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The Self-tuning Fuzzy Sliding Mode Control Method for The Suspension System with The LSTM Network Road Identification J. Sound Vib. (IF 4.7) Pub Date : 2024-03-14 Xianhao Jiang, Tonghai Chen, Xinhan Xiong, Jing Zeng, Yu Zhao, Ruiqin Chen, Wanli Hao, Taihong Cheng
As an important component of semi-active suspension (SAS) systems, the built-in solenoid valve adjustable damper (BSVAD) is now widely used in the field because of its advantages of fast response, continuously adjustable damping, and lightweight design. However, only a few studies have discussed the BSVAD-modeling method. Hence, this study proposes a method for constructing an agent model using a feedforward
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Nonlinear State-Space Model of Self-excited forces for Bluff Body Aeroelasticity J. Sound Vib. (IF 4.7) Pub Date : 2024-03-14 Guangzhong Gao, Ledong Zhu, Jiawu Li, Ole Øiseth
This paper introduces a novel state-space model of nonlinear self-excited forces designed to capture amplitude dependency and unsteady effects in bluff body aeroelasticity. In the present form, this model represents a theoretical extension of the classical linear state-space model into the nonlinear regime, particularly relevant when a bluff section undergoes large amplitude oscillations. The proposed
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Variationally consistent Elishakoff beam theory: Two finite element implementations and application to flexural wave propagation in carbon nanotubes J. Sound Vib. (IF 4.7) Pub Date : 2024-03-13 F. Gómez-Silva, H. Askes
In this contribution, a variationally consistent novel Elishakoff beam theory considering long-range interactions has been developed, which succeeds in emulating the dynamic behavior of CNTs with both (5,5) and (10,10) armchairs, something that has not been attained previously. This theory is based on the modification of the Timoshenko one, and is taken here for the first time as a basis for two finite
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Fiber-steered acoustic black hole beam with low cut-on frequency and high stiffness J. Sound Vib. (IF 4.7) Pub Date : 2024-03-11 Koichi MIZUKAMI, Musashi SHIRATORI, Keiji OGI
This study proposes an acoustic black hole (ABH) beam with varying carbon fiber orientation and thickness for a low cut-on frequency and high stiffness. The proposed fiber-steered ABH beam contains a laminate with a varying fiber orientation as a junction between a tapered 90° laminate and uniform 0° laminate. The anisotropic viscoelastic properties of the carbon fiber-reinforced plastic were identified
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Multimodal vibration damping of a three-dimensional circular ring coupled to analogous piezoelectric networks J. Sound Vib. (IF 4.7) Pub Date : 2024-03-11 Alan Luo, Boris Lossouarn, Alper Erturk
Analogous piezoelectric networks have been shown to be effective for multimodal vibration attenuation in structures, including beams, plates, and rings. Previous studies for rings have only accounted for in-plane transverse vibration attenuation and disregarded the out-of-plane vibration modes. Furthermore, these previous numerical models and experiments have only been studied on thin rings, which
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A robust probabilistic approach to stochastic subspace identification J. Sound Vib. (IF 4.7) Pub Date : 2024-03-11 Brandon J. O’Connel, Timothy J. Rogers
Modal parameter estimation of operational structures is often a challenging task when confronted with unwanted distortions (outliers) in field measurements. Atypical observations present a problem to operational modal analysis (OMA) algorithms, such as stochastic subspace identification (SSI), severely biasing parameter estimates and resulting in misidentification of the system. Despite this predicament
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Frequency assignment of an assembled structure through links of its substructures J. Sound Vib. (IF 4.7) Pub Date : 2024-03-09 Shike Zhang, Huajiang Ouyang
Structural modifications for assigning desirable natural frequencies and modes are an effective passive vibration control strategy. In many assembled structures, the substructures, which may come from different manufacturers/suppliers or have intended individual functions, do not allow modifications or are difficult to modify. In such common situations, designing proper links or joints used for assembling
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Controllable Flexural Wave in Laminated Metabeam with Embedded Multiple Resonators J. Sound Vib. (IF 4.7) Pub Date : 2024-03-08 Xinyue Wang, Guifeng Wang, Zhenyu Chen, C.W. Lim, Shuang Li, Cheng Li
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Tunable shunting periodic acoustic black holes for low-frequency and broadband vibration suppression J. Sound Vib. (IF 4.7) Pub Date : 2024-03-07 Xu Chen, Yan Jing, Jinglei Zhao, Jie Deng, Xijun Cao, Huayan Pu, Huajun Cao, Xiaoxu Huang, Jun Luo
Acoustic Black Holes (ABH) embedded within structures can efficiently damp vibrations above the cut-on frequency but fails below it, particularly when the flexural wavelength exceeds the size of the ABH. Therefore, addressing low-frequency vibration mitigation becomes imperative. Periodic ABH structures and shunt damping have been employed individually and proved effective, yet their combined application
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Dissipation behavior of granular balls in a horizontally vibrated closed container J. Sound Vib. (IF 4.7) Pub Date : 2024-03-07 Kai Zhang, Meng Chen, Wenzhe Li, Huajia Zhong
The dissipation behavior of granular balls in a quasi-two-dimensional closed container subjected to horizontal vibration is investigated by discrete element method (DEM) in this study. The phase diagrams and damping contours of vibrated granular balls within the interested range of excitation parameters are obtained, which indicates two high damping granular phases (HDGPs), i.e., sloshing state and
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On the bandgap mechanism of periodic acoustic black holes J. Sound Vib. (IF 4.7) Pub Date : 2024-03-07 Jie Deng, Oriol Guasch
Acoustic black holes (ABHs) are primarily intended to eliminate the propagation of bending waves in structures although the same physical principles have been used to reduce the propagation of acoustic waves in ducts. The latter are usually referred to as sonic black holes (SBHs). ABHs (and also SBHs) only work well above a certain cut-on frequency which depends on their size compared to the incident
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Acoustic metasurface development for transmitted wavefront manipulation using a level set-based topology optimization approach J. Sound Vib. (IF 4.7) Pub Date : 2024-03-06 Jingwen Guo, Haoyi Cheng
A customized transmission-type metasurface design is developed for high-efficiency wavefront modulation by employing a level set-based topology optimization approach. The metasurface consists of periodically arranged supercells made of discrete unit cells aiming to form a precisely linear phase gradient of the transmitted wave ranging from 0 to with high transmittances. The configuration of each unit
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Reflective vortex focusing for acoustic contact-free object rotation J. Sound Vib. (IF 4.7) Pub Date : 2024-03-05 Yongdu Ruan, Jing Zhu, Qinhao Lin, Yuqi Wang, Dikui Zhou, Shaobo Wang, Chong Li, Junhui Shi, Ruimin Chen
The use of acoustic vortex waves with angular momentum is a promising means of transferring mechanical torque to an object without making any physical contact. However, the existing passive-conversion vortex lenses are unable to produce strong acoustic radiation torque. To address this issue, we propose a flat reflector sculpted by spiral grooves. It reflects and converts incident waves into vortex-focusing
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A direct multimode method for the reduction of vibration induced oscillations on force signals during “pseudo-rigid” water impact experiments J. Sound Vib. (IF 4.7) Pub Date : 2024-03-04 Alan Tassin, Florian Hulin, Nicolas Jacques
A new experimental method is proposed to improve the force measurements during water impact experiments ( water entry or wave impact tests) carried out with “pseudo-rigid” mock-ups. Despite the efforts of making the mock-up as stiff as possible, the impulsive nature of water impact loads may induce a transient response of the mock-up with a broad frequency content and a perturbation of the force measurements
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Analysis of the vortex-induced vibration response characteristics of riser under the soft suspension evacuation condition J. Sound Vib. (IF 4.7) Pub Date : 2024-03-04 Liangjie Mao, Juxi Yan, Junlong Zhu, Yufa He
This paper establishes a nonlinear dynamic model for a suspended riser under the condition of considering realistic configurations, based on the principles of virtual work and Hamilton's variational principle. The nonlinearity of the model is manifested by considering vortex-induced vibration in the cross flow (CF) and in-line (IL) directions, as well as large deformations, taking into account the
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Compressed covariance sensing for blade tip timing measurement J. Sound Vib. (IF 4.7) Pub Date : 2024-03-04 Jiahui Cao, Zhibo Yang, Xingwu Zhang, Xuefeng Chen
Due to harsh working conditions, rotating blades are prone to failures. Thus, it is urgently needed to monitor blade health. Blade tip timing (BTT) is a promising non-contact vibration technique for rotating blades owing to its high efficiency and long service time. However, due to severe undersampling, traditional spectrum analysis methods are ineffective in identifying characteristic parameters and
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Single-tone Aerodynamic Noise Source Separation for Gas Turbines J. Sound Vib. (IF 4.7) Pub Date : 2024-03-04 Wei Cheng, Chao Song, Bicheng Bo, Shuang Chen, Mingsui Yang, Yan Wang, Baijie Qiao, Xuefeng Chen, Jun Wang, Liqi Yan
The aerodynamic noise in the gas turbines primarily originates from the pulsations generated by the air within compressors, and it is a combination of single-tone noise caused by the pressure fluctuation of blades and broadband noise generated by interactions between turbulent fluid and blades. Therefore, the separation of single-tone noise is vital in predicting the contribution of each noise source
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Multizone sound field reproduction using pressure matching with sparse equivalent source J. Sound Vib. (IF 4.7) Pub Date : 2024-03-03 Xin Wen, Haijun Wu, Weikang Jiang
Multizone sound field reproduction aims to create different acoustic environments in multiple spatial zones, allowing listeners to enjoy their individual sounds without being disturbed by sound from other zones. The conventional pressure matching method is used in practice to reproduce the desired sound field by minimizing the sound field error with a limited number of control points, whose reproduction
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Enhanced adaptive linear chirplet transform for crossing frequency trajectories J. Sound Vib. (IF 4.7) Pub Date : 2024-03-01 Cristian López, Keegan J. Moore
Time-frequency representation (TFR) is of great significance for capturing and analyzing nonlinear or nonstationary multi-component signals. The adaptive linear chirplet transform (ALCT) has proven effective for dealing with signals with frequencies that intersect, providing accurate estimations of instantaneous frequencies (IFs) for both intersecting and non-intersecting components. However, challenges
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Frequency sweep study on the generation of dual-mode second harmonics (DMSH) on an isotropic nonlinear elastic cylindrical rod by T(0,1) mode J. Sound Vib. (IF 4.7) Pub Date : 2024-02-29 Krishnadas V Kanakambaran, Krishnan Balasubramaniam
Nonlinear ultrasonic (NLU) guided wave (GW) measurements are more sensitive to microscale defects than linear measurements. This nonlinear phenomenon is helpful for early-stage damage detection in material for nondestructive evaluation (NDE) and structural health monitoring (SHM) applications. The amplitude of the higher harmonics generated in the material serves as the basis for the NLU measurement
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Modeling and analysis of beam-spring magnetically coupled bistable energy harvester for broadband vibration energy harvesting J. Sound Vib. (IF 4.7) Pub Date : 2024-02-29 Qiubo Jiang, Chuanyun Yu, Yang Zhou, Ziqian Zhao, Qiang Gao, Beibei Sun
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Experimental application of Pseudo-Equivalent Deterministic Excitation method through an impact test J. Sound Vib. (IF 4.7) Pub Date : 2024-02-29 Giulia Mazzeo, Giuseppe Petrone, Sergio De Rosa, Francesco Franco, Mohamed N. Ichchou, Olivier Bareille
The prediction of the vibrational response of a structure subjected to an aerodynamic load is fundamental for assessing preliminary structural design and addressing typical structural problems such as fatigue and structure-borne sound. In literature, there are already alternative experimental methods capable of reproducing the response to a TBL excitation without using wind tunnel facilities. One of
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Design and control of high-speed railway bridges equipped with an under-deck adaptive tensioning system J. Sound Vib. (IF 4.7) Pub Date : 2024-02-27 Arka P. Reksowardojo, Gennaro Senatore, Manfred Bischoff, Lucio Blandini
This work investigates the application of an external adaptive tensioning (EAT) system for high-speed railway (HSR) bridges. The design of HSR bridges involves strict displacement and acceleration limits, which typically results in oversizing. The EAT system comprises under-deck cables deviated by compressive struts that are equipped with linear actuators. Since the cable is eccentric to the bridge
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Operational transfer path analysis based on neural network J. Sound Vib. (IF 4.7) Pub Date : 2024-02-27 Uyeup Park, Yeon June Kang
Noise, vibration, and harshness (NVH) issues induced by vibrating source to receivers are sensitive concerns in the automotive industry, significantly determining the product quality. Transfer path analysis (TPA) serves as a crucial tool in addressing these concerns. However, classical and component-based TPA methods necessitate the measurement of all transfer functions associated with the NVH phenomenon
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Experimental investigation of active local blowing on the aerodynamic noise reduction of a circular cylinder J. Sound Vib. (IF 4.7) Pub Date : 2024-02-26 Reza Maryami, Elias J.G. Arcondoulis, Jing Guo, Yu Liu
The strategic implementation of local blowing (LB) around a circular cylinder within a uniform flow has demonstrated its capacity to effectively suppress aerodynamic noise under specific blowing conditions. This study aimed to comprehend the underlying mechanism driving noise reduction through the synchronisation of far-field noise with surface pressure fluctuations, which were measured at various
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A novel time-domain approach for identifying nonlinear structural dynamical system with explicit model based on observer/Kalman filter identification method J. Sound Vib. (IF 4.7) Pub Date : 2024-02-25 Xiang Liu, Guoping Cai
In this paper, a novel time-domain method for identifying nonlinear structural dynamical system with explicit model is proposed. By exploiting the observer/Kalman filter identification (OKID) and nonlinear feedback interpretation, the nonlinear parameters of the system are estimated accurately. The effectiveness of the proposed nonlinear OKID (NOKID) method is demonstrated through three numerical examples
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Analysis of virtual inerter-based passive absorber for active chatter control J. Sound Vib. (IF 4.7) Pub Date : 2024-02-24 Hakan Dogan, Muhammet Ozsoy, Erdem Ozturk, David J. Wagg, Neil D. Sims
This paper presents a novel approach to active chatter control in milling operations using a new concept called the virtual inerter-based dynamic vibration absorber (VIDVA). While passive control methods, such as tuned mass damper (TMDs), have their merits, they may not provide optimal performance and adaptability in certain scenarios. Moreover, the realisation of an idealised inerter-based absorber
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A Bloch analysis extended to weakly disordered periodic media J. Sound Vib. (IF 4.7) Pub Date : 2024-02-24 Yilun Li, Régis Cottereau, Bing Tie
This paper develops an asymptotic method to predict the dispersion curves of a weakly disordered medium. The disordered coefficients of the original acoustic equation are related to periodic coefficients through a change of variables, assumed asymptotically close to the identity. At leading order in the amplitude of the disorder, the medium is driven by an acoustic equation with periodic coefficients
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Vibration isolation by relative resonance perceived in combination of rigid bodies and elastic beams J. Sound Vib. (IF 4.7) Pub Date : 2024-02-22 Abhigna Bhatt, Somya Ranjan Patro, Arnab Banerjee
This paper develops a novel low-frequency vibration isolation device based on rigid body dynamics called a Rigid Elastic Vibration Isolator (REVI). The REVI model is realized by coupling four elastic beams with two rigid bodies monolithically made using 3D printing. The system operates based on the vibration of the intermediate rigid bodies, which leads to the anti-resonance phenomenon at low frequencies
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On the monopolar and dipolar acoustic responses of a passive single point scatterer subjected to low-Mach-number grazing air flow J. Sound Vib. (IF 4.7) Pub Date : 2024-02-22 Yang Meng, Thomas Humbert, Vicente Romero-García, Jean-Philippe Groby, Gwénaël Gabard
The acoustic response of a passive single point scatterer under grazing flow is shown theoretically and experimentally to have both monopolar and dipolar contributions. The monopolar response is dominated by the pressure-induced flux , which is related to the specific acoustic impedance of the point scatterer as . By contrast, the main dipolar response is the pressure-induced force , which is experimentally
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Dynamic characteristics investigation of a dual rotor-casing system considering the comprehensive stiffness of the intermediate bearing J. Sound Vib. (IF 4.7) Pub Date : 2024-02-20 Kunpeng Liu, Donghua Wang, Wanyou Li, Xiujiang Shi, Qingchun Zhang
This paper focuses on the vibrational properties of a dual rotor-casing coupled system with nonlinear clearance in the intermediate bearing, considering both the oil film stiffness and Hertzian contact stiffness between rolling elements and raceways. A comprehensive stiffness model for the intermediate bearing has been developed based on elastohydrodynamic lubrication (EHL) and Hertz contact theory
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Exploit the study of the scenarios for the control of the response of single-degree-of-freedom systems with bumpers J. Sound Vib. (IF 4.7) Pub Date : 2024-02-15 Giulia Stefani, Maurizio De Angelis, Ugo Andreaus
In earthquake-prone areas, seismic isolation systems are designed to preserve structural safety and prevent occupants’ injury and properties’ damage. However, seismically isolated structures can be subject to large displacements relative to the ground under earthquakes, which lead to define two problems, the first problem concerns to excessive displacements, whereas the second problem relates to excessive
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Broadening the frequency response of a Duffing-type piezoelectric shunt by means of negative capacitance J. Sound Vib. (IF 4.7) Pub Date : 2024-02-13 J.A. Mosquera-Sánchez, O. Alfahmi, A. Erturk, C. De Marqui Jr.
Duffing oscillators are increasingly explored for vibration and noise reduction, owing to their wideband properties and rich dynamic behavior. Applications involving piezoelectric treatments typically take advantage from using negative capacitances, as their effect is similar to enhanced electromechanical coupling. This paper integrates negative capacitance to a recently introduced synthetic impedance-based
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Energy-based analysis of quadratically coupled double pendulum with internal resonances J. Sound Vib. (IF 4.7) Pub Date : 2024-02-13 Š. Dyk, J. Rendl, L. Smolík, R. Bulín
This article presents an energy-based method for examining the dynamics of an autoparametric double pendulum with quadratic coupling. The method is based on decomposing the total energy (Hamiltonian) into partial terms and studying these terms in the time domain. The article then demonstrates using this method to analyse internal resonances in various regimes, including regular periodic, quasiperiodic
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Model-free finite frequency H∞ control for active chatter suppression in turning J. Sound Vib. (IF 4.7) Pub Date : 2024-02-13 Gaowei Han, Haifeng Ma, Yang Liu, Zhanqiang Liu, Qinghua Song
Regenerative chatter is an extremely harmful phenomenon in machining, which generally results in overcut and rapid tool wear. This paper presents the design, analysis, and verification of a novel model-free finite frequency band (MFFFB) control algorithm, which is dedicated to chatter suppression of turning process. The proposed MFFFB controller is established by utilizing the reinforcement -learning
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Proportional-retarded control of a quasi-zero-stiffness vibration isolator J. Sound Vib. (IF 4.7) Pub Date : 2024-02-12 Jiazhi Cai, Qingbin Gao, Xujie Zhang
This paper explores the control design and performance analysis of an active quasi-zero-stiffness vibration isolator utilizing the proportional-retarded (PR) control architecture. The PR architecture replaces the conventional “derivative” term in the proportional-derivative (or displacement-velocity) controller with the novel “retarded (time-delayed)” term, which is a new and effective way of active
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Control of friction induced oscillation by displacement feedback with a second order filter J. Sound Vib. (IF 4.7) Pub Date : 2024-02-11 Gautam Kumar, Anindya Malas
The present work utilizes a displacement feedback control strategy to mitigate the friction driven stick-slip vibration of a mechanical system with single degree of freedom. The stick-slip vibration is primarily caused by the decrease in friction force due to the changes in velocity of the moving surface. This phenomenon, also known as Stribeck effect, can have a negative impact on the system's performance
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Effect of forward kinematics on the motion-trajectory oscillations and inertia forces J. Sound Vib. (IF 4.7) Pub Date : 2024-02-09 Hao Ling, Ahmed Shabana
In vehicle-motion scenarios, non-negligible centrifugal-force component that cannot be balanced by the gravity force may develop, leading to increase in wheel-contact forces. This inertia-force component, which depends on vehicle forward velocity and oscillation amplitude, can arise when the vehicle negotiates straight road or railroad track. An approach based on the and (RMT) is introduced in this
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The flow-induced structural vibration noise suppression mechanism of a wing–plate model by the junction suction and trailing edge blowing J. Sound Vib. (IF 4.7) Pub Date : 2024-02-09 Wenbo Liu, Yongwei Liu, Dejiang Shang, Qikai Qin, Chen Niu
At medium to high speeds, the flow-induced structural vibration noise generated by structural vibration under the excitation of the turbulent fluctuating pressure can seriously damage the acoustic performance of underwater vehicles. In this paper, we have proposed a new and noiseless method, called junction suction and trailing edge blowing (JSTB), to reduce the flow-induced structural vibration noise
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Nonlinear dynamics and band gap evolution of thin-walled metamaterial-like structures J. Sound Vib. (IF 4.7) Pub Date : 2024-02-08 R. Augello, E. Carrera
This paper explores the dynamic behavior of metamaterial-like structures by investigating the evolution of their band gap under the influence of geometrical nonlinearities in the large displacement/rotations field. The study employs a unified framework based on the Carrera Unified Formulation (CUF) and a total Lagrangian approach to develop higher-order one-dimensional beam theories that account for
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Decentralized modular semi-active controller for suppression of vibrations and energy harvesting J. Sound Vib. (IF 4.7) Pub Date : 2024-02-08 Dominik Pisarski, Łukasz Jankowski
The study investigates the problem of decentralized semi-active control of free vibration. The control scheme is designed for implementation in a modular controller architecture, where a collection of subcontrollers is employed, with each subcontroller being associated with a subsystem that represents a component of the vibrating structure. Each subcontroller uses state feedback from adjacent subsystem
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Free vibration of variable-thickness plates via adaptive finite elements J. Sound Vib. (IF 4.7) Pub Date : 2024-02-07 Martino C. Moruzzi, Maria Cinefra, Sara Bagassi
New technologies, such as additive manufacturing combined with topology optimisation or bio-inspired design, can produce lightweight structures with better dynamical properties but more complex geometries. Analysing these components with the finite element method can become time-consuming because of fine 3D meshes. By exploiting the node-dependent kinematic approach of Carrera’s unified formulation
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Dynamic behavior modeling and energy conversion characteristic analysis of a thermoacoustic-piezoelectric generator with the consideration of thermal and viscous losses J. Sound Vib. (IF 4.7) Pub Date : 2024-02-07 Fanhao Guo, Jingtao Du, Yang Liu
The amalgamation of thermoacoustic and piezoelectric principles represents a promising approach to bolster energy harvesting capabilities, offering a viable solution to address the increasingly pressing environmental concerns and energy shortages. This research introduces a thermoacoustic piezoelectric generator, serving as a versatile platform for the efficient interplay of thermal, acoustical, mechanical
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A poro-elastic model of sound propagation in granular materials J. Sound Vib. (IF 4.7) Pub Date : 2024-02-07 Zhuang Mo, Guochenhao Song, Tongyang Shi, J. Stuart Bolton
The dynamics of granular materials have been studied for many years, however, they have recently drawn attention for their unique response to acoustic excitation, and thus their potential applications in acoustics and noise and vibration control. For example, porous granules like zeolite and activated carbon have been applied to enhance the performance of loudspeakers at low frequencies. The reliable
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Three-dimensional computation for flow-induced vibrations of two circular cylinders in tandem arrangement with narrow spacing J. Sound Vib. (IF 4.7) Pub Date : 2024-02-07 Norio Kondo
Flow-induced vibrations of two circular cylinders in tandem arrangement which are mounted in a three-dimensional flow field are investigated at a high Reynolds number of 20,000. A third-order upwind finite element scheme and the arbitrary Lagrangian–Eulerian (ALE) formulation are used to solve the three-dimensional incompressible Navier–Stokes equations. Two circular cylinders which are treated as
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Broadband low-frequency sound absorption via Helmholtz resonators with porous material lining J. Sound Vib. (IF 4.7) Pub Date : 2024-02-06 Weitao Zhang, Fengxian Xin
An acoustic metamaterial consisting of Helmholtz resonators with porous material lining (HRPL) is proposed for broadband low-frequency sound absorption. A theoretical model based on the double porosity theory is developed to study the absorption performance of the HRPL, which is successfully verified by numerical simulations and experiment tests. The results show that the porous material lining helps
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Feedback linearisation of mechanical systems using data-driven models J. Sound Vib. (IF 4.7) Pub Date : 2024-02-06 Merijn Floren, Koen Classens, Tom Oomen, Jean-Philippe Noël
Linearising the dynamics of nonlinear mechanical systems is an important and open research area. A common approach is feedback linearisation, which is a nonlinear control method that transforms the input–output response of a nonlinear system into an equivalent linear one. The main problem with feedback linearisation is that it requires an accurate first-principles model of the system, which are typically
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[formula omitted] adaptive aeroelastic control of an unsteady flapped airfoil in the presence of unmatched nonlinear uncertainties J. Sound Vib. (IF 4.7) Pub Date : 2024-02-06 S. Mozaffari-Jovin, R.D. Firouz-Abadi, J. Roshanian
This work develops an adaptive control design for a nonlinear aeroservoelastic system despite general unmatched uncertainties. To our knowledge, the unmatched condition in that kind of controllers has yet received no attention in aeroservoelasticity. The considered model is a prototypical wing-flap section with flap inertial coupling and structural nonlinearities concurrently in pitch and plunge. Moreover
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A hybrid multi-scale/finite element method in arbitrary Lagrangian-Eulerian framework for predicting nonlinear structural-acoustic responses of a large-deformable beam in fluid J. Sound Vib. (IF 4.7) Pub Date : 2024-02-05 Guoxu Wang, Yegao Qu, Yapeng Li
This paper introduces a novel hybrid multi-scale/arbitrary Lagrangian-Eulerian finite element method (HMS/ALE-FEM) for addressing the nonlinear vibro-acoustic problem of a large-deformed beam in an infinite fluid. In the HMS/ALE-FEM, the vibrational response of the beam is tackled through modal superposition and a temporal multi-scale approach, while the acoustic wave emitted from the beam is addressed
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Piezoelectric driven split pad squeeze film damper for the suppression of sudden unbalanced vibrations in rotor system J. Sound Vib. (IF 4.7) Pub Date : 2024-02-05 Yangyan Zhang, Guangfu Bin, Xueliang Lu, Qingxiong Lu, Hao Fang, Yang Pan
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Traveling Wave Controllers on beams and plates using piezoelectric actuators J. Sound Vib. (IF 4.7) Pub Date : 2024-02-05 D, a, v, i, d, , A, ., , A, n, d, e, r, s, o, n
Uncontrolled beams and plates often perform poorly as sound radiating structures because of their resonant modes, creating a frequency response with sharp peaks and nulls as well as rapid changes in acoustic directionality. An active control technique known as Traveling Wave Control (TWC) has been previously demonstrated to perform well at forcing beams and plates to vibrate without modes, as though
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Vibration model combined with natural frequency characteristics of cylindrical roller bearings with spalling defects J. Sound Vib. (IF 4.7) Pub Date : 2024-02-04 Xinyu Huang, Weizheng Zhao, Qihao Zhou, Zengtong Liang, Gang Gao, Feiyun Cong
The modeling of early spalling defects in cylindrical roller bearings (CRB) is a challenging problem in fault diagnosis. Due to the absence of prominent "drop-in" excitation, accurately describing the signal characteristics of the early failure mechanism model for CRBs becomes difficult. In this paper, the failure of cylindrical roller bearings due to spalling caused by fatigue is a frequent occurrence
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Emergence of chaos and its control in a dissipative dielectric elastomeric membrane system under periodic loads J. Sound Vib. (IF 4.7) Pub Date : 2024-02-03 Subrat Kumar Behera, Rashi Aditi Ranjan, Somnath Sarangi, Arun Kumar Samantaray, Ranjan Bhattacharyya
Dielectric elastomer (DE) is a type of soft material that possesses voltage-induced deformation. Irregular vibrations in a circular DE membrane with damping under periodic loading are investigated. The modified Lagrange equation is used to develop the dynamical model for the membrane system using Gent strain energy density function. The resulting governing equation describes axisymmetric motion. Under
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Corrigendum to “Acoustic behaviour of micro-perforated panel backed by shallow cavity under fully developed grazing flow” [Journal of Sound and Vibration 569 (2024) 117985] J. Sound Vib. (IF 4.7) Pub Date : 2024-02-02 Ying Li, Yat Sze Choy
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Analytical vibration modelling and solution of bars with frictional clamps J. Sound Vib. (IF 4.7) Pub Date : 2024-02-02 Mertol Tüfekci, Yekai Sun, Jie Yuan, Chris Maharaj, Haibao Liu, John P. Dear, Loïc Salles
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An investigation of optimal sensor locations for multi-type sensors considering modeling uncertainties by Bayesian system identification J. Sound Vib. (IF 4.7) Pub Date : 2024-02-02 S. Adarsh, Samit Ray-Chaudhuri
This study investigates optimal sensor locations using multi-type sensors for strain recovery. Weighted least squares estimation is used for strain recovery, and the optimal sensor locations are evaluated by minimizing the sum of the covariance of modal displacement coordinates. Here, modeling uncertainty is taken into account by using Bayesian system identification. The present study evaluates multiple
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Efficient electromechanical spectral element model using zigzag kinematics for Lamb wave simulation in composite strips with piezo patches J. Sound Vib. (IF 4.7) Pub Date : 2024-02-02 Mayank Jain, Santosh Kapuria
Lamb wave-based structural health monitoring requires fast and accurate simulation tools for guided wave propagation in structures. In this article, a computationally efficient multiphysics time-domain spectral element (TDSE) model is presented for actuation, propagation, and sensing of Lamb waves in laminated composite strips (beams and panels) integrated with surface-bonded or embedded patch piezoelectric
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Shape optimization with adaptive Geometry Independent Field approximaTion (GIFT) in 3D time-harmonic acoustics J. Sound Vib. (IF 4.7) Pub Date : 2024-02-02 Javier Videla, Ahmed Mostafa Shaaban, Elena Atroshchenko
In this work, an adaptive shape optimization is developed using Geometry Independent Field approximaTion (GIFT) for 3D acoustics problems. The geometry-independent field approximation, using Non-uniform Rational B-splines (NURBS) to model the geometry, and Polynomial-splines over Hierarchical T-meshes (PHT-splines) to model the field space, are employed for 3D shape optimization problems in the context