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Modeling and Analysis of 1:3 Internal Resonance of Suspension Bridge Under Boundary Excitations Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Peng Cheng, Houjun Kang
This study investigated the nonlinear dynamic behavior of suspension bridge subjected to multi-frequency boundary excitations. Firstly, the nonlinear dynamic model of the suspension bridge subjected to multi-frequency boundary excitations is established. The in-plane vibration equations are derived based on Hamilton’s principle, taking into account the effects of geometric nonlinearity of the girder-deck
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Damage Identification of Simple Supported Bridges Under Moving Loads Based on Variational Mode Decomposition and Deep Learning Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Chao Wang, Xiang Pan, Tian-Yu Qi, Gui-Ning Han, Wei-Xin Ren
Aiming at rapid and economical damage detection of a large number of simple supported bridges, a new structural damage identification method under moving load based on variational mode decomposition (VMD) and deep learning is proposed. Firstly, a moving vehicle is used as an exciting load to invoke structural damage feature and enhance the signal-to-noise ratio, and the structural vertical acceleration
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Vibrational Analysis of Axially Loaded Rayleigh Beams on Variable Winkler Foundations with Implications for Structural Design Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Abdulmohsen Alruwaili, Javeria Zafar, Rab Nawaz, Hani Alahmadi
In this study, we explore the complex vibration problem of a Rayleigh beam under axial loads, positioned over a variable Winkler foundation with elastic properties changing along its length. The investigation delves into how factors like rotational inertia, axial forces, and foundation properties affect the beam’s dimensionless eigenvalues and eigenmodes. Employing the Differential Transform Method
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Investigation on the Dynamic Performance of High-Speed Trains Under Tunnel and Crosswind Environments Considering Car-Body Flexibility Based on a CFD-MBD Co-Simulation Method Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Yanlin Hu, Chao Chang, Qinghua Chen, Xin Ge, Liang Ling, Kaiyun Wang
The dynamic performance of railway vehicles is significantly impacted by sudden-changed aerodynamic loads. To investigate the dynamic performance of high-speed trains (HSTs) under tunnel and crosswind environments considering the car-body flexibility, an intensive study is conducted. First, a train–track interaction dynamic model with a flexible car body is established in SIMPACK for dynamic response
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Targeted Energy Transfer Evaluation for Nonlinear Vibrations of Elastic Medium-Finite Length Beam System Using Nonlinear Energy Sink Theory Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Jianjun Ma, Zongtong Liu, Chaosheng Wang, Songyang Wang, Da Li
The elastic medium can usually reduce the vibration of supporting structure, and the impact of the interaction on the vibration characteristics of the structure is similar to the characteristic of nonlinear energy sink. At present, the dynamic research of beam on elastic foundation considering soil motion has been paid more and more attention. According to the modified Winkler model, the finite-depth
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Fragility Analysis of a Transmission Tower-Line System Subjected to Wind and Ice Loads Considering Fatigue Damage Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Jia-Xiang Li, Yu-Shun Zuo, Ling-Peng Wang, Zhi-Qian Dong
Disasters such as ice and wind can pose a serious threat to the normal operation of power transmission lines. Wind-induced fatigue damage can further reduce the load-carrying capacity of transmission towers, increasing their fragility to ice and wind disasters. To assess the comprehensive capability of transmission towers to resist extreme ice and wind disasters, this paper proposes a failure probability
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Constructing Pavement Roughness of a Three-Dimensional Bridge in Abaqus for Vehicle Scanning Method Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-13 Judy P. Yang, Han-Cyuan Jiang
In this study, a procedure for constructing pavement roughness in a three-dimensional bridge subjected to a vehicle using Abaqus is proposed for numerical simulation of vehicle–bridge interaction problems. As the plug-in RufGen, a graphical user interface in Abaqus/CAE for surface interaction, creates a hexahedron with a rough surface and attaches it to the bridge deck, the resulting weight of a bridge
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Selection of the Span Length of an Analogic Finite Beam to Simulate the Infinite Beam Resting on Viscoelastic Foundation Under a Harmonic Moving Load Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-08 Y. B. Yang, S. Y. Gao, K. Shi, X. Q. Mo, P. Yuan, H. Y. Wang
Continuous rails are often modeled as infinite beams. In this paper, closed-form solution is newly derived by the residue theorem and Green’s function for the dynamic response of an infinite beam resting on viscoelastic foundation under a harmonic moving load. The most suitable span length will be determined for the analogic finite beam (which can be more conveniently used in practice) to best represent
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The Influence of CRTS II Slab Ballastless Track Upper Arch Deformation on the Wheel Jumping Law of High-Speed Vehicle Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-08 Kai Gong, Cheng Wang, Jun Xiang, Wenjie Guo, Jiangling Luo, Wenjun Bian
To study the impact of upwarp deformation in the ballastless track on the jumping behavior of the high-speed vehicle, utilizing UM and ANSYS joint simulation, a vertical vibration model of high-speed vehicle on CRTS II slab ballastless track was developed based on the non-Hertz wheel–rail contact model of virtual penetration theory. By using the single-wave cosine curve simulating the characteristics
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Vibration, Buckling and Stability Analyses of Spinning Bi-Directional Functionally Graded Conical Shells Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-08 Xiaochao Chen, Qing Gao, Songbing Huang, Kangni Chen, Yiwan Wu
This paper investigates the free vibration, buckling and dynamic stability of spinning bi-directional functional gradient materials (BDFGMs) conical shells. The material properties vary along the thickness and axial direction. The dynamics model is established based on the first-order shear deformation theory and the governing equations and boundary conditions of the conical shell are derived employing
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Free Vibration of Axially Loaded Functionally Graded Porous Cracked Beams Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-08 Yousef S. Al Rjoub, Mohammad A. Al-Momani
This study employed a method of analysis to examine the free oscillation behavior of functionally graded (FG) porous-cracked beams under axial loads and varied boundary conditions. The cracked beam system was composed of interconnecting beam segments kept together by massless rotating springs. Based on the Timoshenko beam theory (TBT) or Euler–Bernoulli theories (EBT), each segment was sectionally
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Dynamic Analysis and Optimization on Passive/Active Vibration Reduction of a Beam Structure with Distributed Smart Foams Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-08 Wen-Yong Zhang, Mu-Qing Niu, Lan-Feng Deng, Yimin Fan, Li-Qun Chen
A smart foam is a vibration absorption structure integrated with piezoelectric material and shows promise for a highly efficient structural vibration reduction both passively and actively. The arrangement of the smart foams on the primary structure is a key issue in practical engineering. In this work, the vibration reduction performances of distributed smart foams attached to a simply supported beam
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A New Approach to Structural Damage Identification Based on Power Spectral Density and Convolutional Neural Network Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-08 Youliang Fang, Chanpeng Li, Sixiang Wu, Menghao Yan
In the field of structural health monitoring, vibration-based damage identification remains a formidable challenge. Key to this challenge is the establishment of a reliable association between observed vibration characteristics and the actual state of structural damage (e.g. stiffness reduction). This association not only accurately indicates the presence of damage, but also the location and severity
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Stochastic Vibration-Driven Fatigue Analysis for Steel Structure Bridges Considering Track Irregularity Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-05 Yahao Li, Nan Zhang, Qikan Sun, Chaoxun Cai, Kebing Li
This study proposes a method for assessing the effect of stochastic vibrations resulting from track irregularities which are rarely studied but significant on bridge fatigue. First, the pseudo-excitation method is utilized to determine the power spectrum density of stress. Subsequently, the trigonometric series method is employed to acquire the stress time history set. Then, a traditional fatigue life
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Symmetric/Asymmetric Vibrational Characteristics of Bi-Directional Functionally Graded Annular Microplates Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-05 Longbo Liu, Fangqing Gao, Bo Zhang, Juan Liu, Yukang Yang, Hexuan Deng
In this study, a free vibration model of bi-directional functionally graded (BD-FG) annular microplates is established based on the modified couple stress theory (MCST) and the first-order shear deformation theory (FSDT), and the corresponding governing equations are derived from Hamilton’s principle. The annular microplates are assumed to be composed of metal and ceramic materials, and the equivalent
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A Multiple Scale Approach to Nonlinear Vibrations and Stability of Doubly Curved Shells/Panels Under External and Parametric Excitations Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-04 Mohammad Amin Montaseri, Mohammad Rahmanian, Seyyed Ali Asghar Hosseini
This study focuses on nonlinear vibrations and stability of doubly curved shells/panels. The thin-walled shell structure is assumed to be acted upon by external loads as well as parametric excitation. Using the first-order shear deformation Fülgge theory assumptions, governing equations of motion are derived for a general doubly curved geometry. Nonlinear components which are compatible with the Von-Karman
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Vehicle Response-Based Bridge Modal Identification Using Different Time–Frequency Analysis Methods Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-04 Xuan Kong, Quanyu Tang, Kui Luo, Jiexuan Hu, Jinzhao Li, C. S. Cai
Modal identification of bridges based on the responses of moving vehicles, termed as the indirect method, has drawn much attention in recent years. This indirect method has been proven to be capable of identifying bridge frequencies and mode shapes in the feasibility research. However, in the presence of additional factors such as vehicle speed and road surface roughness, it is difficult to identify
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A Novel High-Order Sandwich Plate Theory-Based Isogeometric Analysis for Free Vibration of Variable Angle Tow Composite Sandwich Plates with Complex-Shaped Cutouts Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-04-01 Xiaodong Chen, Fengjian Zhang, Guojun Nie
Advanced automated fiber placement technologies enable variable angle tow sandwich structures possible, which provides an extended flexibility in stiffness tailoring to design lightweight sandwich structures with superior performance. However, complex-shaped openings within this new type of sandwich structures bring great challenges when dealing with vibration problems. In this paper, an isogeometric
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Dynamic Modeling and Optimization Analysis of Rigid–Flexible Coupling Manipulator Based on Assumed Mode Method Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-28 Weiwei Sun, Kun Dai, Yue Liu, Fei Ma, Zhongyuan Guo, Zhouxiang Jiang, Shuangfu Suo
Lightweight robotic arms are one of the main technologies to improve the working performance of robotic arms in the future. Focusing on the spatial vibrations issue brought about by the light-weighting of a space robotic arm in this paper, a rigid–flexible coupling dynamics model of a space robotic arm system was established based on the assumed mode method and Lagrange method. Based on the lightweight
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The Stability of Corroded Circular Steel Tubes Under Axial Compression Investigated Through Testing, Finite Element Analysis and Theoretical Approaches Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-28 Lisheng Luo, Pan Su, Yongqiang Zhang, Chunlei Xu
Circular steel-tube members are extensively used in various large-scale steel structures. The detrimental effects of corrosion on the ultimate bearing capacities of these structures require urgent attention. This study designed six circular steel tube specimens to explore the degradation pattern of the ultimate bearing capacity of corroded circular steel tubes under axial compression; three were subjected
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Study on the Stress Histories and Fatigue Stress Spectrums of Longitudinal Connected Slab Track on Bridge During Service Life Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-28 Qingyuan Xu, Xi Wang, Bin Li, Ze Zhang, Zilong Zhang, Lexuan Wang
The paper aims to study the stress histories and the fatigue stress spectrums (FSS) of longitudinal connected slab track (LCST) on the bridge during service life, and to provide an important basis for the fatigue test design of slab track (ST) in the laboratory and in situ, fatigue life prediction and fatigue designing of ST for the actual engineering. First, the temperature field model for LCST on
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Dynamic Modeling and Theoretical Analysis of Planar Nonlinear Vibrations of an Articulated Hoop Truss Antenna Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-28 Bo Fang, Yilong Wang, Yi Wu, Jae-Hung Han, Dengqing Cao
The dynamic behaviors of large-scale hoop truss antennas (HTAs) are significantly influenced by the nonlinear torque transmission properties of flexible hinges. Due to the nonlinearity of the hinge, the HTA can be easily excited to exhibit internal resonances that result in the energy exchange between the adjacent two or three modes. This paper focuses on the 3:1 internal resonant responses of an articulated
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Fatigue Damage Analysis of Steel Truss Suspension Bridge Under Non-Stationary and Non-Gaussian Buffeting Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-28 Jun Hu, Xinqi Zhang, Shaohua Tan, Yongyong Liang, Junhan Wang
The wind field environment in mountainous zones is complex. If the wind field characteristics are regarded as stationary and Gaussian, the inaccurate response results of the structure will be obtained. In this paper, a fatigue evaluation method of steel truss suspension bridge members under non-stationary and non-Gaussian buffeting is proposed. This approach can solve the fatigue evaluation problem
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Effect of Bearing Friction on Seismic Performance of Bridges with Massive Piers Isolated by Friction Pendulum Bearings Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-28 Xinyan Jiang, Jianzhong Li, Nailiang Xiang
Although seismic isolation is a well-accepted design strategy for bridges to provide structural earthquake resistance, for bridges with massive piers, it may unexpectedly pose an abnormal influence on the seismic response of bridges due to the effect of substructure mass. This study investigates the effects of bearing friction and pier mass on the seismic performance of bridges isolated by friction
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Numerical Studies on Low Velocity Oblique Impact Analysis of Silicon Aluminum Composite Foam Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 T. Thimmesh, G. Narayana Naik, Dinesh Kumar Harursampath
In the impact application, the impactor doesn’t have to be perpendicular to the structure. This study mainly focuses on numerical low velocity oblique impact analysis performed on silicon aluminum composite foam using ABAQUS®. In this paper, the shear failure model is used to estimate damages in silicon aluminum composite foam model for different angles of the impactor. Here, dissipation energies,
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Running Safety Assessment of a High-Speed Train on Bridges During Braking Under Near-Fault Ground Motions Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Hongkai Ma, Xiaonan Xie, Han Zhao, Binbin Yin, Ping Xiang
This study aims to investigate the adverse effects of near-fault ground motions on the long-term development of high-speed railways. In this paper, the ground motions are analyzed based on the Train–Track–Bridge Coupling Braking System (TTBCBS) which has been validated during earthquakes. The effects of earthquakes on the whole system are discussed in depth, focusing on the random nature of earthquakes
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Vibration Mitigation via Tuned Mass Damper for Adjacent Stay Cables Interconnected with Rigid Cross-Tie Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Xidong Wang, Wei Gou, Wudi Gao, Shengli Li
The characteristics of low damping and closely spaced natural frequencies make stay cables susceptible to wind-induced vibrations. This work proposed a novel damping device consisting of tuned mass damper (TMD) and rigid cross-tie (RCT) to mitigate the vibration of stay cables effectively. Two adjacent stay cables interconnected with RCTs can provide installation locations for TMDs, thus making the
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Study of Support Motion of a Finite Bar with a Boundary Damper and a Spring Using Analytical Approaches and FEM Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Jeng-Tzong Chen, Hao-Chen Kao, Jia-Wei Lee, Ying-Te Lee
In this paper, we solve the vibration problem of a finite bar with a viscously damped boundary in conjunction with a spring on the same side subject to the support motion on the other side. To avoid the computation of complex modes and the difficulty of orthogonal conditions for the partial differential equation (PDE) of a continuous system, two alternatives are employed. One is the analytical derivation
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Progressive Collapse Analysis of Single-Layer Latticed Domes Under Seismic Loading Using Enhanced Fiber-Based Approach Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Yuxiang Cai, Yanfeng Zheng, Jingzhe Tang, Yaozhi Luo, Chao Yang
This paper presents a novel computational framework based on the Finite Particle Method (FPM) for the progressive collapse analysis of single-layer latticed domes subjected to seismic loading. The framework integrates a fiber-based approach to simulate the nonlinear behavior of steel structural members, including yielding, cyclic buckling, and fracture. For structural seismic analysis, the fiber-based
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Enhancing Cable Vibration Measurement at Long Distances Through Super-Resolution Reconstruction and Target Foreground Segmentation Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Depeng Cui, Weidong Wang, Jun Peng, Yukun Zhang, Yida Zhao, Bin Chen, Yan Liu, Jin Wang
This paper presents a comprehensive non-contact computer vision-based system for monitoring cable vibrations in cable-supported bridges, addressing challenges related to low image resolution and feature extraction difficulties at long distances. The proposed system utilizes deep learning techniques to enhance cable vibration recognition accuracy and offers a practical solution for cable monitoring
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Numerical Study on Seismic Performance of Rocking Self-Centering (RSC) Bridge Piers Under Bidirectional Excitation Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Li Jiang, Chao-Yang Ge, Peng-Cheng Zhou, Zhi-Guo Sun, Jia-Jun Liu, Yan-Hui Liu, Dong-Sheng Wang, Xiao Ge
To study the seismic performance of rocking self-centering (RSC) bridge piers, a numerical model of RSC pier is established based on the OpenSees platform. The model is verified by experimental results. The seismic performance of RSC piers is analyzed under quasi-static and seismic loads, respectively, in terms of peak lateral drift, residual deformation, compressive zone height of the cross-section
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Experimental Investigations on the Residual Performance of Earthquake-Damaged Low-Rise-Reinforced Concrete Shear Walls Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-27 Wen-I Liao, Yu-Ming Zheng
This study investigates the seismic residual performance of reinforced concrete (RC) shear walls with different levels of earthquake damage through reversed cyclic loading tests. The test specimens include slightly damaged walls, moderately damaged walls, and repaired specimens after moderately damaged walls. From the test and analysis results, it is evident that the residual strength and deformation
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Testing, Modelling, and Performance Evaluation of a Rotary Eddy-Current Damper with Inherent Nonlinear Damping Characteristics for Structural Vibration Control Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-25 Zhipeng Cheng, Zhihao Wang, Kaiming Bi, Kaiqiang Cui, Hui Gao
This paper investigates the inherent nonlinear damping characteristics of a rotary eddy-current damper (RECD) and evaluates its vibration control performance on a single-degree-of-freedom (SDOF) system subjected to harmonic and seismic excitations. First, a RECD prototype was manufactured to experimentally identify its intrinsic nonlinear eddy-current damping characteristics. A magic formula model
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Influence of the Seabed Site and Island Structure on Seismic Response of Marine Artificial Islands Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-25 Baokui Chen, Kailin Bu, Bowei Wang, Yan Shi
Compared with the marine structures such as sea-crossing bridges and offshore wind turbines, the marine artificial islands are bottom sitting structures and particularly sensitive to site conditions. Therefore, the study focuses on determining the effect of seabed site conditions and construction methods on the seismic performance of marine artificial islands. A seismic wave analysis model of seabed-seawater
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Experiment, Simulation, and Theoretical Investigation of a New Type of Interlayer Connections Enhanced Viscoelastic Damper Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-25 Yeshou Xu, Zhao-Dong Xu, Hao Hu, Ying-Qing Guo, Xing-Huai Huang, Zhong-Wen Zhang, Tian Zhang, Chao Xu
A conventional plate-type viscoelastic damper (VED) can easily crack at the interfaces of steel plates and viscoelastic components. In the present work, grooved VEDs, which are a new type of interfacial enhanced VEDs with interfacial grooves, are designed to improve the damping capacity and anti-cracking ability of conventional dampers. The dynamic property experiments of the normal and grooved VEDs
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Effects of Concentrated Mass on the In-Plane Dynamic Behaviors of Two-Cable Networks with a Cross-Tie Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-25 Fangdian Di, Chenyu Zhang, Jun Yin, Limin Sun, Lin Chen
This study proposes a two-cable network model, which includes a cross-tie and two concentrated masses installed at the connection points of cross-tie and cable. The characteristic equation of such a cable network system is formulated via the complex modal analysis method. Then, dynamics of a twin-cable network is discussed in details, and the effect of concentrated mass on the system modal frequencies
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Transient Aerodynamic Heating Effects on Aeroelastic Dynamic Response of Curved Fiber-Reinforced Composite Panel in Supersonic Airflow Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-25 Yating Liu, Jingbo Duan, Buqing Xu, Jiaqi Wu
The nonlinear aero-thermo-elastic behaviors of the curved-fiber composite panel are studied accounting for transient aerodynamic heating effects with two-way coupling method. The Von Karman assumption is utilized to depict the large deflection of the composite panel and the supersonic aerodynamic load is incorporated through first-order piston theory, respectively. The aerothermal and aeroelastic models
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Vibration Mitigation Using 3D-PSTMD for the Offshore Wind Turbine Considering Self-Excitation Behaviors Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-22 Gang Liu, Zhenbo Lei, Yujia Liang, Wei Tang
The self-excitation behaviors can be triggered by the blade rotation of the wind turbine. To mitigate the excessive vibration of offshore wind turbine (OWT) tower under this self-excitation addition with wind–wave loadings, a three-dimensional prestressed TMD (3D-PSTMD) is extended in this study. First, based on the Lagrange equation, the analytical formulations of 1P (rotor rotational speed) and 3P
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Vibration Suppression of Piecewise-Linear Stiffness Nes System Under Random Excitation Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-22 Jun Wang, Zi Jian Kan, Yun Hao Zhang, Jian Chao Zhang
Nonlinear energy sinks (NESs) are critically important for structural vibration suppression. They can absorb vibrational energy across a broad frequency spectrum, possess strong robustness, and have a relatively small mass. This study addresses the vibration suppression in a piecewise linear stiffness NES system under random excitation. Initially, a theoretical model of the piecewise linear stiffness
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Out-of-Plane Instability and Vibrations of a Flexible Circular Arch Under a Moving Load Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-22 Xingwei Zhao, G. H. M. van der Heijden
Flexible lightweight arched structures are finding increasing use as components in smart engineering applications. Such structures are prone to various types of instability under moving transverse loads. Here, we study deformation and vibration of a hinged circular arch under a uniformly moving point load using geometrically-exact rod theory to allow for large pre- and post-buckling deformations. We
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Experimental Study on Impulse-Induced Liquid Sloshing Modes and Frequencies in Rectangular Tanks Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-21 Wei-Hung Hsu, Juin-Fu Chai, Fan-Ru Lin, Yi-Jun Kao
Storage tanks are extensively used containers in various industries for storing diverse liquids. The sloshing of liquid in these containers, often caused by earthquakes, is an emerging issue in the context of damage sustained by tanks. Thus, the seismic resilience of a tank is a critical performance criterion in tank design. Given the complexity of liquid sloshing, the fundamental characteristics of
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Nonlinear Optimized PID Vibration Control of Thermal-Dependent FG Composite Porous Plates Reinforced by Agglomerated CNTs Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-20 Juan Li, Juanyin Liu
This research study aims to delve into the effects of carbon nanotubes (CNTs) agglomeration on the dynamic characteristics of smart functionally graded (FG) porous sandwich plates. The structure of the sandwich plate comprises a core layer that incorporates dispersed CNTs within a polymer matrix. In addition, two layers are equipped with piezoelectric sensors and actuators. The agglomeration of CNTs
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Frequency Design of a Vertical Cantilever Beam Carrying Tip Mass Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-16 Shengli Chen, Zhiqiang Wu, Yijia Zhang, Hanlu He
Previous research has revealed that vertical cantilever beam structures, after considering the effects of gravity, can exhibit a 1:3 internal resonance between two transverse modes. However, whether a similar phenomenon would still occur in the system when a proof body is attached to the free end of cantilever beams, and how to perform parameter design to deliberately induce internal resonance are
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Metro Monolithic Track Bed Vibration Characterization Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-16 Kaiyun Lei, Linchang Miao, Haizhong Zheng, Peng Xiao, Qian Wang
With the rapid development of cities, metro transportation has also developed rapidly to solve the congestion problems caused by urban development. However, with the continuous development of metro transportation, the vibration problems caused by it have become increasingly obvious. Based on the phonon crystal theory, this paper investigates the vibration characteristics of the metro track structure
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Bridge Damage Identification Based on LSTM Network and Contact Point Response Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-16 Xinfeng Yin, Yuecheng Yang, Zhou Huang, Wanli Yan
In this study, a bridge damage identification method based on the Long Short-Term Memory (LSTM) network and the contact point response is proposed, which utilizes the time behavior of the contact point response. The contact point response serving as the input to the LSTM network is obtained by calculating the vehicle-bridge interaction motion equation. A new bridge damage indicator titled the Euclidean
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Energy Absorption Characteristic of Biomimetic Gradient Hierarchical Multicellular Tubes Under Axial Impact Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-16 Jun Qian, Xiaolin Deng, Cuiping Huang, Zhenzhen Cai
This paper introduces a biomimetic gradient hierarchical multicellular structure consisting of two tree-like fractal variants: one based on vertex connections (HCV) and the other based on wall connections (HCW). We investigate their mechanical behavior and deformation through numerical simulations. Our findings reveal that, irrespective of whether they have the same wall thickness or mass, second-order
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Nonlinear Geometrical Effect on Deflection Characteristics of Fiber/Metal Laminates Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-16 Bhabatosh Panda, Vikash Kumar, Ashish Kumar Meher, Subrata Kumar Panda
The deflection behavior of the fiber-metal laminated structures is envisaged in this research using higher-order deformation kinematics and large (finite) deformations of geometries via Green–Lagrange strain. The panel governing equation is derived using variational principle and solved numerically considering the nonlinear finite element (FE) steps. The necessary responses are obtained using in-house
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Vibration Behavior of Composite Cold-Formed Steel Floors with Concrete Topping due to Heel-Drop Loading Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-14 Yu Shi, Yao Wei, Jiang Li, Honglong Li, Y. Frank Chen, Yunfei Zhao
Human-induced vibration is an important serviceability issue of modern structural designs, especially for light long-span structures. The common heel-drop impact is usually considered in evaluating the vibration of cold-formed steel (CFS) floors. This paper proposes a simplified equation for determining the peak accelerations under transient impacts, based on the Duhamel integral. The analytical results
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In-Plane Vibrations of Deep Sandwich Arches with Different End Conditions Based on a Logarithmic Shear Deformation Theory Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-14 Yingying Zhang, Jishen Peng
This paper deals with the vibrational frequencies of deep sandwich arches to enhance their application domain and possibly use them for energy harvesting. The circular arch with porous nanocomposite core and titanium alloy face sheets having different end conditions is numerically analyzed. The middle core of the sandwich arch is made of a six-layered porous aluminum reinforced with graphene nanoplatelets
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Dynamic Analysis of a Double-Cable-Stayed Shallow Arch Model Under Multi-Frequency Excitation by IHB Method Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-14 Yunyue Cong, Shiyu Jin, Houjun Kang
To reveal the dynamic properties of cable-stayed bridges under complex external excitations, a double-cable-stayed shallow arch model induced by multi-frequency harmonic excitations is established. The cable and shallow arch exhibit primary or subharmonic resonances by sweeping excitations simultaneously and asynchronously. Galerkin method, one/two time scales Incremental Harmonic Balance (IHB) method
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Experimental Study on the Mechanical Properties of Nylon Fabric-Reinforced Elastomeric Isolators (N-FREIs) Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-13 Yifeng Wu, Kai Fan, Aiqun Li, Ben Sha, Mingfei Si, Song Lu, Hao Wang
In recent decades, carbon fiber, glass fiber, polyester and Kevlar fiber have been utilized to replace the steel shims in conventional steel-reinforced elastomeric isolators (SREIs). This study chose nylon fabrics owing to their extreme low cost, low elastic modulus and good adhesion to rubber, and nine nylon fabric-reinforced elastomeric isolators (N-FREIs) were manufactured with different design
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Linear and Nonlinear Dynamics Responses of an Axially Moving Laminated Composite Plate-Reinforced with Graphene Nanoplatelets Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-13 S. F. Lu, N. Xue, W. S. Ma, X. J. Song, X. Jiang
The subharmonic resonances of an axially moving graphene-reinforced laminated composite plate are studied based on the Galerkin and multiscale methods. Graphene nanoplatelets (GPLs) are added into matrix material which acts as the basic layer of the plate, and a graphene-reinforced nanocomposite plate is thus obtained. Different GPL distribution patterns in the laminated plate are considered. The Halpin–Tsai
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Multimodal Resonance Response of Incompressible Hyperelastic Moderately Thick Cylindrical Shells Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-11 Zhentao Zhao, Jiayan Lin, Jie Xu, Xuegang Yuan
Based on the modified third-order shear deformation theory, the harmonic balance method, and the pseudo-arclength continuation method with two-point prediction, the nonlinear forced vibration response of incompressible hyperelastic moderately thick cylindrical shells subjected to a concentrated harmonic load at mid-span and simply supported boundary conditions at both ends is investigated. The algorithmic
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1/2 and 1/3 Subharmonic Resonance Behaviors of a Rotating FG-CNTRC Beam with Geometric Imperfections Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-09 Bai-Chuan Lin, Zhen-Ming Su, Kai Qian, Hao Dong, Peng-Fei Liu
This paper aims at investigating 1/2 and 1/3 subharmonic resonances of a rotating functionally graded carbon nanotube-reinforced composite (FG-CNTRC) beam in the presence of geometric imperfections. A general function is introduced to denote three types of imperfections containing sine, global, and local modes. At first, based on the von-Kármán geometric nonlinearity assumption, the forced vibration
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Train–Bridge Coupled Vibration of a Long-Span Steel Truss Suspension Bridge Under Complex Driving Conditions Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-07 Chuyi Xu, Hao Luo, Xianbei Gan, Mougang Liu, Hui Guo
To investigate the vibration characteristics of long-span suspension bridges under the impact of high-speed trains, a method for conducting a time–frequency domain analysis of the dynamic response of a coupled system is presented in this study. First, the finite element model of a suspension bridge is established to conduct modal analysis, and simulation results are compared with measured data to validate
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Semi-Analytical Formula for Estimating Variance Response of Megawatt Wind Turbine Tower Under Parked Condition Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-07 Guoqing Huang, Tao Long, Min Liu, Ding Yuan, Liuliu Peng, Xing Tan
As the supporting structure of the wind turbine, the tower is important for the safety of the wind turbine. The accurate estimation of tower response is critical for the wind turbine tower design. In the preliminary design, lots of calculations are necessary to determine design parameters. The traditional time domain calculation suffers its low efficiency and hinders the design progress. To overcome
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A Novel Analytical Method for Coupled In-Plane and Out-of-Plane Vibrations of Sandwich Plates with Arbitrary Boundary Conditions Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-07 Wanbo Li, Weifeng Liu, Ruihua Liang, Donghai Li
Sandwich plates are popular in the research field of vibration damping and are widely used in numerous engineering domains. Sandwich plates have been studied extensively for their excellent performances by a large number of researchers. Due to the interaction between the out-of-plane and in-plane vibrations of the layers of sandwich plates, it is difficult to solve the displacements of each layer in
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Assessment of Axisymmetric Dynamic Snap-Through and Thermally Induced Vibrations in FGM Cylindrical Shells Under Instantaneous Heating Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-07 A. Keibolahi, M. R. Eslami, Y. Kiani
This paper addresses the investigation of axisymmetric thermally induced vibrations in Functionally Graded Material (FGM) cylindrical shells. It considers temperature-dependent (TD) properties and geometric non-linearity (the von Karman effect). The study systematically solves a transient heat conduction equation using finite differences method and the Crank–Nicolson method. During the heating stages
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Structural Health Monitoring of Long-Span Continuous Girder Bridge: System Implementation and Data Analysis Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-05 Xiao-Mei Yang, Zhi-Wen Wang, Xu Zheng, Ze-Xin Guan, Dong-Hui Yang, Ting-Hua Yi
Long-span bridges are the key component of the human transportation system, linking communities over vast obstacles. To ensure the safe operation of long-span bridges, structural health monitoring (SHM) is perhaps the most effective solution. This study takes a 430m four-span continuous girder bridge as an example and systematically presents an implementation example of the SHM system on the bridge
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Vibration Control Effect Analysis of PTMD in Wind Turbine Tower Under Multi-Hazard Action of Earthquake and Vortex-Induced Wind Int. J. Struct. Stab. Dyn. (IF 3.6) Pub Date : 2024-03-05 Shengqiang Zhao, Zheng Lu, Qiaoqiao Fan, Kaoshan Dai
Considering the importance of wind turbine tower, its vibration under multi-hazard action consisting of vortex-induced load and seismic load needs to be controlled, especially as the height of the wind turbine tower increases, it increases the risk of its higher-order vibration. To address this issue, theoretical equations for vortex-induced load based on the governing equation of particle damping