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Articles 1 - 4 of 4
Full-Text Articles in Engineering
On State-Feedback Controller Synthesis For A Class Of Second-Order Nonlinear Systems With Uncertainties, Jenq-Lang Wu, Chee-Fei Yung
On State-Feedback Controller Synthesis For A Class Of Second-Order Nonlinear Systems With Uncertainties, Jenq-Lang Wu, Chee-Fei Yung
Journal of Marine Science and Technology
This paper presents a constructive method to design stabilizing controllers for a class of second-order uncertain nonlinear systems whose input parts may vanish at the origin. A sufficient condition for the existence of stabilizing state feedback controllers is provided. Under the small control property, a formula is proposed for constructing continuous stabilizing feedback laws. In the case that the small control property does not hold, another formula for constructing continuous state feedback controllers, with small control magnitude near the origin, to achieve robust practical stability is presented.
Robust Control For Coaxial Two-Wheeled Electric Vehicle, Jia-Sheng Hu, Mi-Ching Tsai, Feng-Rung Hu, Yoichi Hori
Robust Control For Coaxial Two-Wheeled Electric Vehicle, Jia-Sheng Hu, Mi-Ching Tsai, Feng-Rung Hu, Yoichi Hori
Journal of Marine Science and Technology
This paper investigates robust motion pilot control of a coaxial two-wheeled electric vehicle (CTWEV) where the feedback control system is solely based on the angle of inclination without using any velocity information. H∞ control is employed to design a robust stabilizing controller. The proposed scheme involves an electronic differential steering algorithm to pilot the CTWEV via a joystick. Finally, evaluation examples and simulations are provided to demonstrate the effectiveness of the system
Identification Of Unmodeled Dynamics In Rotor Systems Using Mu-Synthesis Approach, Ryan J. Madden
Identification Of Unmodeled Dynamics In Rotor Systems Using Mu-Synthesis Approach, Ryan J. Madden
ETD Archive
It is well recognized that analytical models only approximate the true dynamics of analyzed rotating machines, due to the presence of components that are inherently difficult to model. Such models of rotating machines are driven by the best engineering knowledge and experience, and very often are updated based on experimental results. The problem of unmodeled or missing dynamics can be exacerbated in the presence of rotor structural damage such as a transverse crack on a shaft. This thesis will present an effective approach for model updating using advanced tools developed in robust control theory, specifically mu-synthesis. The methodology will be …
Modeling And Control Of Flow Problems By Adaptation-Based Linear Parameter Varying Models, Coşku Kasnakoğlu
Modeling And Control Of Flow Problems By Adaptation-Based Linear Parameter Varying Models, Coşku Kasnakoğlu
Turkish Journal of Electrical Engineering and Computer Sciences
In this paper a systematic modeling and control approach for flow problems is considered. A nonlinear Galerkin model is obtained from the partial differential equations (PDEs) describing the flow; and a Linear Parameter Varying (LPV) model is constructed to approximate the Galerkin model, where the parameter variation of the LPV model is controller by an adaptation mechanism. The LPV model is then treated as a surrogate on which the control design is carried out, where the parameter variations provide a range of uncertainty in which the control design must perform satisfactorily. It is shown that if certain conditions are met, …