Study on Improved Fuzzy Semi-Active Control for the Cable-stayed with MR Damper by Finite Element Simulation

2014 ◽  
Vol 926-930 ◽  
pp. 1429-1435
Author(s):  
Zheng Xin Zhang ◽  
Qian Hui Liu
Keyword(s):  
Finite Element ◽  
Active Control ◽  
Control Strategy ◽  
Control Method ◽  
Mr Damper ◽  
Scaling Factor ◽  
Element Simulation ◽  
Active Control Strategy ◽  
Active Control Method ◽  
Better Than

An improved fuzzy semi-active control method forparametric vibration of the cable-stayed with MR damper was proposed. The parametervibration control of the cable M22 and the cable M13 of the Hongshuihecable-stayed Bridge was studied. The results show that the effect of theimproved fuzzy semi-active control strategy was better than that of the fuzzysemi-active control strategy. In addition, the proposed fuzzy semi-activecontrol strategy does not need to debug the scaling factor of input variablesand output variables and the MR damper required lower voltages. Therefore，theproposed method makes the fuzzy control more intelligent.

Semi Active Control of Chaos in Systems Excited by Non-Ideal DC Motor

2011 ◽  
Vol 110-116 ◽  
pp. 5367-5372
Author(s):  
Saeed Farokhi ◽  
Aghil Yosefi Komma ◽  
Zohreh Bayat
Keyword(s):  
Active Control ◽  
Control Method ◽  
Mr Damper ◽  
Dc Motor ◽  
Viscous Damper ◽  
Control Of Chaos ◽  
Linear Spring ◽  
Chaotic Characteristic ◽  
Magneto Rheological ◽  
Active Control Method

In this paper, semi active control of non-ideal mechanical system with Magneto-Rheological (MR) damper is presented. The setup composed of a motor operating on a structure with mass M connected to a fixed frame by a non-linear spring and with a linear viscous damper. From the investigations carried out it is possible to observe the DC motor influence on the vibrating system along with non-periodic motions with chaotic characteristic. To control this system linear viscose damper is substituted by MR damper. A semi-active control method, sky-hook control is used in this study. Our results suggest that the addition of a MR damper turns the phase space smoother and it is so effective to suppress chaos.

ACTIVE CONTROL OF UNCERTAIN CHAOTIC SYSTEMS WITH PARAMETRIC PERTURBATION

2006 ◽  
Vol 20 (16) ◽  
pp. 2255-2264
Author(s):  
HAO ZHANG ◽  
XI-KUI MA
Keyword(s):  
Active Control ◽  
Control Strategy ◽  
Chaotic Systems ◽  
Control Method ◽  
Sufficient Condition ◽  
Parametric Perturbation ◽  
Uncertain Chaotic Systems ◽  
The Stability ◽  
Parameters Perturbation ◽  
Active Control Method

This paper presents an active control method for controlling general uncertain chaotic systems with parameters perturbation. And a sufficient condition is drawn for the stability of the controlled chaotic systems and is applied to guiding the design of the controllers. Finally, numerical results are used to show the robustness and effectiveness of the proposed control strategy.

Semi-Active Control on Stay Cable Vibration Based on Fuzzy Logical Theory

2010 ◽  
Vol 163-167 ◽  
pp. 2815-2818
Author(s):  
Zhi Rong Xiao
Keyword(s):  
Active Control ◽  
Passive Control ◽  
Control Method ◽  
Fuzzy Controller ◽  
Simulation Analysis ◽  
Mr Damper ◽  
Stay Cable ◽  
Logical Theory ◽  
Better Than ◽  
Fuzzy Logical

A new method of semi-active control on cable-MR system based on fuzzy logical theory in this article is presented. In the method, the voltage to drive MR damper is determined by fuzzy controller, which avoids the difficulty of calculating the voltage from the strong nonlinear MR model. In order to testify the effectiveness of the proposed method, the simulation analysis to a typical cable is made and its results are compared to the passive control (passive-on, passive-off) of MR and active control (LQR). The conclusion is that the operation of fuzzy control method is simple and practical. Its effect is better than the passive methods, but is a little worse than LQR.

Comparative study of synchronization methods of fractional order chaotic systems

2016 ◽  
Vol 5 (3) ◽  
Author(s):  
Ajit K. Singh ◽  
Vijay K. Yadav ◽  
S. Das
Keyword(s):  
Active Control ◽  
Fractional Order ◽  
Chaotic Systems ◽  
Control Method ◽  
Salient Feature ◽  
Backstepping Method ◽  
Backstepping Approach ◽  
Active Control Method ◽  
Methods Numerical ◽  
Better Than

AbstractIn this article, the active control method and the backstepping method are used during the synchronization of fractional order chaotic systems. The salient feature of the article is the analysis of time of synchronization between fractional order Chen and Qi systems using both the methods. Numerical simulation and graphical results clearly exhibit that backstepping approach is better than active control method for synchronization of the considered pair of systems, as it takes less time to synchronize while using the first one compare to second one.

High average power coherent femtosecond pulse combining system based on an all fiber active control method

2018 ◽  
Vol 15 (7) ◽  
pp. 075101 ◽  
Author(s):  
H L Yu ◽  
Z X Zhang ◽  
X L Wang ◽  
R T Su ◽  
H W Zhang ◽  
...  
Keyword(s):  
Active Control ◽  
Femtosecond Pulse ◽  
Control Method ◽  
Average Power ◽  
High Average Power ◽  
Active Control Method

scholarly journals ACTIVE CONTROL STRATEGY FOR DENSITY-WAVE IN GAS-LIFTED WELLS

2006 ◽  
Vol 39 (2) ◽  
pp. 1075-1080 ◽  
Author(s):  
Laure Sinègre ◽  
Nicolas Petit ◽  
Thierry Saint-Pierre ◽  
Pierre Lemétayer
Keyword(s):  
Active Control ◽  
Control Strategy ◽  
Density Wave ◽  
Active Control Strategy

Comparison of Times of Synchronization of Chaotic Burke-Shaw Attractor with Active Control and Integer and Optimum Fractional-Order Pecaro Carroll Method

2021 ◽  
Author(s):  
Ali Durdu ◽  
Yılmaz Uyaroğlu
Keyword(s):  
Active Control ◽  
Fractional Order ◽  
Chaotic Attractor ◽  
Secure Communication ◽  
Chaotic Systems ◽  
Control Method ◽  
Initial Conditions ◽  
Data Communication ◽  
Experimental Results ◽  
Active Control Method

Abstract Many studies have been introduced in the literature showing that two identical chaotic systems can be synchronized with different initial conditions. Secure data communication applications have also been made using synchronization methods. In the study, synchronization times of two popular synchronization methods are compared, which is an important issue for communication. Among the synchronization methods, active control, integer, and fractional-order Pecaro Carroll (P-C) method was used to synchronize the Burke-Shaw chaotic attractor. The experimental results showed that the P-C method with optimum fractional-order is synchronized in 2.35 times shorter time than the active control method. This shows that the P-C method using fractional-order creates less delay in synchronization and is more convenient to use in secure communication applications.

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