Optimization of electromagnetic damper and suspension system of vehicle using bee’s algorithm

Subject Areas : Optimization

saeed  yaghoubi ¹ (مدرس دانشگاه)
علی رضا  اطمینانی اصفهانی ² (مهندس شرکت فولاد)
افشین  قنبرزاده ³ (عضو هیات علمی گروه مکانیک دانشگاه شهید چمران اهواز)

Received: 2016-11-13 Accepted : 2016-12-02 Published : 2017-05-22

Keywords: Optimization, Suspension system, Electromagnetic damper, Bee’s algorithm,

Abstract :

In this study, electromagnetic damper using the model of one-fourth vehicle with two degrees of freedom, and the model of one-half with four degrees of freedom, and the effects of improving the function of suspension system have been investigated. Using the bee’s optimization algorithm two phases, the simulated model, then, has been optimized. In the first phase, the constants of electro-magnetic damper have been optimized, and the parameters of suspension system have been assumed fixed. In the second phase, the parameters of suspension system have also been optimized beside the constants of electro-magnetic damper. In both phases, the size of optimized parameters using complex input including ten sine inputs with different amplitude and one step input have been earned, and eventually the size of Integral of Absolute Error according to different inputs has been calculated. In order to determine the final function in the optimization, IAE has been used, which has its aim in minimizing the space below the diagram (vehicle movement). The results indicate that the size of the final fuction is lower in comparison with the one-fourth model. The size of final function is lower in the second way of optimization; for instance, due to exetring sine input with the amplitude of 5, the size of this function for the one-fourth model and the one-half model was 0.293 and 0.283 for the first model; and 0.261 and 0.255 for the second one respectively.