Automotive Science and Engineering
Iran University of Science & Technology
Sat, Jul 27, 2024
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Volume 12, Issue 3 (9-2022)
ASE 2022, 12(3): 3905-3913 |
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Nourollahi Golouje Y, Abtahi S M, majidi M. Forcing Frequency Analysis and Control of Chaos in Vehicle Dynamics Using Time delay feedback Algorithm. ASE 2022; 12 (3) :3905-3913
URL: http://www.iust.ac.ir/ijae/article-1-616-en.html
URL: http://www.iust.ac.ir/ijae/article-1-616-en.html
Department of Mechanical Engineering, Faculty of Industrial and Mechanical Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran
Abstract: (4318 Views)
The chaotic dynamic analysis along with chaos controller of an active suspension in vehicles has been studied in this paper. The unstable periodic orbits of the system are stabilized using the developed delay feedback control algorithm based on the fuzzy sliding mode system. Firstly, the equations of motions in the chaotic half-vehicle model are derived via Newton-Euler rules and simulated by the fourth order Runge-Kutta method. Then, forcing frequency has been used to confirm nonlinear phenomenon such as jump and chaos in the vehicle system. Critical values of the control parameters in the forcing frequency demonstrate the changes of system behavior from the periodic to the irregular chaotic responses. In order to eliminate the chaotic behaviors in the vertical dynamics of vehicle, a novel fuzzy sliding delay feedback control algorithm is developed on the active suspension with chaotic responses. Using fuzzy logic, the controller gain of the sliding delay feedback control is online estimated that is caused to reject the chattering phenomenon in the sliding mode algorithm beside the improvement of the responses. Simulation results of the control system depict a reduction of settling time and energy consumption along with eliminating the overshoots and chaotic vibrations
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