Dynamic Responses and Vibration Control of the Transmission Tower-Line System: A State-of-the-Art Review

Chen, Bo; Guo, Weihua; Peng-yun, LI; Xie, Wenping

doi:10.1155/2014/538457

Cited by 29 publications

(26 citation statements)

References 80 publications

(83 reference statements)

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“…Regarding the in-plane vibration of the transmission line, the kinetic energy and the potential energy of a transmission line can be computed by using the generalized velocity and generalized displacement, respectively. The application of the Hamilton's variational principle can lead to the equation of motion of a transmission line [19]. The kinetic energy of the transmission line can be expressed based on the Lagrange formulation…”

Section: Model Of Transmission Tower-linementioning

confidence: 99%

Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations

Chen

Xiao

Peng-yun

et al. 2015

Shock and Vibration

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The vibration control and performance evaluation on a transmission-tower line system by using friction dampers subjected to wind excitations are carried out in this study. The three-dimensional finite element (FE) model of a transmission tower is firstly constructed. A two-dimensional lumped mass model of a transmission tower is developed for dynamic analysis. The analytical model of transmission tower-line system is proposed by taking the dynamic interaction between the tower and the transmission lines into consideration. The mechanical model of passive friction damper is presented by involving the effects of damper axial stiffness. The equation of motion of the transmission tower-line system incorporated with the friction dampers disturbed by wind excitations is established. A real transmission tower-line system is taken as an example to examine the feasibility and reliability of the proposed control approach. An extensive parameter study is carried out to find the optimal parameters of friction damper and to assess the effects of slipping force axial stiffness and hysteresis loop on control performance. The work on an example structure indicates that the application of friction dampers with optimal parameters could significantly reduce wind-induced responses of the transmission tower-line system.

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Section: Model Of Transmission Tower-linementioning

confidence: 99%

Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations

Chen

Xiao

Peng-yun

et al. 2015

Shock and Vibration

Self Cite

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“…Under a wind load, the mean displacement and the maximum axial force on anchor tower are much higher than those under the equivalent static load. Chen et al [12] and Aboshosha and El Damatty [13] emphasized that the influence of dynamic interaction of the conductor and ground wires on towers needs to be investigated. Zhou et al [14,15] introduced the theory of rain wind-induced vibration on the stay cable in transmission line.…”

Section: Introductionmentioning

confidence: 99%

Statistical Analysis of Wind‐Induced Dynamic Response of Power Towers and Four‐Circuit Transmission Tower‐Line System

Zhang

Wang

2018

Shock and Vibration

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Only one wind field model loading the transmission tower or the tower-line system was investigated in the previous studies, while the influence of two different wind field models was not considered. In addition, only one sample of the wind speed random process was used in the past numerical simulations, and the multiple dynamic response statistical analysis should be carried out. In this paper, statistical analysis of the wind-induced dynamic response of single towers and the transmission tower-line system is performed with the improved accuracy. A finite element model of the transmission tower-line system (the tower consisted of both steel tubes and angel steels) is established by ANSYS software. The analysis was performed by three statistical methods. The effects of the length of the time history and of the number of samples were investigated. The frequency histograms of samples follow the Gaussian distribution. The characteristic statistical parameters of samples were random. The displacements and the axial forces of the low tower are larger than those of the high tower. Two wind field models were applied to simulate the wind speed time history. In field 1 model, Davenport wind speed spectrum and Shiotani coherence function were applied, while in field 2 model Kaimal wind speed spectrum and Davenport coherence function were used. The results indicate that wind field 1 is calmer than wind field 2. The displacements and the axial forces of the tower-line system are less than those of single towers, which indicate damping of wind-induced vibrations by the transmission line. An extended dynamic response statistical analysis should be carried out for the transmission tower-line system.

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“…During the past two decades, many researchers and engineers have paid much attention to this issue and proposed many techniques to improve the wind-resistance of the transmission towers [5]. Conventional techniques aim at increasing the stiffness of the transmission tower by enlarging the cross-section area of the steel members or shortening the effective member length by adding additional members.…”

Section: Introductionmentioning

confidence: 99%

“…These methods will tremendously increase the project cost and thus are not financially acceptable [2]. An alternative approach to prevent the catastrophic damage of transmission tower is to install vibration control devices [5,6].…”

Section: Introductionmentioning

confidence: 99%

Control of Wind-Induced Vibration of Transmission Tower-Line System by Using a Spring Pendulum

Zhang

Ren

et al. 2015

Mathematical Problems in Engineering

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The high-voltage power transmission tower-line system, which is a high flexible structure, is very susceptible to the wind-induced vibrations. This paper proposes the utilization of the internal resonance feature of the spring pendulum to reduce the wind-induced vibration of a transmission tower. The kinetic expression of the spring pendulum system is obtained through Lagrangian equation. The condition of the internal resonance is verified to be = 2, in which is the ratio of the spring mode frequency over the pendulum mode frequency. A 55 m tower in the Liaoning province is established in SAP2000 to numerically verify the effectiveness of the proposed device. The spring pendulum is modeled using Link element. The wind speed history is generated based on Kaimal spectrum using harmonic superposition method. Results show that, (1) compared with the suspended mass pendulum, the spring pendulum absorbs more energy and reduces the oscillation more effectively and (2) the vibration control performance of the proposed spring pendulum improves as the external wind load increases.

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Dynamic Responses and Vibration Control of the Transmission Tower-Line System: A State-of-the-Art Review

Cited by 29 publications

References 80 publications

Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations

Performance Evaluation on Transmission Tower-Line System with Passive Friction Dampers Subjected to Wind Excitations

Statistical Analysis of Wind‐Induced Dynamic Response of Power Towers and Four‐Circuit Transmission Tower‐Line System

Control of Wind-Induced Vibration of Transmission Tower-Line System by Using a Spring Pendulum

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