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This paper proposes an uncertainty modeling and robust controller design method for miniaturized 3 degrees-of-freedom OISs to deal with its product variabilities. A mathematical model of OISs with product variabilities is developed based on finite element analysis of uncertainties specific for this device. μ-synthesis technique is applied to the uncertainty model to design a robust controller, in...
Autonomous vehicle is an efficient component in vehicle active system to reduce traffic accidents. The path planning of lane change for autonomous vehicle is an important component in the autonomous vehicle field. In order to generate a path for passing the front vehicle, a new path planning method that is curvature-continuous and satisfies the vehicle nonholonomic constraint is introduced. Firstly,...
Aiming at the problems of vibration on hydraulic pipe in aircraft, using math modeling and simulation is a quite efficient and effective method in theory. In this paper, the 14-equation Fluid-Structure Interaction (FSI) with influence of viscous friction is established for modeling the pipe and fluid. By using the Transfer Matrix Method (TMM), the components and pipelines are connected to get the...
The basic rotate-vector optimization method (BROM) is a direct optimization algorithm and is valuable to engineering application. Multipoint rotate-vector optimization method (MROM) is an improved algorithm based on BROM. In the On-line Identification based Optimal Control (OIOC) scheme, the author apply MROM to optimize the PID controller, the simulation is done on the co-simulation platform and...
This paper presents a parameter identification method with nonlinear ordinary differential equation (ODE) model for electro-hydraulic servo systems (EHSS) based on Matlab toolbox, in which the values of known parameters are fixed and the values of unknown parameters are identified. In order to avoid the problem of over-parameterization, this paper divides the identification into two parts, i.e. no-load...
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