Results 61 to 70 of about 4,540,131 (238)

From Nonlinear to Hamiltonian via Feedback [PDF]

, 2002
Mechanical control systems are an especially interesting and important class of nonlinear control systems. They possess a rich mathematical structure and yet, physical considerations reveal extremely important for the solution of a large class of control
Tabuada, Paulo, Pappas, George J
core  

Mechanistic Origins of Chemo‐Mechanical Instability and Failure in Solid‐State Lithium‐Sulfur Electrodes

Advanced Functional Materials, EarlyView.
Conversion‐induced sulfur expansion generates strong mechanical constraints and localized stresses within solid‐state Li‐S cathodes. Heterogeneous solid‐electrolyte confinement creates tensile strain‐energy hotspots that govern particle cracking. Larger sulfur particles accelerate fracture, while higher porosity relaxes constraint and delays damage ...
Arpan K. Sharma, Ahmad Ahmad, Bairav S. Vishnugopi, Partha P. Mukherjee   +3 more
wiley   +1 more source

Almost Global Stabilization of Curvature-Nullifiable Mechanical Systems via Pure Mechanical Feedback

Applied Sciences
Mechanical control systems structure, derived from Euler–Lagrange dynamics, is directly tied to physically meaningful coordinates such as joint angles, positions, and velocities. This work investigates when a mechanical control system can be transformed,
Marta Drążkowska, Marcin Nowicki
doaj   +1 more source

Modelling and Simulation of LQR and LFSV Controllers in the Magnetic Levitation System (MLS)

Prospectiva, 2016
In this article a control analysis in state variables is presented, applied to the nonlinear Magnetic Levitation system (MLS), which consists in keeping objects suspended in the air without any mechanical contact through the interaction of magnetic force.
Alvaro Romero Acero, Julian Andrés Orozco Quiceno, Jovani Alberto Jiménez Bulies   +2 more
doaj   +1 more source

A QFT robust controller as a remedy for TRMS

Aviation, 2020
Control of a Twin Rotor Multi-input Multi-output System (TRMS) is not a simple work. Because it has complex nonlinear dynamics, cross-coupling, uncertainties, and instability.
Mostafa Honari-Torshizi, Hossein Rahmani, Hossein Moeinkhah, Mohammad Reza Gharib, Javad Jahanpour   +4 more
doaj   +1 more source

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

Advanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri, Asif Abdullah Khan, Md Fahim Al Fattah, Mahmoud Almadhoun, Shamaila Shahzadi, Aixi Pan, Md Soyaeb Hasan, Henry Wu, Arash Aghigh, Bhawna Bhawna, François Légaré, Vivek Maheshwari, Dayan Ban   +12 more
wiley   +1 more source

Estimation and compensation for Lipschitz nonlinear discrete-time systems subjected to unknown measurement delays [PDF]

, 2015
Unknown measurement delays usually degrade system performance, and even damage the system under output feedback control, which motivates us to develop an effective method to attenuate or offset the adverse effect from the measurement delays.
Gao, Zhiwei
core   +1 more source

Programming Neuromorphic Plasticity Through Ionic and Electronic Coupling in Organic Electrochemical Transistors

Advanced Functional Materials, EarlyView.
Neuromorphic plasticity in OECTs is governed by the post‐stimulus evolution of coupled ionic and electronic states. Semiconductor chemistry and morphology, electrolyte composition and interfaces, and device architecture regulate ion injection, transport, confinement, and release, shifting responses from rapidly relaxing STP to metastable memory and ...
Inho Lee, Hyoik Jang, Ji Hwan Kim, Jonghyun Won, Namhee Kim, Wonseok Shin, Giwon Lee, Eunho Lee, Daegun Kim, Sungjun Park   +9 more
wiley   +1 more source

Robust control and state estimation in multiphysics transducer with dual sensor-actuator use

Academia Engineering
This research delves into advancements in electro-magneto-mechanical systems, emphasizing the dual functionality of the system as both a sensor and an actuator while addressing nonlinearity with feedback linearization.
Georgios Tsakyridis, Nikolaos I. Xiros, George Litsardakis   +2 more
doaj   +1 more source

Observer-based feedback linearization control of multi-input multi-output nonlinear system and application to double rotor system

Advances in Mechanical Engineering, 2019
This study first proposes an observer-based feedback linearization control of nonlinear multi-input multi-output systems with the input-to-state stability and almost disturbance decoupling characteristics, and summarizes an efficient algorithm for ...
Pen-Feng Chang, Chung-Cheng Chen, Jin-Rong Chang   +2 more
doaj   +1 more source