Results 71 to 80 of about 157,302 (264)

Is Young's Modulus a Critical Coating Property Determining Fouling‐Release Performance of Marine Coatings?

Advanced Engineering Materials, EarlyView.
The release of foulers from protective marine coatings is determined by several interrelated material properties, including the strength of Young's modulus, the flexibility of chain segments, the surface free energy, and the magnitude of hydrodynamic stress.
Johann C. Schaal, Andreas Brinkmann, Andreas Hartwig   +2 more
wiley   +1 more source

Nonlinear Backstepping Control Design for Coupled Nonlinear Systems under External Disturbances

Complexity, 2019
A nonlinear backstepping control is proposed for the coupled normal form of nonlinear systems. The proposed method is designed by combining the sliding-mode control and backstepping control with a disturbance observer (DOB).
Wonhee Kim, Chang Mook Kang, Young Seop Son, Chung Choo Chung   +3 more
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

Advanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo, Shuo Qu, Shiming Gao, Xu Song   +3 more
wiley   +1 more source

Finite‐time stabilization control of nonlinear systems with full‐state constraints

IET Control Theory & Applications
This paper studies the finite time stabilization control (FTSC) problem of nonlinear systems with unknown functions and full‐state constraints (FSCs).
Jianwen Liu, Xiao Yan, Lin Zhang, Fujin Jia, Ni Yang   +4 more
doaj   +1 more source

Economic Machine-Learning-Based Predictive Control of Nonlinear Systems

Mathematics, 2019
In this work, a Lyapunov-based economic model predictive control (LEMPC) method is developed to address economic optimality and closed-loop stability of nonlinear systems using machine learning-based models to make predictions.
Zhe Wu, Panagiotis D. Christofides
doaj   +1 more source

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

Advanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh, Shashank Deepak Prabhu, Jannik Huber, Lioba Fischer, Gerhard Wolf, Nico Hempel, Peter Mayr   +6 more
wiley   +1 more source

An analytical adaptive optimal control approach without solving HJB equation for nonlinear systems with input constraints

IET Control Theory & Applications
This paper presents an analytical method to solve the optimal control problem for affine nonlinear systems with unknown drift dynamics. A new non‐quadratic cost function over an infinite horizon is presented that considers input constraints and includes ...
Zahra Tavanaei Sereshki, Heidar Ali Talebi, Farzaneh Abdollahi   +2 more
doaj   +1 more source

Integral Sliding Mode Strategy for Robust Consensus of Networked Higher Order Uncertain Non Linear Systems

IEEE Access, 2019
This paper focuses on an integral sliding mode technique-based consensus control protocol design for networked high order uncertain nonlinear systems.
Maryam Munir, Qudrat Khan, Feiqi Deng
doaj   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

Advanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart, Jonas Schmidt, Anastasiya Toenjes, Johanna Eisenträger   +3 more
wiley   +1 more source

An adaptive approximation‐free control for leader‐follower tracking of multi‐agent systems with unknown nonlinearity and disturbance

IET Control Theory & Applications
Due to variable and complex work environments, nonlinearities, uncertainty and disturbances are inevitable in multi‐agent systems. Approximation‐free control can address these issues without involving approximators, such as fuzzy logic systems and neural
Xiaoyan Hu, Prathyush P Menon, Christopher Edwards, Guilin Wen, Hanfeng Yin   +4 more
doaj   +1 more source