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Sliding mode disturbance observer based control with arbitrary convergence time J. Vib. Control (IF 2.8) Pub Date : 2024-04-18 Seyyed Sajjad Moosapour
In this study, an arbitrary finite-time backstepping control method for a class of uncertain nonlinear systems in the presence of external disturbance is proposed based on disturbance observer. Motivated by the desire to attain external disturbance compensation, a sliding mode disturbance observer with arbitrary convergence time is presented to estimate the disturbance. This arbitrary prespecified
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IGFT-MHCNN: An intelligent diagnostic model for motor compound faults based decoupling and denoising of multi-source vibration signals J. Vib. Control (IF 2.8) Pub Date : 2024-04-17 Xiaoyun Gong, Zeheng Zhi, Yiyuan Gao, Wenliao Du
In view of the insufficient representation of single source signals for multi-point compound fault and the nonlinear strong coupling of vibration signals in motor transmission system, the inverse graph Fourier transform and improved multi-head convolutional neural network (IGFT-MHCNN) diagnostic model–based decoupling and denoising of multi-source vibration signals is proposed. The MHDCNN is constructed
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A method based on DWRNet and MGAU for RUL prediction of bearing with few samples J. Vib. Control (IF 2.8) Pub Date : 2024-04-17 Xiaoxia Yu, Zhigang Zhang, Baoping Tang, Minghang Zhao, Zhaowei Xiang, Xuecheng Wang, Xiaohai Wang
Accurately predicting the remaining useful life (RUL) of a bearing is crucial in the prognostics and reliability management of machinery. Owing to the cost of wind power operation and maintenance and commercial barriers, collecting early failure samples of gearbox bearings is costly. Accordingly, the prediction of the RUL of bearings with few samples remains a challenging problem. To address this challenge
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Effects of interference fit variation on dynamic characteristics of full ceramic ball bearing rotor system J. Vib. Control (IF 2.8) Pub Date : 2024-04-17 Liuwang Gao, Ke Zhang, Zhan Wang, Liqi Zhang
Bearing fit is one of the key aspects in determining the performance of FCBB (full ceramic ball bearing), which affects FCBB internal contact condition and support stiffness. In this paper, the interference fit value variations of FCBB induced by the centrifugal displacement and thermal deformation is calculated, the mapping relationship between interference fit and internal clearance is established
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Vibration response of in-vacuo tuneable structured fabrics J. Vib. Control (IF 2.8) Pub Date : 2024-04-16 Emiliano Rustighi, Paolo Gardonio, Sofia Baldini, Ciro Malacarne, Matteo Perini
This paper presents a first survey on the vibration response of beam-like specimens formed by a vacuum plastic bag with single-layer or double-layer 3D-printed structured fabrics encompassing spherical-octahedra, octahedra and cubes truss-like rigid elements. The study reports a comprehensive analysis of the bending stiffness and energy dissipation properties with respect to the level of vacuum as
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Shunted piezoelectric patch adaptive vibration absorber set to maximise electric power absorption: A comparison between parallel and series RL-shunts J. Vib. Control (IF 2.8) Pub Date : 2024-04-16 Paolo Gardonio, Gabriel Konda Rodrigues
This paper presents a comparative study on two types of shunted piezoelectric patch adaptive vibration absorbers, which can be bonded in batches on thin-walled structures to control the broad-band resonant response of low order flexural modes. The self-contained control units are formed by a thin piezoelectric patch connected either to a series or to a parallel resistive-inductive (RL) network. The
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Mitigation effect of guide vanes on the vortex-induced vibration of a long-span closed-box girder suspension bridge J. Vib. Control (IF 2.8) Pub Date : 2024-04-16 Ming Li, Xiongwei Yang, Haicheng Zhang, Hao Zhang, Tianyi Zhang, Mingshui Li
This paper investigates the VIV responses and triggering mechanisms of a closed-box girder by wind tunnel experiments and computational fluid dynamics (CFD) simulations. The effects of handrails, gantry rails, and guide vanes (GVs) on the mitigation of VIV are analyzed. The results show that large-scale vortices shed from handrails and gantry rails result in large heaving VIV responses. The torsional
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Control theory for fractional differential Sylvester matrix equations with Caputo fractional derivative J. Vib. Control (IF 2.8) Pub Date : 2024-04-15 Lakhlifa Sadek
In this manuscript, we introduce the concept of first-time controllability and observability concerning fractional differential Sylvester matrix equations employing the Caputo fractional derivative. Our work establishes necessary and sufficient conditions for controllability and observability, wherein controllability equates to having a controllability matrix with full rank and observability aligns
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Model reference sliding mode control for two-degree-of-freedom electro-hydraulic shaking table J. Vib. Control (IF 2.8) Pub Date : 2024-04-13 Zhepeng Wang, Guangfeng Guan
The multi-axis electro-hydraulic shaking table (EHST) is capable of simulating complex vibration environments to assess product reliability under vibrational excitation. The random vibration control method plays a crucial role in simulating these environments. However, the unmolded disturbances and the nonlinearity of the system have a significant impact on the control accuracy of the EHST. Sliding
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Multi-motor average deviation coupling control strategy based on hyperbolic convergence law high-order sliding mode control using extended state sliding mode observer J. Vib. Control (IF 2.8) Pub Date : 2024-04-12 Fengshuo Zhao, Yuguang Zhong, Shuyang Wang, Dening Song
This paper aims to develop a multi-motor synchronous drive control system for the direction of the width of the lifting arm of a catamaran. Firstly, we establish a mathematical model of permanent magnet synchronous motor and introduce the composition of AC servo control systems. We then analyze the sources of control interference in multi-motor drive systems. Based on the mean deviation coupling control
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Design and verification of diesel generator exhaust muffler J. Vib. Control (IF 2.8) Pub Date : 2024-04-12 WenQiang He, Xuan Gong, QiaoXin Zhang, JinGui Yu
The exhaust muffler is one of the most effective methods to control the exhaust noise of diesel generator. In this paper, a new type of impedance composite muffler is designed for the spectral characteristics of diesel engines and the shortcomings of existing mufflers. The main idea of the design is to reasonably design the key structures such as the length-diameter ratio, the insert-pipe, and the
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Driving simulator: Analysing the impact of mechanical latency on the perception of lateral dynamics J. Vib. Control (IF 2.8) Pub Date : 2024-04-12 Stefano Melzi, Giorgio Previati
Mechanical latency is the time elapsed between the driver’s input and the subsequent movement of a driving simulator. Large latencies may overlap with the time constants of a vehicle, thus altering its dynamics. As latency introduces inconsistencies between the driver’s input and the vehicle’s response, it may also result in motion sickness. The paper describes the design and the results of a test
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Study of the kurtoses transmission of linear structures under stationary non-Gaussian random loadings J. Vib. Control (IF 2.8) Pub Date : 2024-04-12 Song Cui, Lei Hong
Recent research has discovered that the kurtoses of non-Gaussian stress loadings can significantly impact the fatigue life of in-service structures. To predict potential damage, a fatigue life estimation method based on Gaussian damage and a kurtosis-related corrective coefficient has been developed. However, the transmission of kurtoses from excitations to responses has not been well studied, particularly
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Propelling precision of longitudinal vibration mitigation in ship propeller shafts through advanced nonlinear intelligent semi-active control leveraging adaptive neuro-fuzzy inference system with linear quadratic regulator J. Vib. Control (IF 2.8) Pub Date : 2024-04-12 Sunil Kumar Sharma, Rakesh Chandmal Sharma, Jaesun Lee
This study presents a pioneering method to address longitudinal vibrations in ship propeller shafts by integrating an intelligent semi-active control system. By leveraging Adaptive Neuro-Fuzzy Inference System (ANFIS) and Linear Quadratic Regulator (LQR) techniques, the proposed system offers a novel solution to a longstanding challenge in maritime engineering. The efficacy of the semi-active control
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Power flow analysis of the three-beam system on double parameter elastic foundations based on the wave propagation approach J. Vib. Control (IF 2.8) Pub Date : 2024-04-10 Liang Yan, Dongyan Shi, Xiaofan Zhuang, Kun Zhao
This article investigates the power flow of the three-beam system on Winkler–Pasternak elastic foundations under elastic boundary conditions. The time-averaged power flow of the beam on elastic foundations with elastic boundary conditions is calculated based on the internal shear force and bending moment and the wave propagation approach. The reliability and accuracy of the calculation method are verified
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Optimal solution of nonlinear 2D variable-order fractional optimal control problems using generalized Bessel polynomials J. Vib. Control (IF 2.8) Pub Date : 2024-04-10 Z Avazzadeh, H Hassani, A Bayati Eshkaftaki, MJ Ebadi, P Agarwal
This study aims to propose a new optimization method based on the generalized Bessel polynomials (GBPs) as a class of basis functions for a category of nonlinear two-dimensional variable-order fractional optimal control problems (N-2D-VOFOCPs) involved in fractional-order dynamical systems and Caputo derivatives. For the optimal solution of such problems, the optimization method is developed on the
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Research on decoupled transfer path analysis method and its application in hybrid mechanical systems J. Vib. Control (IF 2.8) Pub Date : 2024-04-09 Bao Zhang, Xiaoping Su
As a key technique of vibration control, transfer path analysis (TPA) provides theoretical support for diagnosis, analysis, evaluation, and optimization of vibration in mechanical systems. The coupling phenomena often exists in the vibration transfer paths of complex mechanical systems, which makes most of the existing TPA methods unable to accurately analyze the transfer function of the coupled paths
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An analytical approach for shock response of fractional viscoelastic beams with tip mass J. Vib. Control (IF 2.8) Pub Date : 2024-04-04 Behzad Heidarpour, Abbas Rahi, Morteza Shahravi
This paper specifically analyzes the behavior of a beam with fractional viscoelastic properties and a tip mass under shock. The shock is applied longitudinally to the beam, and a fractional Kelvin–Voigt model is employed to describe the viscoelastic properties. Additionally, the paper examines the fractional viscoelastic power as a function of time during the shock. The equation of motion for the fractional
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Designing the optimal path curve based on spline functions for mobile robot using the combination of bee colony algorithm and genetic algorithm J. Vib. Control (IF 2.8) Pub Date : 2024-04-04 Xing Min Lin, Luting Xia, Zhen Ge, XinHui Hong, Ruoyi Zhao, Mostafa Jalalnezhad
This research focuses on the routing algorithm for mobile robots, considering factors such as time, path length, and energy consumption. Various algorithms have been used to plan trajectory curves, including classical methods, probabilistic algorithms, and meta-heuristic algorithms. The artificial bee colony algorithm was used to generate practical path curves without collisions, which were then used
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Design of metadevices based on isotropic materials for eigenfrequency recovery in lightened structures J. Vib. Control (IF 2.8) Pub Date : 2024-04-03 Alejandro E Albanesi, Juan C Álvarez-Hostos, Víctor D Fachinotti, Nahuel J Volpe
This work presents a novel approach for the design of metadevices conceived to recover a prescribed set of the natural eigenfrequencies of a structure lightened by machining arbitrary shape holes, using classical topology optimization (TO) techniques. This TO metadevice design (TOMD) is performed by minimizing the error of an eigenfrequency recovery task, using the finite element method (FEM) as an
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Dynamics modeling of urban rail vehicle axle-box bearings with roller defect considering time-varying impact J. Vib. Control (IF 2.8) Pub Date : 2024-04-02 Yaoxiang Yu, Ruiqi Zhang, Liang Guo, Zaigang Chen, Hongli Gao, Guoli Zhang
Accurately simulating the vibration response of the axle-box bearing with a localized defect on the roller can guide the proposal of several health condition estimation methods. However, there is still a lack of discussion and analysis on the detailed motion process of the roller defect passing through the inner/outer race. For filling this gap, a roller defect model considering time-varying impact
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Improved nonlinear active disturbance rejection control based on hierarchical expected improvement for high-speed elevator horizontal vibration suppression J. Vib. Control (IF 2.8) Pub Date : 2024-04-01 Qinghua Ge, Lulu Zhang, Ruijun Zhang, Yulei Wang
In this paper, an improved NADR control method based on hierarchical expected improvement (HEI) optimization is studied to suppress the horizontal vibration of high-speed elevator car under complex coupled disturbances to improve high-speed elevator ride comfort. First, a nonlinear 8-DOF dynamic model for the horizontal vibration of the high-speed elevator car is constructed. Then, a 4-level parallel
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Parametric control of quasi-zero stiffness mechanisms for vibration isolation at near-zero frequencies J. Vib. Control (IF 2.8) Pub Date : 2024-04-01 Lee Chang-Myung, Karpov Evgeny, Goverdovskiy Vladimir, Larichkin Alexey, Brovkina Julia, Prokhorov Alexander
Infra-frequency vibration, including near-zero frequencies, has become a critical limiting factor for developers of next-generation ultra-high precision measurement systems. Mechanisms involving quasi-zero stiffness show potential to solve this new vibration problem. An approach for designing a novel type of the mechanisms for this class is presented. An algorithm is developed and tested for numerical
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Constraint-following adaptive robust control for multi-vehicle system formation with collision avoidance J. Vib. Control (IF 2.8) Pub Date : 2024-03-30 Gang Xiao, Jiawen Li, Qinwen Yang, Longjie Fan, Qin Liao, Jin Huang
For the formation on unstructured road with complex road conditions, the rationality of constraint design and uncertainty compensation seriously affect the connected and autonomous vehicle (CAV) system performance. The system constraints are studied for safe and efficient formation driving, and an adaptive robust formation control scheme is proposed. First, for the desired configuration and global
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Calibration of multiple shunted piezoelectric transducers with correction for residual modes and shunt interactions J. Vib. Control (IF 2.8) Pub Date : 2024-03-30 Jens D Richardt, Boris Lossouarn, Jan Høgsberg, Jean-François Deü
Piezoelectric shunt damping can be used for efficient vibration mitigation of a single or multiple vibration modes of a structure. Several analytical tuning expressions have been derived for numerous circuit topologies for a single shunt. However, when multiple shunted piezoelectric transducers are attached to a flexible structure, their individual interactions alongside the spill-over from residual
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Robust dynamic surface control of series elastic actuators based on reduced-order extended state observer J. Vib. Control (IF 2.8) Pub Date : 2024-03-28 Changwei Yin, Fuxin Du, Yang Zhang, Chao Chen, Rui Song, Yibin Li
The compliance of series elastic actuators (SEAs) is significant for ensuring safe human–machine interaction. However, in practical applications, the SEA is inevitably encountered with unknown disturbances, such as parameter uncertainties, unmodeled dynamics, and environmental interferences. In this paper, a robust dynamic surface control scheme is presented to address the high-precision trajectory
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Performance improvement study of nonlinear bionic suspension based on inerter and on–off control strategy J. Vib. Control (IF 2.8) Pub Date : 2024-03-27 Yong Song, Tuo Xu, Zhanlong Li, Xiqing Zhang, Bijuan Yan
How to improve the dynamic performance of nonlinear suspension systems is a focus of attention. The combination of inerter and on–off control strategy can effectively improve the dynamic performance of linear suspension systems, but it will also bring some adverse effects. This paper puts forward a nonlinear suspension system performance enhancement scheme based on semi-active on–off control strategies
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Design and real-time implementation of a robust backstepping non-singular integral terminal sliding mode attitude control for a quadrotor aircraft J. Vib. Control (IF 2.8) Pub Date : 2024-03-27 Hamid Hassani, Anass Mansouri, Ali Ahaitouf
This paper concerns the problem of robust attitude control of a quadrotor aircraft subjected to modeling inaccuracies and wind disturbances. First, the model dynamics and state space representation of the quadrotor system are designed by considering the impact of disturbances and uncertainties. Then, a novel robust backstepping non-singular integral terminal sliding mode control (BNITSMC) is synthesized
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Stability analysis and vibration suppression in an overhung rotor system using active magnetic damper J. Vib. Control (IF 2.8) Pub Date : 2024-03-26 Shashank Shekhar Singh, Punit Kumar
The present work demonstrates the effectiveness of an active magnetic damper (AMD) in improving the vibration characteristics of an overhung rotor system (ORS) considering the effects of synchronous mass-unbalance, rotor bow, and viscous internal damping. A finite element-based rotordynamic analysis has been conducted to evaluate the system response using state-space formulation. MATLAB codes are developed
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Thermoelastic free vibration of rotating pretwisted porous p-FGM, e-FGM, and s-FGM conical shells in nonlinear temperature distribution J. Vib. Control (IF 2.8) Pub Date : 2024-03-25 Subhendu Pal, Mrutyunjay Rout, Tripuresh Deb Singha, Amit Karmakar
The free vibration response of rotating pretwisted functionally graded (FG) conical shells in nonlinear thermal conditions is investigated using a finite element approach with the purpose of application in turbomachinery blades. With the aid of power, exponential, and sigmoid laws, the pretwisted conical shell is functionally graded in its transverse direction. The distribution of both even and uneven
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Synchronous control of tri-motor vibration system considering an adaptive back-stepping control strategy J. Vib. Control (IF 2.8) Pub Date : 2024-03-25 Mingjun Du, Faming Lei, Qinghong Yuan, Xianjin Wu, Honggang Xie, Jinbao Ma
In oil and gas drilling engineering, the anti-phase synchronization of two co-rotating rotors in a tri-motor vibration system is easy to implement owing to its inherent coupling characteristics, which can lead to the exciting force generated by the vibrating system being very small. Thus, an adaptive back-stepping control strategy is proposed to apply in a tri-motor vibrating system and improve the
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Stability analysis and energy harvesting in lumped parameter systems with internally coupled resonators J. Vib. Control (IF 2.8) Pub Date : 2024-03-23 Hossein Alimohammadi, Kristina Vassiljeva, S Hassan HosseinNia, Eduard Petlenkov
This article explores internally coupled resonators in metamaterial systems, focusing on mechanical and electromechanical coupling. The article provides a thorough examination of stability within the context of internally coupled resonators. It establishes stability criteria, emphasizing the importance of strictly stable systems in practical applications. Furthermore, it analyzes stability through
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Free vibrational behavior of a conical sandwich shell with a functionally graded auxetic honeycomb core J. Vib. Control (IF 2.8) Pub Date : 2024-03-22 Hossein Amirabadi, Ali Mottaghi, Mirsalman Sarafraz, Hassan Afshari
In the presented paper, the free vibration of a conical sandwich shell with a re-entrant auxetic honeycomb (AH) core made of ceramic-metal functionally graded material (FGM) is analyzed. The percentage (volume fraction) of ceramic in the functionally graded auxetic honeycomb (FGAH) core changes from zero at the inner surface of the core to one at the outer surface according to a power-law function
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Wavelet denoising based on comprehensive index optimization and improved L2 regularization for load identification J. Vib. Control (IF 2.8) Pub Date : 2024-03-18 Chenxi Li, Chengjun Wu, Chao Zhang
Load identification, as an inverse problem, is still one of the challenges in the field of vibration engineering. In this paper, a comprehensive load identification method combining entropy weight Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) noise reduction evaluation algorithm and improved L2 regularization method is proposed to improve the load identification accuracy from
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Research on modified lumped parameter method in torsional vibration analysis of reciprocating compressor shaft J. Vib. Control (IF 2.8) Pub Date : 2024-03-15 Junchao Ye, Xiaoling Yu, Xingyue Zhang, Qian Lv, Xiaolin Wang
Abnormal vibrations often occur during the operation of reciprocating compressors under different load conditions. To efficiently and accurately calculate the torsional vibration response of the shafting under various working conditions, a modified lumped parameter method (MLPM) based on finite element mode modification is proposed. MLPM is derived from the lumped parameter method (LPM) and incorporates
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Analytical optimization and performance evaluation of non-traditional tuned mass damper for stochastic base excited structures considering dual solutions J. Vib. Control (IF 2.8) Pub Date : 2024-03-15 Ruoyu Zhang, Meigen Cao
Compared with traditional tuned mass damper (TMD), non-traditional tuned mass damper (NTMD) has higher damping efficiency in some conditions. Nevertheless, the analytical optimization problem of NTMD has not been well solved; especially, multiple optimal solutions are not discussed. In this study, the closed-form optimal expressions of the NTMD using tuning stiffness are derived based on H 2 norm optimization
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Low-frequency forbidden band characteristics of metamaterials based on combined resonant units J. Vib. Control (IF 2.8) Pub Date : 2024-03-15 Ruyu Jia, Hui Li, Jinxin Dou, Hongliang Yao, Bangchun Wen
With a view to increasing the width of the local resonant band gaps and obtaining damping at low-frequency, a metamaterial structure with multiple resonant units and an adjustable band gap is proposed. The single-unit structure of the metamaterial consists of a main system and three resonant units. Simultaneously, the energy band structure and frequency response characteristics of the metamaterial
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An investigation into vibration transmission patterns within metro turnout areas utilizing the structural sound intensity method J. Vib. Control (IF 2.8) Pub Date : 2024-03-14 Liuchong Wang, Hongbo Su, Dong Zou, Minghui Tang, Hanxiao Zhou, Caiyou Zhao, Ping Wang
Urban rail transit turnout areas are notorious for inducing elevated environmental vibrations due to the complex interactions between wheels, rails, and supporting infrastructure. This paper establishes a comprehensive vehicle-track-tunnel-soil coupled dynamic model of a train traversing a turnout region. The intricate vibration transmission mechanisms within the turnout are explored through numerical
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Friction-induced vibration reliability and sensitivity analysis of a braking system J. Vib. Control (IF 2.8) Pub Date : 2024-03-13 Zhou Yang, Minghao Yuan, Guo Yao, Yimin Zhang
In this study, reliability and sensitivity analyses are performed for the behavior of friction-induced vibration based on automotive braking systems. In this paper, a friction-induced vibration model of the braking system is developed using Newton’s second law. The accuracy of the vibration model is verified through experiments. The displacement response of the braking system is theoretically derived
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A direct transcription method for solving distributed-order fractional optimal control problems J. Vib. Control (IF 2.8) Pub Date : 2024-03-13 Roya Vaziri Doghezlou, Hamid Reza Tabrizidooz, Mostafa Shamsi
This paper considers the numerical solution of distributed-order Fractional Optimal Control Problems (FOCPs). The common approaches for solving these problems involve approximating the problem with a multi-term FOCP and subsequently discretizing the resulting multi-term problem using either a direct or indirect method. However, this paper bypasses the need for approximation with a multi-term FOCP by
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Analysis of torsional vibration characteristics for wind turbine drivetrain under external excitation J. Vib. Control (IF 2.8) Pub Date : 2024-03-13 Jianxiang Yang, Jinliang Zhang, Pei Wang
This work studies the torsional vibration characteristics analysis of the wind turbine drivetrain with the variation of internal parameter and external excitation. The electromechanically coupled torsional vibration model for wind turbine drivetrain is first established by taking into account the torsional vibration angle of the PMSG. Then, frequency response analysis of main parametric resonance is
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Fast adaptive time-varying window length STFT for compound track short-wave defects identification J. Vib. Control (IF 2.8) Pub Date : 2024-03-09 Zhehao Huang, Jinzhao Liu
Track short-wave defect, as a common defect of railway tracks, can cause dynamic response on both vehicle and its components and thus severely affect the stability and safety of running vehicle. The vibration signal, collected by an accelerator mounted on the axle box of vehicle, is a kind of vehicle dynamic response signal. It consists of complex periodic and impact signal components, which poses
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New approach of milling state recognition based on attention mechanism weighted fusion K-nearest neighbor under framework of chaotic attractor using accelerated life signal J. Vib. Control (IF 2.8) Pub Date : 2024-03-09 Qing Li, Haixu Wang
The surface quality of the finished workpiece and the lifetime of the machining tool will be damaged and reduced due to the issue of untimely milling monitoring and identification. To alleviate this bottleneck, in this paper, a new milling state recognition approach named hybrid attention mechanism WFKNN model under the framework of chaotic attractor and deep convolutional neural network (CNN) is proposed
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Experimental assessment of blowing effect on vehicle performance and aero-acoustics in small-rotor/wing interaction J. Vib. Control (IF 2.8) Pub Date : 2024-03-07 Mingtai Chen, Yuhan Chen, Jie Hua, Nick Maier, Dylan Burdette
The tiltrotor design for urban air mobility (UAM) combines vertical take-off and landing (VTOL) capability with fixed-wing efficiency. However, it confronts challenges posed by downward force due to rotor wake effect. Previous research has employed active flow control, such as blowing air, primarily during forward flight using a single air outlet slot. However, the implications for rotor performance
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Multichannel multiscale increment entropy and its application in roller bearing fault diagnosis J. Vib. Control (IF 2.8) Pub Date : 2024-03-06 Zhuangzhuang Sun, Jinde Zheng, Haiyang Pan, Ke Feng
As a new index to measure the complexity of time series, increment entropy, which takes into account the fluctuation directions and amplitude of time series, has better performance than the traditional entropy analysis methods such as sample entropy and permutation entropy. However, the increment entropy value of time series at single scale cannot completely reflect the dynamic change of time series
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Study on blast-induced vibration of single-hole cylindrical charge J. Vib. Control (IF 2.8) Pub Date : 2024-03-06 Xianyang Qiu, Hongjie Qiu, Wenbo Shen, Xiuzhi Shi, Xiaoyuan Li, Wei Zhi
It is essential to study the blast-induced vibration of cylindrical charge so as to reduce ground vibration level and protect the surrounding environment. In this paper, the Heelan model is used to study the generation and propagation mechanisms of blasting vibration induced by single-hole cylindrical charge. It shows that the superposition of vibration waves induced by explosives in different positions
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Effect of thermal diffusivity on Rayleigh waves in human tissue J. Vib. Control (IF 2.8) Pub Date : 2024-03-05 Sanjay Debnath, Sanasam Sarat Singh
This work examines the nature of human tissue under the context of dual phase lag thermoelastic diffusion theory using the principle of propagation of Rayleigh wave along the stress free, thermally insulated/isothermal, and impermeable/isoconcentrated conditions. The governing equations for the tissue are formed by considering the third-order approximation of Taylor’s expansion for the modified Fourier’s
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Experimental and numerical investigation of scale model used in the development of a spent nuclear fuel transport cask J. Vib. Control (IF 2.8) Pub Date : 2024-03-05 Tianbao Lan, JiaoJiao Dong, Feng Sheng
To investigate the dynamic response and validate the structural integrity of a spent fuel transportation cask under the 9 m drop condition, a 1/3 scale model was utilized in a 9 m side drop test, considering the constraints of development cost and test facilities. The relationship between the response variables of the scaled model and the prototype model is obtained by Π theorem under impact drop conditions
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Research on damage identification of jacket structure under wind and wave loads based on variational mode decomposition and chirplet transform J. Vib. Control (IF 2.8) Pub Date : 2024-03-04 Ping-Ping Yuan, Zhou-Jie Zhao, Xue-Li Cheng, Wei-Xin Ren
To conduct damage localization and damage quantification of jacket structure, a new damage identification approach based on variational mode decomposition (VMD) and chirplet transform (CT) is firstly introduced. Three kinds of environmental loads, namely, regular wave load, irregular wave load, and wind load, are set on the jacket structure to simulate the real environment of the jacket as much as
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A parametric study on the effect of ring damper on wheel damping J. Vib. Control (IF 2.8) Pub Date : 2024-03-04 Shuoqiao Zhong, Kun Wu, Xiaozhen Sheng
Ring dampers have been widely applied to control vibration of, and noise from, train wheels due to the simple structure, negligible impact on operational safety and potential in vibration and noise reduction. Yet, parameters affecting the vibro-acoustic performance of a ring-damped wheel are not adequately studied. In this paper, the apparent modal damping ratios of a ring-damped wheel are studied
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Experimental verification of a translation model of linear transfer function of ultrasonic vibrations with nonlinear wave modulation for detection of contact-type failures J. Vib. Control (IF 2.8) Pub Date : 2024-03-04 Takashi Tanaka, Takato Tamura, Yasunori Oura
Contact-type failures, such as the crack closure at the tip of a fatigue crack, closed delamination of composite materials, and loosening of bolted joints, are difficult to detect through nondestructive inspections using linear ultrasonic waves or vibrations. When low-frequency vibrations, such as environmental disturbances, operating vibrations, and vibrations excited by actuators, are applied to
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Application of nonlinear system identification and feature extraction in fault diagnosis of the cracked cantilever beam J. Vib. Control (IF 2.8) Pub Date : 2024-03-02 Yang Liu, Haiying Liang, Kunpeng Feng, Chencheng Zhao
The cantilever beam structure is extensively applied in civil, transportation, and mechanical fields. It is generally prone to structural damage like cracks arising from material defects, operation conditions, and environmental factors. Cracks in a cantilever beam generally induce nonlinear behavior, potentially compromising structural durability and even posing threats to production safety. The present
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A survey on countermeasures of railway vehicle stability decrease caused by the evolution of hollow-worn wheels J. Vib. Control (IF 2.8) Pub Date : 2024-02-29 Zegen Wang, Dao Gong
With the problem that the lateral vibration acceleration of the frame of a certain type of Electric Multiple Units (EMU) gradually approaches the limit value as the running mileage increases, the tracking test was conducted on the whole vehicle’s wheel tread wear and the frame’s vibration response. It was found that as the tread hollow-worn increased, the vehicle stability would deteriorate. In order
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Performance evaluation of machine learning algorithms and impact of activation functions in artificial neural network classifier for bearing fault diagnosis J. Vib. Control (IF 2.8) Pub Date : 2024-02-29 Ganesh Rayjade, Amit Bhagure, Prashant B Kushare, Ramesh Bhandare, Vilas Matsagar, Ashitosh Chaudhary
Machine learning algorithms are used to identify the bearing condition. In this work, different machine learning techniques such as decision tree, logistic regression, support vector machine (SVM), and artificial neural network (ANN) are used and compared to find healthy and faulty conditions of the bearing. The identification of the condition of the bearing is based on vibrations recorded using Fast
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Nonlinear dynamics simulation of the helical gear transmission system for high-speed train J. Vib. Control (IF 2.8) Pub Date : 2024-02-27 Yeping Yuan, Junguo Wang, Meng Yang
Considering the bending-torsional-axial-coupled vibration of the helical gear transmission system, a 10 degrees of freedom high-speed train gear transmission system model, including motor and load, is established based on the lumped parameter method. In addition, the potential energy method based on the slicing principle is used to accurately calculate the time-varying meshing stiffness of helical
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Design of shock isolator under recoil shock J. Vib. Control (IF 2.8) Pub Date : 2024-02-27 Bin Yu, Xin Xie, Guangan Ren, Baoyu Li, Dapeng Fan
The shock isolator is used for the protection of important equipment during firing, but due to the complexity of the recoil shock, currently most of them rely on experience for design, other than a more scientific design method. In view of this, this paper analyzes the recoil shock signal, proposes an analytical method to calculate the shock response, and develops a design method of shock isolator
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Dynamic analysis of the inclined cable under wind-induced vibration through harmonic discretization J. Vib. Control (IF 2.8) Pub Date : 2024-02-27 Yunyue Cong, Houjun Kang, Tieding Guo, Xiaoyang Su
This paper intends to reveal the dynamic mechanism of the inclined cable under wind-induced vibration based on a multi-mode reduced model. The discrete harmonic superposition method is applied to simulate the broadband wind-induced loads. Galerkin’s method and the method of multiple scales are utilized to derive the modulation equations. The asymmetrical profile of inclined cable due to the inclination
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Tunable acoustic metamaterial for broadband low-frequency sound absorption by continuous acoustic impedance manipulation J. Vib. Control (IF 2.8) Pub Date : 2024-02-26 Xiaochen Wang, Chenlei Yu, Fengxian Xin
In this paper, a continuously tunable acoustic metamaterial is proposed for broadband low-frequency sound absorption. The metamaterial can be considered as a reconfigurable Helmholtz resonator with an upper perforated panel that can be continuously rotated to adjust the neck length. A theoretical model is developed to study the tunable sound absorption performance of the metamaterial, which demonstrates
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Nonlinear vibration control of magnetic bearing system considering positive and negative stiffness J. Vib. Control (IF 2.8) Pub Date : 2024-02-26 Can Wang, Canchang Liu, Shuaikang Cao, Liang Sun
The nonlinear dynamics are studied for an active magnetic bearing (AMB) system under the low-frequency sinusoidal excitation, which can affect the operational stability of a high-speed magnetic bearing. A single-degree-of-freedom nonlinear dynamics model of magnetic bearing was developed with a c-type active magnetic bearing as the research target. The characteristics of the magnetic bearing system
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Linear matrix inequality-based vibration control of three-dimensional Euler–Bernoulli beam with external disturbance J. Vib. Control (IF 2.8) Pub Date : 2024-02-23 Jiewen Ji, Jinkun Liu, Lin Sun
In this paper, we address the LMI-based vibration control problem of a three-dimensional Euler–Bernoulli beam subject to external disturbance. First, the dynamics of the system is characterized by several partial differential equations (PDEs). Second, in order to realize the disturbance rejection, we propose the disturbance observers. Based on these, the boundary control protocols are designed via