Optimal parameter selection for nonlinear multistage systems with time-delays

Multistage Modified Sinc Method for Solving Nonlinear Dynamical Systems

The sinc method is known as an ecient numerical method for solving ordinary or par-tial dierential equations but the system of dierential equations has not been solved by this method which is the focus of this paper. We have shown that the proposed version of sinc is able to solve sti system while Runge-kutta method can not able to solve. Moreover, Due to the great attention to mathematical mod...

ADAPTIVE FUZZY TRACKING CONTROL FOR A CLASS OF NONLINEAR SYSTEMS WITH UNKNOWN DISTRIBUTED TIME-VARYING DELAYS AND UNKNOWN CONTROL DIRECTIONS

In this paper, an adaptive fuzzy control scheme is proposed for a class of perturbed strict-feedback nonlinear systems with unknown discrete and distributed time-varying delays, and the proposed design method does not require a priori knowledge of the signs of the control gains.Based on the backstepping technique, the adaptive fuzzy controller is constructed. The main contributions of the paper...

Exponential Stability of Linear Systems with Multiple Time Delays

In this paper, a class of linear systems with multiple time delays is studied. The problem of exponential stability of time-delay systems has been investigated by using Lyapunov functional method. We will convert the system of multiple time delays into a single time delay system and show that if the old system is stable then the new one is so. Then we investigate the stability of converted new ...

Design of a Model Based Compensator for MIMO Systems with Time Delays and Constrained Inputs

Observability and observers for nonlinear systems with time delays

In modern control theory, it has been a common practice to use ordinary differential equations to model dynamic systems. However, most of real systems have delays associated -normally introduced by natural response time (of sensors, actuators, etc, . . .) , and transport (of information, mass, etc, . . .) phenomenaand a more accurate model would require the use of functional-differential equati...