scholarly journals Vibration Control of a Power Transmission Tower with Pounding Tuned Mass Damper under Multi-Component Seismic Excitations

2017 ◽  
Vol 7 (5) ◽  
pp. 477 ◽  
Author(s):  
Li Tian ◽  
Kunjie Rong ◽  
Peng Zhang ◽  
Yuping Liu
Keyword(s):  
Vibration Control ◽  
Power Transmission ◽  
Tuned Mass Damper ◽  
Transmission Tower ◽  
Seismic Excitations ◽  
Mass Damper

scholarly journals Vibration Control of a High-Rise Slender Structure with a Spring Pendulum Pounding Tuned Mass Damper

Actuators ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 44
Author(s):  
Qi Wang ◽  
Hong-Nan Li ◽  
Peng Zhang
Keyword(s):  
Vibration Control ◽  
Power Transmission ◽  
Tuned Mass Damper ◽  
Width Ratio ◽  
Seismic Action ◽  
Transmission Tower ◽  
Structural Vibrations ◽  
High Rise ◽  
Mass Damper ◽  
Slender Structure

High-rise structures are normally tall and slender with a large height-width ratio. Under the strong seismic action, such a structure may experience violent vibrations and large deformation. In this paper, a spring pendulum pounding tuned mass damper (SPPTMD) system is developed to reduce the seismic response of high-rise structures. This SPPTMD system consists of a barrel limiter with the built-in viscoelastic material and a spring pendulum (SP). This novel type of tuned mass damper (TMD) relies on the internal resonance feature of the spring pendulum and the collision between the added mass and barrel limiter to consume the energy of the main structure. Based on the Hertz-damper model, the motion equation of the structure-SPPTMD system is derived. Furthermore, a power transmission tower is selected to evaluate the vibration reduction performance of the SPPTMD system. Numerical results revealed that the SPPTMD system can effectively reduce structural vibrations; the reduction ratio is greater than that of the spring pendulum. Finally, the influence of the key parameters on the vibration control performance is conducted for future applications.

A Bidirectional Pounding Tuned Mass Damper and Its Application to Transmission Tower-Line Systems under Seismic Excitations

2019 ◽  
Vol 19 (06) ◽  
pp. 1950056 ◽  
Author(s):  
Li Tian ◽  
Kunjie Rong ◽  
Kaiming Bi ◽  
Peng Zhang
Keyword(s):  
Element Model ◽  
Tuned Mass Damper ◽  
Seismic Intensity ◽  
Design Parameters ◽  
Seismic Responses ◽  
Transmission Tower ◽  
Control Effect ◽  
Seismic Excitations ◽  
Line System ◽  
Mass Damper

Failures of transmission tower-line systems have frequently occurred during large earthquakes. It is essential to control the excessive vibrations of transmission tower-line systems to ensure their safe operation in such events. This paper numerically investigates the effectiveness of using a novel bidirectional pounding tuned mass damper (BPTMD) to control the seismic responses of transmission tower-line system when subjected to earthquake ground motions. A finite element model of a typical transmission tower-line system with BPTMD is developed using the commercial software ABAQUS, with the accuracy of the results verified against a previous study. The seismic responses of the system with and without BPTMD are calculated. For comparison, the control effect of using the conventional bidirectional tuned mass damper is also calculated and discussed. Finally, a parametric study is performed to investigate the effects of the mass ratio, seismic intensity, gap size and frequency ratio on the seismic response of the system, while optimal design parameters are obtained.

Research on Tuned Mass Damper for Vibration Control of Tower under Multi-Dimensional Seismic Excitations

2013 ◽  
Vol 353-356 ◽  
pp. 2181-2186
Author(s):  
Yu Wei Dai ◽  
Chao Liu ◽  
Wen Feng Li ◽  
Li Tian
Keyword(s):  
Vibration Control ◽  
Equations Of Motion ◽  
Three Dimensional ◽  
Engineering Application ◽  
Element Model ◽  
Tuned Mass Damper ◽  
Calculation Model ◽  
Seismic Excitations ◽  
Mass Damper ◽  
Three Dimensional Finite Element

The tuned mass damper (TMD) for vibration control of tower subjected to multi-dimensional seismic excitations is studied in this paper. Calculation model of the tuned mass damper is introduced, and the equations of motion of a tower with tuned mass damper are derived, and the calculation parameters of the tuned mass damper are given based on the control structure. According to a practical engineering, the three-dimensional finite element model of a tower is established using SAP2000. Three typical seismic records are selected according the code of seismic design. Vibration control for tower model with tuned mass damper under multi-dimensional seismic excitations is performed by using numerical simulation. The maximum responses of displacement and axial force of the tower structure without and with TMD are obtained. The results show that the TMD could decrease the responses of the tower in three directions, and the tower with TMD can be a reference for tower practice engineering application.

Effect of hysteresis properties of shape memory alloy-tuned mass damper on seismic control of power transmission tower

2018 ◽  
Vol 22 (4) ◽  
pp. 1007-1017 ◽  
Author(s):  
Li Tian ◽  
Guodong Gao ◽  
Canxing Qiu ◽  
Kunjie Rong
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Power Transmission ◽  
Tuned Mass Damper ◽  
Simulation Software ◽  
Seismic Vibration ◽  
Seismic Responses ◽  
Transmission Tower ◽  
Transmission Towers ◽  
Mass Damper

Statistics from past strong earthquakes revealed that electricity transmission towers were vulnerable to earthquake excitations. It is necessary to mitigate the seismic responses of power transmission towers to ensure the safety of such structures. In this research, a novel shape memory alloy-tuned mass damper is proposed, and seismic vibration control of power transmission tower using shape memory alloy-tuned mass damper based on three types of shape memory alloy materials (i.e. NiTi, M-CuAlBe, P-CuAlBe) is analyzed. The detailed three-dimensional finite element model of a power transmission tower incorporated with shape memory alloy-tuned mass damper is developed using numerical simulation software ANSYS. The control effects of shape memory alloy-tuned mass damper on the seismic vibration of power transmission tower are assessed using nonlinear time history analysis method. The interested seismic performance indices include displacement, acceleration, and base shear force. In addition to the shape memory alloy materials, the influence of seismic intensity and frequency ratio are conducted for the optimal design. It is shown that installing shape memory alloy-tuned mass damper well reduced the seismic responses of power transmission tower. The comparison between different shape memory alloys indicated that the damping of the shape memory alloy-tuned mass damper is beneficial to mitigate the vibrations.

scholarly journals Study on Seismic Control of Power Transmission Tower-Line Coupled System under Multicomponent Excitations

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Li Tian ◽  
Qiqi Yu ◽  
Ruisheng Ma
Keyword(s):  
Power Transmission ◽  
Equations Of Motion ◽  
Three Dimensional ◽  
Coupled System ◽  
Time Domain Analysis ◽  
Tuned Mass Damper ◽  
Transmission Tower ◽  
Line System ◽  
Seismic Control ◽  
Mass Damper

The seismic control of power transmission tower-line coupled system subjected to multicomponent excitations is studied in this paper. The schematic of tuned mass damper is introduced, and equations of motion of a system with tuned mass damper under multi-component excitations are proposed. Three-dimensional finite tower-line system models are created based on practical engineering in studying the response of this system without and with control. The time domain analysis takes into account geometric nonlinearity due to finite deformation. The optimal design of the transmission tower-line system with tuned mass damper is obtained according to different mass ratio. The effects of wave travel, coherency loss, and different site conditions on the system without and with control are investigated, respectively.

Vibration control of flexible structures with an Active Modal Tuned Mass Damper

2011 ◽  
Vol 44 (1) ◽  
pp. 5371-5376 ◽  
Author(s):  
G. Cazzulani ◽  
C. Ghielmetti ◽  
F. Resta ◽  
F. Ripamonti
Keyword(s):  
Vibration Control ◽  
Flexible Structures ◽  
Tuned Mass Damper ◽  
Mass Damper
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