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Vehicle suspension system stochastic optimal control

Author: ZhengXiaoGang
Tutor: ZhuWeiQiu
School: Zhejiang University
Course: Engineering Mechanics
Keywords: Vehicle suspension system Random Vibration Stochastic averaging method Stochastic optimal control Stochastic Dynamic Programming
CLC: U463.33
Type: Master's thesis
Year: 2003
Downloads: 226
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Abstract


This paper studies the suspension components with hysteretic vehicle suspension system based on the equivalent linearization LQG control and nonlinear stochastic averaging method based on stochastic optimal control . The first method is the application of the equivalent linear method to get the equivalent linear system of equations , obtained through optimal control theory optimal control, and then obtained by solving the Lyapunov equation has been uncontrolled and controlled system response and performance. The second method is replaced with an equivalent force hysteretic restoring force linear and nonlinear damping force , the application of stochastic averaging method to get information about the system , the average total energy It (?) Equation by solving the system with the average traversal control problem the dynamic programming equation optimal control, then solving with average It (?) equation corresponding Fokker-Planck-Kolmogorov (FPK) equation was not controlled and control systems have been the response and performance. Numerical results show that the second control strategy than the first control strategy is more effective.

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Travel System > Suspension
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