Journal of Sound and Vibration最新文献

{"title":"Vibration-weighted maximum correlated kurtosis deconvolution and latent cyclic pattern discovery for fault diagnosis of high-speed rail bogies","authors":"Peng Chen ,&nbsp;Yuhao Wu ,&nbsp;Junxiao Ma ,&nbsp;Ruijin Zhang ,&nbsp;Ge Xin ,&nbsp;Changbo He","doi":"10.1016/j.jsv.2026.119657","DOIUrl":"10.1016/j.jsv.2026.119657","url":null,"abstract":"<div><div>Real-world high-speed rail bogie vibration signals combine mechanical oscillations, deterministic periodic components (e.g., gear-mesh harmonics and wheel-rail interactions), environmental noise, and transients, making fault features hard to isolate. Diagnosis is further hindered by manual hyperparameter tuning, weak impulsive signatures at low Signal-to-Noise Ratio (SNR), overlapping spectral-temporal content with mode mixing, and high computational cost on long multi-channel records. We propose a multi-source vibration demodulation framework–an optimized Maximum Correlated Kurtosis Deconvolution (MCKD) with vibration-weighted grading distribution and Latent Cyclic Pattern Discovery (LCPD). The method couples spectral-negentropy-driven adaptivity for Minimum Entropy Deconvolution (MED)/MCKD filter length and regularization with wavelet-packet multiscale decomposition guided by correlation-kurtosis band selection, and periodic dynamic windows with a Vibration Amplitude-based Grading and Weighting Distribution (VAGWD), enabling adaptive deconvolution, enhanced weak-impulse extraction, and cycle-synchronous separation and quantification without empirical tuning. The LCPD module exploits envelope-cepstral cues, squared-envelope autocorrelation, and cyclic spectral coherence to recover hidden or time-warped periodicities under compound-fault conditions. Experiments on bogie datasets show higher diagnostic accuracy, greater noise robustness, and improved computational efficiency than MED, Multipoint Optimal Minimum Entropy Deconvolution Adjusted (MOMEDA), and baseline MCKD, enabling reliable and efficient compound-fault diagnosis in high-speed rail bogies.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"627 ","pages":"Article 119657"},"PeriodicalIF":4.9,"publicationDate":"2026-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079667","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}

{"title":"Register jumps on the clarinet: numerical and in-vitro investigation into basins of attraction and phase-tipping","authors":"Nathan Szwarcberg ,&nbsp;Tom Colinot ,&nbsp;Christophe Vergez ,&nbsp;Michaël Jousserand ,&nbsp;Léonie Maignan ,&nbsp;Anthia Patsinakidou ,&nbsp;Giordano Gatti ,&nbsp;Hrant Arzumanyan ,&nbsp;Pedro Faria Oliveira Morais","doi":"10.1016/j.jsv.2025.119579","DOIUrl":"10.1016/j.jsv.2025.119579","url":null,"abstract":"<div><div>When playing the clarinet, opening the register hole allows for a transition from the first to the second register, producing a twelfth interval. On an artificial player system, the blowing pressure range where the second register remains stable can be determined by gradually varying the blowing pressure while keeping the register hole open. However, when the register hole is opened while the instrument is already producing the first register, the range of blowing pressures that lead to a stable second register is narrower than the full stability zone of the second register. This phenomenon is investigated numerically by performing multiple hole openings at different times, for various values of the blowing pressure and the embouchure parameter. In some narrow regions of the control parameters space, the success of a register transition depends on the phase at which the hole is opened. This illustrates an instance of phase-tipping, where the limit cycle of the closed-hole regime may intersect multiple basins of attraction associated with the open-hole regimes. Furthermore, to assess the robustness of the basins of attraction, random noise is introduced to the control parameters before the register hole is opened. Results indicate that the equilibrium regime is more robust to noise than the other oscillating regimes. Finally, long-lasting transient quasiperiodics are investigated. The phase at which the hole is opened influences both the transient duration and the resulting stable regime.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119579"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023200","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}

{"title":"Scaling Up 3D elastic metamaterials with ultrawide band gaps: A modular approach with weight compensation","authors":"Berkay Acar,&nbsp;Sedef Nisan Otlu,&nbsp;Zafer Gokay Tetik,&nbsp;Cetin Yilmaz","doi":"10.1016/j.jsv.2026.119641","DOIUrl":"10.1016/j.jsv.2026.119641","url":null,"abstract":"<div><div>Size plays a crucial role in designing and realizing 3D phononic crystals and elastic metamaterials with ultrawide band gaps. Existing 3D designs with normalized bandwidth larger than 133.3% are typically fabricated from polymers by additive manufacturing in small sizes (lattice constant  ≤  50 mm). Achieving large bandwidths often requires thin ligaments (flexures), which can fail or deform significantly under self-weight when scaled up, affecting unit cell shape and normalized bandwidth. To mitigate stress and deformation problems at larger scales, a modular design is introduced, enabling separate production of high and low stress-bearing components for assembly. A 3D truss-like structure is formed using steel inertial amplification mechanisms as 600 mm truss elements. Optimization yields a wide stop band but results in thin flexures within these mechanisms. To minimize the stresses and deformations in the inertially amplified 3D truss structure, which weighs more than 100 kg, static weight compensation technique is proposed in which some of the flexures are prestressed to a targeted value before assembly. Consequently, very small static deflection is observed due to self-weight. The optimized 3D truss structure is manufactured and tested. It is revealed that the optimized design provides a complete ultrawide stop band for 3D excitations between 6.2 - 87.8 Hz. Despite the large size and weight, and the stress constraints, an ultrawide band gap (173.6%) is attained.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119641"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977914","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}

{"title":"Serration manufacturing effects on propeller trailing edge noise mechanisms","authors":"Jorge Santamaria ,&nbsp;Sylvain Belliot ,&nbsp;Marlène Sanjosé ,&nbsp;Romain Gojon ,&nbsp;Stéphane Moreau","doi":"10.1016/j.jsv.2026.119656","DOIUrl":"10.1016/j.jsv.2026.119656","url":null,"abstract":"<div><div>Trailing edge noise is an important broadband noise source of hovering UAV rotors, which can be reduced by trailing edge serrations. Ayton’s theoretical model provides predictions for serrated trailing edge noise generated by a fully turbulent flow over an infinitesimally thin plane. This study assesses the validity of these assumptions by considering the effects of serration installation and manufacturing. Several propellers of the same design were 3D printed and tested in an anechoic room, where far-field noise and aerodynamic performances were collected. The baseline configuration exhibits clear evidence of laminar boundary-layer instability noise. Cut-in and add-on serrations alleviate this noise mechanism. Similarly, to overcome the influence of laminar to turbulent transition over the blade surface, some propellers also include additional tripping elements to trigger the turbulence. Cut-in serrations experience additional vortex-shedding noise characterized by a Strouhal number based on the serration root thickness. The results show that serrations are a viable method to control trailing edge noise at low RPM, where broadband noise dominates over tonal noise. Finally, the analytical predictions successfully capture the noise reduction trends for the add-on serrations. In particular, the model can capture their frequency range of effectiveness and the relative variation of the mitigation with rotational speed. There is better agreement between the model and the experiments for the design that includes tripping. This outcome highlights the importance of considering the manufacturing method during the design phase.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119656"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145977916","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}

{"title":"Corrigendum to “Effects of non-uniform temperature field, mean flow, and noise on nonlinear thermoacoustic instabilities” [Journal of Sound and Vibration 624 (2026) 119498]","authors":"Jiasen Wei ,&nbsp;Sadaf Arabi","doi":"10.1016/j.jsv.2025.119623","DOIUrl":"10.1016/j.jsv.2025.119623","url":null,"abstract":"","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119623"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839604","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}

{"title":"Inverse bandgap design and vibration response control of periodically supported pipeline","authors":"Lin Zhang ,&nbsp;Tao Zhang ,&nbsp;Huajiang Ouyang ,&nbsp;Tianyun Li ,&nbsp;Haotian Chen","doi":"10.1016/j.jsv.2025.119611","DOIUrl":"10.1016/j.jsv.2025.119611","url":null,"abstract":"<div><div>Periodically supported pipelines typically have distinct bandgap properties, which have been exploited to suppress the excessive or unwanted vibration of fluid-filled pipeline systems. However, a mismatch between a pipeline system’s bandgap and the excitation frequency could lead to poor vibration control of well-designed bandgaps. Hence, this paper proposes a new inverse design method for the bandgap of a fluid-filled pipeline system with periodic elastic supports. In this method, the unit cell of the pipeline system is no longer a typical single-span pipe segment but is redefined to be a multi-span pipe segment, and the bandgap redesign of the pipeline system is recast as a stiffness modification problem for the elastic supports. Optimal stiffness modifications are directly obtained by maximizing the vibration amplitude attenuation at discrete excitation frequencies, which can be determined using the receptance method. A major advantage of the proposed method is that only the geometry and material parameters of the pipeline system are required to be known, neither needing to establish its numerical model with fine finite element meshes or involving time-consuming sample calculations. The effectiveness of the proposed method is demonstrated on the numerical model and experimental setup of a periodically supported pipeline system. This study is the first attempt to control the vibration amplitudes of an industrial pipeline at two excitation frequencies by simultaneously realizing two desired bandgaps.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119611"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839602","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}

{"title":"Vision-based dynamic mode decomposition of 3-RRR parallel manipulator with flexible links","authors":"Dingxu Guo ,&nbsp;Xiuting Sun ,&nbsp;Jian Xu ,&nbsp;Shu Zhang","doi":"10.1016/j.jsv.2025.119621","DOIUrl":"10.1016/j.jsv.2025.119621","url":null,"abstract":"<div><div>Dynamic modeling of parallel manipulator with flexible links (PMFL) based on the assumed mode method (AMM) is highly sensitive to the selection of mode shapes, which significantly influences the dynamic characteristics of the system. To address this challenge, this study investigates the 3-<u>R</u>RR PMFL experimental testbed and applies dynamic mode decomposition (DMD) for modal analysis using visual data. To tackle the limitations of standard DMD in handling system with external inputs, an alternative temporal evolution approach is proposed, enhancing reconstruction accuracy and preserving frequency separation of extracted modes. Additionally, an energy-based criterion for mode re-ranking is introduced to evaluate the energy contributions of different DMD modes, and sparse identification is employed to derive symbolic expressions for dominant mode shapes. Experimentally, instead of traditional hammer excitation, two typical operations are analyzed. Principal component analysis (PCA) is used to extract the dominant vibration direction of visual data, which serves as input for DMD analysis. Results reveal that DMD effectively separates vibration modes from the motion-deformation coupling displacement, outperforming proper orthogonal decomposition (POD) in interpretability. The findings provide valuable insights into mode shape selection in AMM modeling and offer a foundation for parameter analysis and controller design.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119621"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839606","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}

{"title":"Bouc-Wen modelling of asymmetric Stockbridge damper for the wind-induced vibration control of suspension bridge hangers","authors":"G. Bacci ,&nbsp;Ø.W. Petersen ,&nbsp;V. Denoël ,&nbsp;O. Øiseth","doi":"10.1016/j.jsv.2025.119617","DOIUrl":"10.1016/j.jsv.2025.119617","url":null,"abstract":"<div><div>Stockbridge dampers are traditionally employed in overhead transmission lines, but their application has recently expanded to suspension bridge hangers. In this context, their increased size, asymmetric configuration, vertical installation, and absence of dedicated design standards present new challenges in understanding their dynamic behaviour. Proper characterisation is essential to correctly dimension the device and determine its optimal placement on the structure. This study addresses these challenges by presenting a four-degree-of-freedom nonlinear model of an asymmetric Stockbridge damper using the Bouc-Wen hysteretic formulation to capture the messenger cables’ amplitude-dependent stiffness and energy dissipation. The model is calibrated and validated against experimental tests conducted on dampers equal to the ones installed on the hangers of the Hålogaland long-span suspension bridge. Unlike impedance-based black-box models, the proposed framework provides a physically consistent representation that can be directly embedded into system-level simulations of hanger-damper dynamics. The present framework can accurately reconstruct both the overall transmitted force and the internal dynamics, in close agreement with the measured responses across varying amplitudes and frequencies. In comparison to existing formulations developed for overhead line dampers, it requires no additional parameters but more effectively captures the amplitude-dependent variation of the damper’s dynamic behaviour, providing improved accuracy in representing its nonlinear characteristics.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119617"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839601","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}

{"title":"On the linear aeroacoustic response of a thermally-choked-flow nozzle to acoustic and entropy plane waves","authors":"Frédéric Olivon ,&nbsp;Aurelien Genot ,&nbsp;Jean-Étienne Durand ,&nbsp;Avraham Hirschberg ,&nbsp;Estelle Piot","doi":"10.1016/j.jsv.2025.119619","DOIUrl":"10.1016/j.jsv.2025.119619","url":null,"abstract":"<div><div>Unlike conventional geometric-throat configurations, thermal-throat choking is induced by volumetric heat addition from a flame, making this approach well suited to dual-mode ramjet applications. Such configurations, however, are potentially sensitive to combustion instabilities that can develop in the combustor, leading to the generation of acoustic and entropy waves which interact with the thermal throat, the outlet acoustic boundary condition. To study this interaction, the linear response of the thermal throat to acoustic or entropy plane-wave forcing is analyzed for five distinct configurations, highlighting several key findings. (i) The characterization of both acoustic-reflection and entropy-noise-production coefficients, along with the critical-throat boundary condition, reveals distinct acoustic behaviors influenced by the heat-release profile, heat-addition and geometric effects. (ii) A comparison between thermal and geometrical nozzles shows that thermally-choked configurations exhibit significantly lower acoustic-reflection coefficients at low frequencies. This acoustic damping is shown to result from the conversion of acoustic waves into entropy waves in the divergent duct, caused by the static temperature gradient. The entropy-noise-production coefficient of thermally-choked nozzle remains close to that of the isentropic configuration. (iii) A quasi-steady-state analytical model is also developed to predict the aeroacoustic reflection coefficients at very low frequencies for a thermal throat at the end of a straight tube. (iv) Additionally, the commonly used assumption of zero Mach-number fluctuations for geometric throat (<span><math><mrow><msubsup><mi>M</mi><mo>*</mo><mo>′</mo></msubsup><mo>=</mo><mn>0</mn></mrow></math></span>) is critically evaluated and shown to be valid only for isentropic flow in a geometric throat configuration. With a thermal throat, the Mach-number fluctuations at the throat position are shown to be mainly driven by the heat-release profile. (v) At high frequencies, all choking configurations asymptotically converge to an isentropic simple-wave acoustic-radiation behavior.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119619"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881720","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}

{"title":"A magnetically enhanced piecewise-linear nonlinear energy sink: Transient responses","authors":"Haining Li ,&nbsp;Kefu Liu ,&nbsp;Jian Deng","doi":"10.1016/j.jsv.2025.119622","DOIUrl":"10.1016/j.jsv.2025.119622","url":null,"abstract":"<div><div>This study proposes a magnetically enhanced piecewise-linear nonlinear energy sink (MPLNES) for simultaneous vibration suppression (VS) and energy harvesting (EH). The MPLNES integrates a small mass, a piecewise-linear spring (PLS), a grounded magnetic spring (GMS), and a grounded electromagnetic energy harvester (EMEH). Two-variable models are developed to characterize the restoring force of the GMS and the transduction factor of the EMEH. Comparative analyses of the MPLNES and a conventional piecewise-linear NES (PLNES) are conducted using time responses, wavelet spectra, and frequency-energy plots. Results show that the MPLNES outperforms the PLNES, particularly at low initial energy levels, due to the GMS-induced dynamic shift of the NES equilibrium position, which promotes earlier nonlinear engagement and lowers the TET threshold. A two-objective optimization further identifies optimal initial energies and load resistances for three NES configurations, demonstrating that the MPLNES provides robust VS and EH performance across varying energy levels, with the PLS playing a key role in sustaining TET. Experimental validations agree well with simulations, confirming the effectiveness of the MPLNES for dual-function applications.</div></div>","PeriodicalId":17233,"journal":{"name":"Journal of Sound and Vibration","volume":"626 ","pages":"Article 119622"},"PeriodicalIF":4.9,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145881807","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}