Results 41 to 50 of about 18,172 (251)

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Global Multivariable Control of Permanent Magnet Synchronous Motor for Mechanical Elastic Energy Storage System under Multiclass Nonharmonic External Disturbances

Abstract and Applied Analysis, 2014
For the technology of mechanical elastic energy storage utilizing spiral torsion springs as the energy storage media presented previously, a global multivariable control algorithm based on nonlinear internal model principle under multiclass external ...
Yang Yu, Zengqiang Mi, Yikun Xu, Tong Zhao   +3 more
doaj   +1 more source

Frequency doubling by active in vivo motility of mechanosensory neurons in the mosquito ear [PDF]

Royal Society Open Science, 2018
Across vertebrate and invertebrate species, nonlinear active mechanisms are employed to increase the sensitivity and acuity of hearing. In mosquitoes, the antennal hearing organs are known to use active force feedback to enhance auditory acuity to female
James F. C. Windmill, Joseph C. Jackson, Victoria G. Pook, Daniel Robert   +3 more
doaj   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

A robust control strategy to improve transient stability for AC-DC interconnected power system with wind farms

CSEE Journal of Power and Energy Systems, 2019
In view of the variable parameters that affect the transient stability of electromagnetic torque and mechanical torque balance in AC-DC system, and the uncertainty of wind power in large-scale interconnection of wind farm.
Qian Hui, Jinlu Yang, Xia Yang, Zhe Chen, Yan Li, Yun Teng   +5 more
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane, Salama Makni, Mourad Kchaou, Ahmed El Hajjaji   +3 more
wiley   +1 more source

Time-Varying Lyapunov Functions for Tracking Control of Mechanical Systems With and Without Frictions

IEEE Access, 2020
In this paper, the tracking control problem is investigated for time-varying nonlinear mechanical systems with and without frictions. A reduced-order dynamic and a traditional time-invariant Lyapunov design method is utilized for the case without ...
Weizheng Ren, Bin Zhang, Haiyuan Li, Lutao Yan   +3 more
doaj   +1 more source

Operation of elastic coupling with nonlinear mechanical feedback in the motor starting mode

Annals Constanta Maritime University, 2018
Modeling the work of elastic couplings with nonlinear mechanical coupling linkage in the mode of transmission starting from a technical system whose harmonic disturbance has been carried out. Estimation of efficiency of elastic couplings application for solving problems of oscillatory processes optimization has been done. Recommendations concerning the
Igor Sydorenko, Victor Kurgan, Anatoly Konoplev   +2 more
openaire   +2 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

An Innovative Hybrid Scheme for Improving the Stability of Nonlinear Control Systems

Journal of Mathematics
In this research, a hybrid method for designing stabilizing feedback control for nonlinear systems is provided. First of all, according to the hyperbolic functions, the nonlinear control systems has been estimated.
F. Moghadam, H. Ahsani Tehrani, M. H. Noori Skandari   +2 more
doaj   +1 more source