Results 1 to 10 of about 556,588 (202)

A Popov Criterion for Networked Systems [PDF]

open access: yesSystems and Control Letters, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ulf Jönsson, Hisaya Fujioka
exaly   +4 more sources

Circle and Popov Criterion for Output Feedback Stabilization of Uncertain Systems

open access: yesNonlinear Analysis, 2006
In this paper, we address the problem of output feedback stabilization for a class of uncertain dynamical systems. An asymptotically stabilizing controller is proposed under the assumption that the nominal system is absolutely stable.
A. Benabdallah, M. A. Hammami
doaj   +3 more sources

Efficiency of Applying the Nyquist and V.M. Popov Criteria for Stability Analysis of Linearized Automatic Control Systems in Electromechanics and Power Engineering

open access: yesEnergies, 2023
It is well known that all real automatic control systems (ACS) are significantly nonlinear systems. Along with this, in engineering analysis the simplifications of their mathematic description, that is, linearization, are inevitable.
Vladimir Kodkin   +2 more
doaj   +1 more source

Adhesive Boundary Element Method Using Virtual Crack Closure Technique

open access: yesFrontiers in Mechanical Engineering, 2021
In this study, a new adhesive contact model is built upon a boundary element method (BEM) model developed by Pohrt and Popov (2015). The strain energy release rate (SERR) on the edge of the bonding interface is evaluated using Virtual Crack Closure ...
Yang Xu, Rongxin Zhou
doaj   +1 more source

DESCRIPTION OF A NONLINEAR LINK IN A CONTROL SYSTEM WITH DISTRIBUTED PARAMETERS

open access: yesСовременная наука и инновации, 2022
The problem of adequate representation of models of real objects in the form of systems of linear equations is shown. As a solution, a method of analysis and synthesis of this class of systems with a single nonlinear element is proposed. At the same time,
I. V. Kaliberda, A. B. Chernyshev
doaj   +1 more source

Actuator Saturation Compensation for Fast Tool Servo Systems With Time Delays

open access: yesIEEE Access, 2021
Fast tool servo systems with high precision and high speed pose significant challenges to servo control at the nano-scale. The saturation of the control actions, time delays and system uncertainties further complicate the control challenges.
Pengbo Liu   +3 more
doaj   +1 more source

Longitudinal Absolute Stability of a BWB Aircraft-Pilot System with Saturated Actuator Model [PDF]

open access: yesINCAS Bulletin, 2013
This paper deals with the analysis of the P(ilot) I(n-the-Loop) O(scillations) of the second category (with rate and position liming in the closed loop pilot-vehicle system), caused by the dynamic coupling between the human pilot and the aircraft.
Claudia Alice STATE
doaj   +1 more source

A generalization of the Popov criterion [PDF]

open access: yesJournal of the Franklin Institute, 1968
Abstract A criterion for the stability of control systems which contain an arbitrary finite number of memoryless nonlinearities is considered. The criterion is such that the degree of stability may be specified, and such that for the case when the absolute stability of a control system having one memoryless nonlinearity is considered, it reduces to ...
Moore, J. B., Anderson, B. D. O.
openaire   +2 more sources

Absolute stability for the lateral-directional BWB model with rate limited actuator [PDF]

open access: yesINCAS Bulletin, 2012
In this paper the authors present a study regarding the interaction between the human pilot and the aircraft which may result in a dangerous phenomenon called Pilot Induced Oscillations (PIO), in the context of the lateral directional motion.
Ionel IORGA, Claudia STATE
doaj   +1 more source

Stability Analysis of Systems with Fuzzy PI Controllers Applied to Electric Drives

open access: yesMathematics, 2021
This paper analyzes the stability of fuzzy control systems with applications for electric drives. Ensuring the stability of these systems is a necessity in practice.
Constantin Voloşencu
doaj   +1 more source

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