Journal of Sound and Vibration最新文献

Coupling sonic black holes to a resonant cavity using patch transfer functions 利用贴片传递函数耦合声波黑洞到谐振腔

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-12 DOI: 10.1016/j.jsv.2025.119316

Pedro Cerântola , Laurent Maxit , Oriol Guasch , Jie Deng

{"title":"Coupling sonic black holes to a resonant cavity using patch transfer functions","authors":"Pedro Cerântola , Laurent Maxit , Oriol Guasch , Jie Deng","doi":"10.1016/j.jsv.2025.119316","DOIUrl":"10.1016/j.jsv.2025.119316","url":null,"abstract":"<div><div>Sonic black holes (SBHs) typically consist of a waveguide with concentric rings of decreasing radius separated by cavities that slow down incident sound waves, dissipate their energy, and cause minimal reflection. Although there are many works on SBH simulation methods, performance analysis, and design optimization, no one has considered the interaction of SBHs with other systems. The purpose of this paper is to begin to explore this point by considering the connection of an SBH to a resonant cavity and determining the effects the SBH has on the internal acoustic pressure field of the cavity. Since this is a complex problem, it is first proposed to resort to the patch transfer function (PTF) substructuring method to simulate the behavior of the coupled system. After validating the PTF with finite element simulations (FEM) of the entire coupled system, the PTF is used to perform parametric analyses to evaluate the influence of the position and the number of SBHs on the cavity mean quadratic pressure. Although SBHs are typically intended for medium and high frequency pressure reduction in ducts, it is shown that with proper design they can be very effective in dissipating low frequency pressure peaks within the cavity, with potential for room acoustics applications, among others.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119316"},"PeriodicalIF":4.3,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653690","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

Health monitoring of planetary gearbox using motor’s control signals 利用电机控制信号对行星齿轮箱进行健康监测

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-12 DOI: 10.1016/j.jsv.2025.119332

Dexin Chen, Ming Zhao, Xiaolong Han, Sen Li, Yue Zhang

{"title":"Health monitoring of planetary gearbox using motor’s control signals","authors":"Dexin Chen, Ming Zhao, Xiaolong Han, Sen Li, Yue Zhang","doi":"10.1016/j.jsv.2025.119332","DOIUrl":"10.1016/j.jsv.2025.119332","url":null,"abstract":"<div><div>Planetary gearboxes are critical components in modern machines, so it is also crucial to deploy health monitoring for their long-term running. Nevertheless, conventional health monitoring still has a high reliance on extra sensors. Control signals (CS) feedback from the motor provides a new no-extra-sensors measurement for health monitoring. However, the complex coupling relationship between the planetary gearbox and driving motor, and the complicated transmission pattern of planetary-gearbox gear faults in the control system, make the characterization of these faults in CS unclear. Given this, we establish a novel speed-torque dual-couple model, which integrates the motor’s control model and the torsional vibration of the planetary gearbox under nonlinear behaviors as an electromechanical coupling system. Then, we construct a new semi-closed loop control model of this system and reveal the transmission pattern of gear faults in the motor control system. On this basis, we calculate and identify the characterization relationship in the simulation, and verify it in the experiment. The results indicate that this model can effectively characterize the impact of gear faults in planetary gearboxes on CS. In addition, the <em>q</em>-axis current in CS can effectively characterize the degrees of gear faults in planetary gearboxes. This paper provides a theoretical basis for the health monitoring of planetary gearboxes without extra sensors.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119332"},"PeriodicalIF":4.3,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662815","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

Reference-free impedance-based crack detection for asymmetric structures: application to tidal turbine blades 基于无参考阻抗的非对称结构裂纹检测：在潮汐涡轮机叶片上的应用

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-11 DOI: 10.1016/j.jsv.2025.119304

Thanh-Canh Huynh, Chan Ghee Koh, Ying Min Low

{"title":"Reference-free impedance-based crack detection for asymmetric structures: application to tidal turbine blades","authors":"Thanh-Canh Huynh, Chan Ghee Koh, Ying Min Low","doi":"10.1016/j.jsv.2025.119304","DOIUrl":"10.1016/j.jsv.2025.119304","url":null,"abstract":"<div><div>Impedance-based technique is a promising approach for structural health monitoring due to its high sensitivity to minor local damage, real-time monitoring capability, and cost-effectiveness. Traditional impedance-based methods rely on comparing the current impedance signal with a reference state, however the baseline characteristics may fluctuate under varying and noisy conditions, resulting in unreliable detection. An existing study proposed a reference-free impedance-based method by directly analyzing current-state impedance responses, allowing robust long-term monitoring by eliminating the need for baseline data. However, this method faces challenges for asymmetric structures, where additional mode conversions can obscure damage signatures and cause false detections. This study proposes an improved reference-free approach that enhances damage detection by extracting damage-sensitive features while filtering out irrelevant mode conversions. Numerical simulations on asymmetrical plate structures and a tidal turbine blade demonstrate the effectiveness of the proposed method, which consistently outperforms the existing reference-free technique, particularly in detecting minor damage in asymmetrical structures under highly damped and noisy conditions. The proposed method can be applied to a diverse range of structures, and its robustness and ease of implementation make it a promising solution for long-term structural health monitoring in complex environments.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119304"},"PeriodicalIF":4.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144596893","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

Origami-based acoustic metamaterial for low-frequency adjustable sound absorption 用于低频可调吸声的折纸声学超材料

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-11 DOI: 10.1016/j.jsv.2025.119334

Zhaorui Gao , Qing Ma , Jingbo Yang , Cheng Shen , Han Meng

{"title":"Origami-based acoustic metamaterial for low-frequency adjustable sound absorption","authors":"Zhaorui Gao , Qing Ma , Jingbo Yang , Cheng Shen , Han Meng","doi":"10.1016/j.jsv.2025.119334","DOIUrl":"10.1016/j.jsv.2025.119334","url":null,"abstract":"<div><div>It is generally difficult for conventional sound absorbing structures to meet the requirements of adjustable broadband low frequency sound absorption in practical applications. An origami-based micro-perforated sandwich sound absorbing metamaterial (OMSSM) is hence proposed in this paper to solve the problem of frequency variable sound absorption and extend low frequency sound absorption bandwidth. The foldable origami structures installed in the back cavities of the micro-perforated sandwich structure act as reconfigurable Helmholtz resonators, the resonance frequencies of the OMSSM are dramatically changed and can be continuously varied with the volume of origami cavities. An analytical model is firstly built to calculate the sound absorption coefficient of OMSSM, and the effectiveness of the analytical model is then verified through finite element simulation and experiment, with good agreement achieved. The adjustable sound absorption with the variation of folding ratio of the origami cavities is demonstrated after that based on the analytical model. Influences of key geometrical parameters on the sound absorption of the OMSSM are revealed through parameter analysis. The key geometrical parameters are subsequently optimized to broaden the frequency adjustable bandwidth to the fullest extent, and results show that the optimized OMSSM has an adjustable sound absorption band 84.3 % broader than that of non-optimized structure. The proposed OMSSM has great potential for applications in the field of active noise control.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119334"},"PeriodicalIF":4.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144663657","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

Multipole expansion approach for rotor noise prediction 转子噪声预测的多极展开法

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-11 DOI: 10.1016/j.jsv.2025.119317

Felice Fruncillo , Paolo Luchini , Flavio Giannetti

{"title":"Multipole expansion approach for rotor noise prediction","authors":"Felice Fruncillo , Paolo Luchini , Flavio Giannetti","doi":"10.1016/j.jsv.2025.119317","DOIUrl":"10.1016/j.jsv.2025.119317","url":null,"abstract":"<div><div>This paper presents a frequency-domain model of rotor tonal noise, based on a multipole expansion of the radiated field. The expressions for loading and thickness noise are derived in hovering condition, employing the results of compressible thin airfoil theory. The multipole coefficients are obtained as integrals of the boundary conditions in the plane of rotation, by considering the symmetry properties of the Green’s function. The terms of the expansion are independent of the observer point. As a result, once calculated, they allow for the solution to be obtained at any desired point in the field. This characteristic is not present in the main theories developed in the literature, and it allows for computational advantages. It is shown how the derived expressions can be traced back to Hanson’s helicoidal surface theory, which is used to validate the implementation. It results that even a single term in the expansion is capable of yielding accurate results in the far field. Conversely, the near field requires several coefficients of the series to achieve convergence, unless the low-frequency assumption is met. The chordwise compactness hypothesis is examined and a simplified model for preliminary calculations is proposed.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119317"},"PeriodicalIF":4.3,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604885","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

Tuned inerter viscoelastic liquid column dampers 可调谐干涉粘弹性液柱阻尼器

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-10 DOI: 10.1016/j.jsv.2025.119319

Sudip Chowdhury , Rama Debbarma , Sondipon Adhikari

{"title":"Tuned inerter viscoelastic liquid column dampers","authors":"Sudip Chowdhury , Rama Debbarma , Sondipon Adhikari","doi":"10.1016/j.jsv.2025.119319","DOIUrl":"10.1016/j.jsv.2025.119319","url":null,"abstract":"<div><div>Structural vibration control remains a major challenge in engineering, particularly for buildings exposed to dynamic excitations. While conventional Tuned Liquid Column Dampers (TLCDs) and inerter-based TLCDs offer passive damping solutions, they are limited in simultaneously optimising inertial and damping effects. This study proposes Tuned Inerter Viscoelastic Liquid Column Dampers (TIVLCDs), a novel class of passive dampers combining inerters with viscoelastic materials to enhance energy dissipation. Closed-form expressions for optimal design parameters are derived using statistical linearisation and <span><math><msub><mrow><mi>H</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span> optimisation. Frequency domain analyses show that the V-shaped TIVLCD achieves peak displacement reductions of 96.93% and 96.43%, and acceleration reductions of 78.40% and 81.82%, compared to TLCD and TLCDI, respectively. Time history analyses under real earthquake ground motions reveal displacement reductions of 27.35% and 29.36%, and acceleration reductions of 22.99% and 27.17%, for U-shaped and V-shaped TIVLCDs relative to TLCDI. These improvements are attributed to the enhanced coupling between inertial, viscoelastic, and gravitational effects. The findings demonstrate that TIVLCDs, particularly the V-shaped design, provide significantly better vibration and acceleration mitigation than existing solutions, establishing them as an effective and adaptable tool for passive structural control under seismic loading.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"617 ","pages":"Article 119319"},"PeriodicalIF":4.3,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654401","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

Adaptive generalized dispersive mode decomposition: A data-driven approach for nonlinear dispersive component extraction in mechanical systems 自适应广义色散模式分解：一种数据驱动的机械系统非线性色散分量提取方法

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-09 DOI: 10.1016/j.jsv.2025.119329

Hongbing Wang, Shiqian Chen, Wanming Zhai

{"title":"Adaptive generalized dispersive mode decomposition: A data-driven approach for nonlinear dispersive component extraction in mechanical systems","authors":"Hongbing Wang, Shiqian Chen, Wanming Zhai","doi":"10.1016/j.jsv.2025.119329","DOIUrl":"10.1016/j.jsv.2025.119329","url":null,"abstract":"<div><div>Dispersive signals are commonly encountered in mechanical systems and dispersion feature extraction is a critical task in various mechanical engineering applications such as fault diagnosis and nondestructive testing. However, traditional methods for decomposing dispersive signals, including generalized dispersive mode decomposition (GDMD) and nonlinear dispersive component decomposition, are heavily reliant on prior information such as initial group delay (GD), bandwidth parameters, and the number of modes. This reliance limits their adaptability in mechanical vibration signal analysis, particularly in extracting close dispersion features. To address these issues, this paper proposes a novel data-driven approach termed adaptive generalized dispersive mode decomposition (AGDMD). First, a frequency-varying low-pass filter based on dispersion compensation is constructed and then a fully data-driven GD estimation algorithm is proposed to determine effective initial GD. Subsequently, an adaptive bandwidth estimation strategy guided by initial GDs is devised to initialize and refine bandwidth parameters of the optimal dispersion compensation algorithm. Finally, according to the initial GDs and bandwidth parameters, the AGDMD adopts a recursive framework to sequentially extract nonlinear dispersive modes from the original signal. Simulated examples and real-life applications to railway fault diagnosis and Lamb wave analysis demonstrate that the proposed AGDMD has both high adaptability and good noise robustness, and can accurately extract close dispersive modes without excessive prior information.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119329"},"PeriodicalIF":4.3,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623452","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

Dispersion analysis in a 3D lattice elastic waveguide for the design of an absolute filter 三维晶格弹性波导色散分析用于绝对滤波器的设计

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-08 DOI: 10.1016/j.jsv.2025.119314

T. Bonneval , M. Lanoy , R. Tanays , L. Sanches , G. Michon , A. Pelat

引用次数: 0

Resonance and post-resonance backward whirl in intact and cracked rotor systems with rub-impact 含摩擦冲击的完整和裂纹转子系统的共振和后共振后旋涡

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-07 DOI: 10.1016/j.jsv.2025.119313

Rafath Abdul Nasar, Mohammad A. AL-Shudeifat

{"title":"Resonance and post-resonance backward whirl in intact and cracked rotor systems with rub-impact","authors":"Rafath Abdul Nasar, Mohammad A. AL-Shudeifat","doi":"10.1016/j.jsv.2025.119313","DOIUrl":"10.1016/j.jsv.2025.119313","url":null,"abstract":"<div><div>The whirling behavior in rotor systems is an indicator for rotor health monitoring. The abnormal whirling is the first sign for faults appearance in rotor systems. The excitation of backward whirling is associated with the shaft or bearing stiffness content. Nonsynchronous whirl near resonance speeds significantly affects rotor faults in rotor systems. The response of intact and cracked rotors in the presence of rotor-stator rubbing is significantly altered by the nonsynchronous whirling which further complicates the dynamical behavior of the rotor during its transient operation. In cracked rotors, the post-resonance backward whirl (Po-BW) excitation was proven to exist due to crack propagation and bearing anisotropy. Therefore, the influence of nonsynchronous whirl in association with rub-impact and breathing crack on the presence of Po-BW in intact and cracked rotor systems is numerically and experimentally investigated in the present research. The Jeffcott rotor and the finite element models are employed for numerical simulation during transient operation conditions. According to the obtained numerical and experimental whirl response results, the backward whirl phenomena can be now classified into three categories - pre-resonance, resonance and post-resonance backward whirls. Robust experimental evidence of the presence of Resonance-BW and Po-BW excitations in cracked and healthy rotor systems with rub-impact is analyzed which provides further insights on the effect of multiple faults on BW excitations.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119313"},"PeriodicalIF":4.3,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605514","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

Damping allocation and comfort-oriented suspension control for electrodynamic maglev systems 电动磁悬浮系统阻尼分配与舒适性悬架控制

IF 4.3 2区工程技术

Journal of Sound and Vibration Pub Date : 2025-07-07 DOI: 10.1016/j.jsv.2025.119311

Marius Pakštys , Keyvan Delfarah , Renato Galluzzi , Eugenio Tramacere , Nicola Amati , Andrea Tonoli

{"title":"Damping allocation and comfort-oriented suspension control for electrodynamic maglev systems","authors":"Marius Pakštys , Keyvan Delfarah , Renato Galluzzi , Eugenio Tramacere , Nicola Amati , Andrea Tonoli","doi":"10.1016/j.jsv.2025.119311","DOIUrl":"10.1016/j.jsv.2025.119311","url":null,"abstract":"<div><div>With the establishment of maglev technology in branches of the transport sector, further development has been motivated by the need to ensure competitiveness with other forms of travel. Factors such as infrastructure cost, maintenance, and passenger experience have become important to secure investment in new and existing projects. Regarding passenger comfort, studies have been made on the introduction of passive and active damping solutions in secondary suspensions of maglev vehicles, such that the capsule is isolated from vibrations induced by track irregularities. The present study demonstrates the possibility of modifying the relative damping with a dynamic testing stage mounted on a test bench of an electrodynamic levitation system. Moreover, skyhook damping is investigated regarding its effect on capsule acceleration. Maps for acceleration response considering a combination grid of skyhook damping and secondary suspension damping modification are computed to select a parameter set with improved passenger comfort characteristics. Stability is also investigated for the damping combination case, with a trade-off identified. Experimental results in time-domain are analysed and compared with model simulation data to validate the control schemes. Adequate conformity between experimental and numerical results is noted, and an improved comfort condition is demonstrated.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"618 ","pages":"Article 119311"},"PeriodicalIF":4.3,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589292","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