Nonlinear characteristics of suspension bridges with inclined hangers under harmonic excitations and countermeasures for vibration control

2021 ◽  
Author(s):  
Jingxue Wang ◽  
Yi Hui ◽  
Siu‐Seong Law ◽  
Yuan Jiang
Keyword(s):  
Vibration Control ◽  
Suspension Bridges ◽  
Nonlinear Characteristics ◽  
Harmonic Excitations

scholarly journals Vertical vibration control of suspension bridges subjected to earthquake by Semi-active MR dampers

2017 ◽  
Vol 24 (2) ◽  
pp. 439-451 ◽  
Author(s):  
Saeid Pourzeynali ◽  
Arash Bahar ◽  
Solmaz Pourzeynali
Keyword(s):  
Vibration Control ◽  
Vertical Vibration ◽  
Suspension Bridges ◽  
Mr Dampers

LQR and Fuzzy Controller Application with Bingham Modified Model in Semi Active Vibration Control of 11-DOFs Full Car Suspension System

2013 ◽  
Author(s):  
Seiyed Hamid Zareh ◽  
Ali Fellahjahromi ◽  
Reza Hayeri ◽  
Amir A. A. Khayyat ◽  
A. Zabihollah
Keyword(s):  
Vibration Control ◽  
Fuzzy Controller ◽  
Active Vibration Control ◽  
Suspension System ◽  
Modified Model ◽  
Car Suspension ◽  
Active Vibration

Spectrum of harmonic excitations on fractals

1984 ◽  
Vol 45 (2) ◽  
pp. 191-206 ◽  
Author(s):  
R. Rammal
Keyword(s):  
Harmonic Excitations

Study of vibration control system of CFRP composite beam with piezoceramics and electro-rheological fluids actuators

2001 ◽  
Vol 89 ◽  
pp. 18-20
Author(s):  
Takeshi Takawa ◽  
Takehito Fukuda
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Composite Beam ◽  
Cfrp Composite

Modeling and Evaluation of Magnetorheological Dampers with Fluid Leakage for Cable Vibration Control

2021 ◽  
Vol 26 (2) ◽  
pp. 04020119
Author(s):  
Peng Zhou ◽  
Min Liu ◽  
Weiming Kong ◽  
Yingmei Xu ◽  
Hui Li
Keyword(s):  
Vibration Control ◽  
Magnetorheological Dampers ◽  
Cable Vibration ◽  
Fluid Leakage

Reduction of structural vibrations with the piezoelectric stacks ring

2020 ◽  
Vol 64 (1-4) ◽  
pp. 729-736
Author(s):  
Jincheng He ◽  
Xing Tan ◽  
Wang Tao ◽  
Xinhai Wu ◽  
Huan He ◽  
...  
Keyword(s):  
Vibration Control ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Structural Vibrations ◽  
Rotor Systems ◽  
Fea Model ◽  
Piezoelectric Stacks ◽  
Shunt Damping ◽  
Reduction Effect ◽  
Euler Bernoulli Beam

It is known that piezoelectric material shunted with external circuits can convert mechanical energy to electrical energy, which is so called piezoelectric shunt damping technology. In this paper, a piezoelectric stacks ring (PSR) is designed for vibration control of beams and rotor systems. A relative simple electromechanical model of an Euler Bernoulli beam supported by two piezoelectric stacks shunted with resonant RL circuits is established. The equation of motion of such simplified system has been derived using Hamilton’s principle. A more realistic FEA model is developed. The numerical analysis is carried out using COMSOL® and the simulation results show a significant reduction of vibration amplitude at the specific natural frequencies. Using finite element method, the influence of circuit parameters on lateral vibration control is discussed. A preliminary experiment of a prototype PSR verifies the PSR’s vibration reduction effect.

Control of Vibrations due to Moving Loads on Suspension Bridges

2006 ◽  
Vol 11 (3) ◽  
pp. 293-318 ◽  
Author(s):  
M. Zribi ◽  
N. B. Almutairi ◽  
M. Abdel-Rohman
Keyword(s):  
Bridge Deck ◽  
Suspension Bridge ◽  
Lyapunov Theory ◽  
Dynamic Responses ◽  
Suspension Bridges ◽  
Control Force ◽  
Moving Loads ◽  
Hydraulic Actuator ◽  
Long Span ◽  
Suspended Cables

The flexibility and low damping of the long span suspended cables in suspension bridges makes them prone to vibrations due to wind and moving loads which affect the dynamic responses of the suspended cables and the bridge deck. This paper investigates the control of vibrations of a suspension bridge due to a vertical load moving on the bridge deck with a constant speed. A vertical cable between the bridge deck and the suspended cables is used to install a hydraulic actuator able to generate an active control force on the bridge deck. Two control schemes are proposed to generate the control force needed to reduce the vertical vibrations in the suspended cables and in the bridge deck. The proposed controllers, whose design is based on Lyapunov theory, guarantee the asymptotic stability of the system. The MATLAB software is used to simulate the performance of the controlled system. The simulation results indicate that the proposed controllers work well. In addition, the performance of the system with the proposed controllers is compared to the performance of the system controlled with a velocity feedback controller.

Vibration Control of Two-mass System with Low Inertia Ratio Considering Practical Use

1997 ◽  
Vol 117 (11) ◽  
pp. 1593-1599
Author(s):  
Shigeo Morimoto ◽  
Akira Hamamoto ◽  
Yoji Takeda
Keyword(s):  
Vibration Control ◽  
Mass System
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