The paper shows the possible way of identification of shock absorber nonlinear model characteristics using genetic algorithm. 2 DOF quarter car model is used with nonlinear characteristics of main spring and damping forces defined as piecewise functions. Using time courses of position, velocity and acceleration of both masses under kinematic excitation the characteristics are found. Simulation results are satisfactory.
The paper is focused on analysis of dynamic properties of controlled drive systems. It describes the possible ways of stability analysis. Paper is also focused on bifurcation of steady states and possible oceurence of chaotic behavior.
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