Sfoglia per Autore "Koumboulis, F. N."
Items 21-40 di 40
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On the evaluation of the MD passive WDF discretization method for a flow through cylinder
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (2000)In this paper a complete algorithm is developed to evaluate the multidimensional (MD) wave digital filter (WDF) method for the numerical integration of nonlinear (NL) partial differential equations (PDEs), and particularly ... -
Output feedback decoupling of linear systems with nonlinear uncertain structure
Koumboulis, F. N.; Skarpetis, M. G. (1996)The problem of input-output decoupling for linear systems with nonlinear uncertain structure, via an independent of the uncertainties static output feedback law, is solved. The necessary and sufficient conditions for the ... -
P-D feedback for decoupling and pole assignment of singular systems
Koumboulis, F. N.; Mertzios, B. G. (1998)The problem of reducing a multi input-multi output system to many single input-single output systems, namely the problem of input-output decoupling, is studied for the case of singular systems i.e., for systems described ... -
Partial model matching via static feedback (The multivariable case)
Koumboulis, F. N.; Kucera, V. (1999)The problem of partial model matching is studied for the case of multi-input/multi-output linear time-invariant systems. Using a regular static state feedback law, the necessary and sufficient conditions for the problem ... -
Pitch and flight path control with simultaneous forward gust rejection
Skarpetis, M. G.; Koumboulis, F. N.; Koussiouris, T. G. (1999)The problem of rejecting atmospheric disturbances with simultaneous input-output decoupling of the pitch angle and the flight path angle of an aircraft, is studied. The problem is proven to be solvable for almost all flight ... -
Position control for constrained Robots
Koumboulis, F. N. (1999)The problem of position control, for robot manipulators constrained to carry a load, is studied. Using a nonlinear P-D feedback law the design requirements of command matching and command following are proved to be always ... -
Robust discretization algorithms for the numerical intergration of nonlinear PDEs with application to a generalized capacitor
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (1998)Numerical integration of nonlinear (NL) partial differential equations (PDEs) is studied via approximating the original continuous-domain physical system by a discrete multidimensional (MD) and passive system, using ... -
Robust disturbance decoupling with simultaneous exact model matching via static measurement output feedback
Koumboulis, F. N.; Skarpetis, M. G. (1999)The problem of robust exact model matching with simultaneous robust disturbance decoupling for linear systems with nonlinear uncertain structure (NLUS) and with measurable and non measurable disturbances is solved via an ... -
Robust disturbance rejection for left invertible systems with measurable and nonmeasurable disturbances
Koumboulis, F. N.; Skarpetis, M. G. (1996)The problem of robust disturbance rejection for left invertible linear systems, with nonlinear uncertain structure and with measurable and nonmeasurable disturbances, is studied and solved for the first time. The necessary ... -
Robust disturbance rejection for left-invertible linear systems with nonlinear-uncertain structure
Koumboulis, F. N.; Skarpetis, M. G. (1999)The problem of robust disturbance rejection for left invertible linear systems, with nonlinear uncertain structure and with measurable and nonmeasurable disturbances, is solved via an independent from the uncertainties ... -
Robust disturbance rejection with simultaneous robust input-output decoupling
Koumboulis, F. N.; Skarpetis, M. G. (1997)The problem of robust disturbance rejection with simultaneous robust input-output decoupling of linear systems with nonlinear uncertain structure is solved. The controller is static and independent of the uncertainties. ... -
Robust exact model matching via P-D feedback with application to DC servo motor
Koumboulis, F. N.; Skarpetis, M. G. (1996)The problem of exact model matching for single input single output linear systems with nonlinear uncertain structure, via an independent of the uncertainties P-D state and output feedback, is studied. The necessary and ... -
Robust input-output decoupling via static measurement output feedback
Koumboulis, F. N.; Skarpetis, M. G. (1999)In this paper the problem of robust input-output decoupling for linear systems with nonlinear uncertain structure (NLUS), via an independent from the uncertainties static measurement output feedback law, is studied. The ... -
Robust Morgan's problem
Koumboulis, F. N.; Koussiouris, T. G.; Skarpetis, M. G. (2004)The robust Morgan's problem, via restricted static state feedback and a constant precompensator, is studied for nonsquare linear time-invariant systems with nonlinear uncertain structure. Sufficient solvability conditions ... -
Robust regional stabilisation of an electropneumatic actuator
Koumboulis, F. N.; Skarpetis, M. G.; Mertzios, B. G. (1998)Sufficient conditions are derived to solve the problem of robust regional stabilisation of linear systems with nonlinear, uncertain structure and uncertain order. The problem of increasing the speed and accuracy of uncertain ... -
Robust triangular decoupling via output feedback
Koumboulis, F. N.; Skarpetis, M. G. (2000)The problem of input-output triangular decoupling for linear systems with nonlinear uncertain structure, via an independent of the uncertainties static output feedback law, is solved. The necessary and sufficient conditions ... -
Robust triangular decoupling with application to 4WS cars
Koumboulis, F. N.; Skarpetis, M. G. (2000)The necessary and sufficient conditions for the problem of robust triangular decoupling (RTD) are established for the case of a linear time-invariant system with a nonlinear uncertain structure. The general analytic ... -
Robust triangular decoupling with simultaneous robust disturbance rejection
Koumboulis, F. N.; Skarpetis, M. G. (2001)For the case of a linear time invariant system with nonlinear uncertain structure the problem of robust triangular decoupling with simultaneous robust disturbance rejection (RTDRDR) is studied. The necessary and sufficient ... -
Rotary gust rejection for helicopters
Koumboulis, F. N.; Skarpetis, M. G.; Griparis, M. K. (1998)For the case of helicopters in straight horizontal flight, the effects of a rotary gust to the forward velocity and the downward velocity of the helicopter are rejected. The rotor commands appear to be independent, i.e. ... -
Static controllers for magnetic suspension and balance systems
Koumboulis, F. N.; Skarpetis, M. G. (1996)For a test aircraft in a wind tunnel with magnetic suspension and balance systems, a decoupling control configuration is proposed. Using the input-output decoupling technique the flight variables are controlled independently ...