Results 21 to 30 of about 427,822 (290)
Observability of nonlinear systems
Information and Control, 1973 The purpose of this paper is to investigate the problem of observability of nonlinear systems. Two sufficient conditions of global observability of nonlinear systems are presented: (1) the ratio condition which is the generalization of Fujisawa and Kuh's (1971) ratio condition of circuit theory, (2) the strongly positive semidefinite condition.
Shauying R. Kou +2 more
openaire +2 more sources
Lump Solutions and Resonance Stripe Solitons to the (2+1)-Dimensional Sawada-Kotera Equation
Advances in Mathematical Physics, 2017 Based on the symbolic computation, a class of lump solutions to the (2+1)-dimensional Sawada-Kotera (2DSK) equation is obtained through making use of its Hirota bilinear form and one positive quadratic function.
Xian Li, Yao Wang, Meidan Chen, Biao Li
doaj +1 more source
Fault-tolerant control for nonlinear systems with a dead zone: Reinforcement learning approach
Mathematical Biosciences and Engineering, 2023 This paper focuses on the adaptive reinforcement learning-based optimal control problem for standard nonstrict-feedback nonlinear systems with the actuator fault and an unknown dead zone.
Zichen Wang, Xin Wang
doaj +1 more source
Controllability of nonlinear systems
Journal of Differential Equations, 1972 Discussion of the controllability of nonlinear systems described by the equation dx/dt - F(x,u). Concepts formulated by Chow (1939) and Lobry (1970) are applied to establish criteria for F and its derivatives to obtain qualitative information on sets which can be obtained from x which denotes a variable of state in an arbitrary, real, analytical ...
Velimir Jurdjevic, Héctor J. Sussmann
openaire +2 more sources
A novel event-triggered constrained control for nonlinear discrete-time systems
AIMS Mathematics, 2023 In this paper, a novel event-triggered optimal control method is developed for nonlinear discrete-time systems with constrained inputs. First, a non-quadratic utility function is constructed to overcome the challenge caused by saturating actuators ...
Yuanyuan Cheng, Yuan Li
doaj +1 more source
Manufacturing Review, 2023 In this paper, a new algorithm developing to solve optimization problems with many nonlinear factors in ultra-precision machining by magnetic liquid mixture.
Duc Le Anh +2 more
doaj +1 more source
Discussion: “A Résumé of the Development and Literature of Nonlinear Control-System Theory” (Higgins, T. J., 1957, Trans. ASME, 79, pp. 445–449) [PDF]
, 1957 James D. Horgan
+12 more sources
LPV-Based Controller Design of a Floating Piston Pneumatic Actuator
Actuators, 2020 The paper presents the modeling and control design of a floating piston pneumatic gearbox actuator using a grid-based Linear Parameter Varying approach. First, the nonlinear model of the pneumatic actuator is presented, then it is transformed into a 6th ...
Ádám Szabó +3 more
doaj +1 more source
A Nonlinear Finite-Time Robust Differential Game Guidance Law
Sensors, 2022 In this paper, a robust differential game guidance law is proposed for the nonlinear zero-sum system with unknown dynamics and external disturbances. First, the continuous-time nonlinear zero-sum differential game problem is transformed into solving the ...
Axing Xi, Yuanli Cai
doaj +1 more source
Supression of mechanical oscillations in a nonlinear systems with restriction
Lietuvos Matematikos Rinkinys, 2023 The application of the dynamical dampers in the mechanical systems, when the sources of stimulation are impossible to abolish, is one of the ways to fight against the harmful vibrations.
Genovaitė Zaksienė
doaj +1 more source