benchmarked against a conventional inverse metawedge with graded resonance frequencies and uniform mass. The algorithm yields a non-uniform mass distribution at the total mass limit, achieving enhanced vibration mitigation. The optimization is particularly beneficial in layered soil where the wave propagation pattern is more complex. The performance of both optimized designs is similar, indicating limited benefit from tuning individual resonators. The power-flow-based objective function is shown to be robust with respect to the position and size of the auxiliary plane.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"621 ","pages":"Article 119466"},"PeriodicalIF":4.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving precise prediction of sound absorption performance for composite acoustic metamaterials utilizing machine learning 利用机器学习实现复合声学超材料吸声性能的精确预测

IF 4.9 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-09-23 DOI: 10.1016/j.jsv.2025.119469

Nansha Gao , Jiacheng Guo , Mou Wang , Denghui Qin , Xiao Liang , Zhicheng Zhang , Guang Pan

{"title":"Achieving precise prediction of sound absorption performance for composite acoustic metamaterials utilizing machine learning","authors":"Nansha Gao , Jiacheng Guo , Mou Wang , Denghui Qin , Xiao Liang , Zhicheng Zhang , Guang Pan","doi":"10.1016/j.jsv.2025.119469","DOIUrl":"10.1016/j.jsv.2025.119469","url":null,"abstract":"<div><div>To facilitate rapid and precise estimation of the acoustic performance of composite structures, this paper employs Deep Neural Networks (DNNs) within the realm of machine learning to tailor the design based on three key characteristics of the sound absorption performance of composite acoustic metamaterials: the frequency and magnitude of the maximum absorption peak, and the average absorption coefficient. Initially, a database comprising 100,000 randomly generated absorption curves was established, with 90 % of the data allocated for training and the remaining 10 % for test named data subset A. Subsequently, the database subjected to five-fold cross validation demonstrated a considerable level of prediction accuracy on data subset A and various ranges of data subset B. Finally, this paper randomly selected 10 sets of three sound-absorption characteristic parameters and conducted inverse prediction of the 28 geometric parameters for the corresponding composite acoustic metamaterials, using a fixed data subset A for each parameter set. These predicted geometric parameters were then used to derive the predicted sound absorption characteristics for the ten sets. When compared to the given values, the results exhibited a maximum relative error of 4.110 %, a minimum of 0.000 %, with the majority of errors falling within 0.100 %. This demonstrates that the DNN model presented in this paper can achieve accurate and swift predictions of the primary acoustic characteristics of acoustic composite structures, offering direct benefits in reducing the development cycle and saving labor and time costs.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"620 ","pages":"Article 119469"},"PeriodicalIF":4.9,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0