Vortex-induced vibration of a circular cylinder with nonlinear stiffness: prediction using forced vibration data

Zhang, Mingjie; Song, Ye‐Qiong; Abdelkefi, Abdessattar; Yu, Huaqing; Wang, Junlei

doi:10.1007/s11071-022-07332-7

Cited by 27 publications

(7 citation statements)

References 60 publications

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“…VIV events on suspension bridges have been observed sporadically both domestically and internationally. [ 247 , 248 , 249 ] Hence, the adoption of sophisticated and intelligent strategies becomes imperative in the realm of bridge health monitoring. Vibration changes monitoring in bridge structures enables the prediction and early detection of VIV.…”

Section: Teng‐enabled Smart Bridgesmentioning

confidence: 99%

Triboelectric Nanogenerator‐Enabled Digital Twins in Civil Engineering Infrastructure 4.0: A Comprehensive Review

Pang,

He,

Liu

et al. 2024

Advanced Science

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The emergence of digital twins has ushered in a new era in civil engineering with a focus on achieving sustainable energy supply, real‐time sensing, and rapid warning systems. These key development goals mean the arrival of Civil Engineering 4.0.The advent of triboelectric nanogenerators (TENGs) demonstrates the feasibility of energy harvesting and self‐powered sensing. This review aims to provide a comprehensive analysis of the fundamental elements comprising civil infrastructure, encompassing various structures such as buildings, pavements, rail tracks, bridges, tunnels, and ports. First, an elaboration is provided on smart engineering structures with digital twins. Following that, the paper examines the impact of using TENG‐enabled strategies on smart civil infrastructure through the integration of materials and structures. The various infrastructures provided by TENGs have been analyzed to identify the key research interest. These areas encompass a wide range of civil infrastructure characteristics, including safety, efficiency, energy conservation, and other related themes. The challenges and future perspectives of TENG‐enabled smart civil infrastructure are briefly discussed in the final section. In conclusion, it is conceivable that in the near future, there will be a proliferation of smart civil infrastructure accompanied by sustainable and comprehensive smart services.

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Section: Teng‐enabled Smart Bridgesmentioning

confidence: 99%

Triboelectric Nanogenerator‐Enabled Digital Twins in Civil Engineering Infrastructure 4.0: A Comprehensive Review

Pang,

He,

Liu

et al. 2024

Advanced Science

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“…As the overhead contact line system suffers multiple impacts from the pantograph [2], wind load [3][4][5][6], vehicle-track perturbations [7][8][9][10][11], electric shocks [12], temperature variance [13][14][15] and some other types of disturbances [16,17], almost all the rail operators have widely recognised the overhead contact line as the most vulnerable part in the traction power system [18]. Therefore, the dynamics of the overhead contact line and the pantograph have attracted ever-increasing attention from many scholars.…”

Section: Literature Reviewmentioning

confidence: 99%

Effect of Overhead Contact Line Pre-Sag on the Interaction Performance with a Pantograph in Electrified Railways

Mei

Song

2022

Energies

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In the high-speed rail industry, the overhead contact line erected along the railroad is used to supply the electricity to the high-speed train via a pantograph on the carbody’s roof. This work attempts to explore the effect of contact line pre-sag on the contact quality between the pantograph and the contact line. A nonlinear finite element approach is implemented to build the overhead contact line system with accurate description of the pre-sag of the contact line. Through a nonlinear solution, the effect of contact line pre-sag on the contact force is analysed with different train speeds and tension classes. The analysis result indicates the feasibility of tuning the pre-sag to improve the interaction performance at a given speed and tension class. In the low-speed range, the change of pre-sag does not have a significant effect on the interaction performance. However, when the speed increases up to a certain value, the effect of pre-sag on the contact force is nonnegligible. The increase in tension can reduce the sensitivity of the interaction performance to the pre-sag. An optimisation procedure is implemented to obtain the optimal amount of pre-sag for different train speeds and tension classes. The results indicate a necessity to include a certain amount of contact line pre-sag to maintain an excellent interaction performance at high speed.

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“…Vortex-Induced Vibrations (VIV), which is a subcategory of flow-induced instabilities, have been extensively studied by mechanical engineering researchers (Dong et al, 2022, Wang and Zhang, 2022. The reason for this interest lies in the fact that in practice many civil structures are subjected to the VIV phenomenon and fatigue caused by it, can be strongly damaging.…”

Section: Introductionmentioning

confidence: 99%

New Nonlinear Coupled Model for Modeling the Vortex Induced Vibrations of Flexibly Supported Circular Cylinders

Zhang,

Afsharfard,

Chen

et al. 2023

Preprint

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The oscillation of an elastically mounted rigid cylinder excited by steady fluid flow is investigated. Regarding the nonlinearity of real practical structures like marine risers and the stay cable of a long-span bridge, the dynamic behavior of the circular cylinder is described by double Duffing equations and the aerodynamic force performance of the wake flow is expressed by wake oscillator equation. Unlike previous studies, in the present investigation, attention is focused on coupling the wake oscillator equations, taking into account quadratic terms. Following this approach, the cylinder's combined cross-flow and in-line Vortex-Induced Vibrations (VIV) are modeled more accurately. Empirical coefficients are adjusted through comparison with previous credible experimental studies and the effects of changing coefficients of the quadratic terms on major VIV parameters are investigated. The oscillating amplitude calculated by the present model is close to that of the experiment. The relative error of results obtained by the present coupled model is lower than the previous model. Moreover, the present model successfully predicts the moving trajectories of a circular cylinder under VIV in a figure-of-eight shape.

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Vortex-induced vibration of a circular cylinder with nonlinear stiffness: prediction using forced vibration data

Cited by 27 publications

References 60 publications

Triboelectric Nanogenerator‐Enabled Digital Twins in Civil Engineering Infrastructure 4.0: A Comprehensive Review

Triboelectric Nanogenerator‐Enabled Digital Twins in Civil Engineering Infrastructure 4.0: A Comprehensive Review

Effect of Overhead Contact Line Pre-Sag on the Interaction Performance with a Pantograph in Electrified Railways

New Nonlinear Coupled Model for Modeling the Vortex Induced Vibrations of Flexibly Supported Circular Cylinders

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