Results 61 to 70 of about 68,712 (298)
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Adaptive control of uncertain nonholonomic systems in finite time [PDF]
, 2009 summary:In this paper, the finite-time stabilization problem of chained form systems with parametric uncertainties is investigated. A novel switching control strategy is proposed for adaptive finite-time control design with the help of Lyapunov-based ...
Zhang, Guoshan +2 more
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On the Finite Time Stabilization Via Robust Control for Uncertain Disturbed Systems
International Journal of Applied Mathematics and Computer Science, 2023 This paper deals with the finite-time stabilization problem for a class of uncertain disturbed systems using linear robust control. The proposed algorithm is designed to provide the robustness of a linear feedback control scheme such that system ...
Ordaz Patricio +3 more
doaj +1 more source
Finite‐Time Stability and Stabilization of Nonlinear Quadratic Systems with Jumps [PDF]
Mathematical Problems in Engineering, 2014 This paper investigates the problems of finite‐time stability and finite‐time stabilization for nonlinear quadratic systems with jumps. The jump time sequences here are assumed to satisfy some given constraints. Based on Lyapunov function and a particular presentation of the quadratic terms, sufficient conditions for finite‐time stability and finite ...
openaire +1 more source
Finite Time Stability of Stochastic Hybrid Systems [PDF]
Abstract and Applied Analysis, 2014 This paper considers the finite time stability of stochastic hybrid systems, which has both Markovian switching and impulsive effect. First, the concept of finite time stability is extended to stochastic hybrid systems. Then, by using common Lyapunov function and multiple Lyapunov functions theory, two sufficient conditions for finite time stability of
Ying Yang, Guopei Chen
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Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Finite‐time attitude stabilization of rigid spacecrafts based on control Lyapunov functions
IET Control Theory & Applications, 2022 In this paper, the control Lyapunov function (CLF) approach is adopted to investigate the finite‐time attitude control of rigid spacecraft subject to parameter uncertainty and external disturbance.
Yu‐Yao Wu, Ying Zhang, Ai‐Guo Wu
doaj +1 more source
Mathematics, 2021 In this study, a novel fast terminal sliding mode control technique based on the disturbance observer is recommended for the stabilization of underactuated robotic systems.
Thaned Rojsiraphisal +5 more
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Evaluating Energy Absorption Performance of Filled Lattice Structures
Advanced Engineering Materials, EarlyView.Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney +2 more
wiley +1 more source
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 +3 more
wiley +1 more source