Results 131 to 140 of about 128,037 (313)

Nonlinear System Identification for Mixed Signal Processing | Signal Processing and Speech Communication Laboratory

, 2004
The thesis considers methods for the identification of weakly nonlinear systems, met in mixed analog-digital systems for data-transmission. Depending on the available knowledge about the system to be identified different algorithms and model structures ...
Koeppl, H.
core  

Online Identification of Aircraft Model Parameters Based on Recursive Least Squares Method

Kongzhi Yu Xinxi Jishu, 2019
In order to realize online update of the flight control system, online assessment of flight capability and online detection of an aircraft fault, the online identification method of unknown parameters in the aircraft dynamics model was studied.
JIANG Yongming, WANG Changqing, XU Cheng
doaj  

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Data-driven adaptive model-based predictive control with application in wastewater systems

, 2011
This study is concerned with the development of a new data-driven adaptive model-based predictive controller (MBPC) with input constraints. The proposed methods employ subspace identification technique and a singular value decomposition (SVD)-based ...
R. Katebi, N.A. Wahab, Katebi, M.R., Wahab, N.A., M.F. Rahmat, Rahmat, M.F., J. Balderud, Balderud, J.   +7 more
core   +1 more source

IDENTIFICATION OF NONLINEAR MODEL PARAMETERS FOR RAPID THERMAL PROCESSES [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2014
A problem of parameters identification is considered for a nonlinear model of rapid thermal processes. A hybrid approach is proposed for parameter estimation combining both analytical solution and numerical optimization.
A. A. Kapitonov, S. V. Aranovskiy
doaj  

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Particle filtering based identification for autonomous nonlinear ODE models

, 2015
This paper presents a new black-box algorithm for identification of a nonlinear autonomous system in stable periodic motion. The particle filtering based algorithm models the signal as the output of a continuous-time second order ordinary differential ...
Wigren, Torbjörn,, Nordh, Jerker, Bernhardsson, Bo, B. Schön, Thomas, Bo Bernhardsson, Wigren, Torbjörn, Torbjörn Wigren, Jerker Nordh, Schön, Thomas B.,, Thomas B. Schön   +9 more
core   +1 more source

Autoencoder with Ordered Variance for Nonlinear Model Identification

CoRR
This paper presents a novel autoencoder with ordered variance (AEO) in which the loss function is modified with a variance regularization term to enforce order in the latent space. Further, the autoencoder is modified using ResNets, which results in a ResNet AEO (RAEO).
Midhun T. Augustine, Parag Patil, Mani Bhushan, Sharad Bhartiya   +3 more
openaire   +2 more sources

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Influence of Si Content and Milling Duration on the Microstructure and Mechanical–Tribological Properties of AlCoCrFeNiSi High‐Entropy Alloys

Advanced Engineering Materials, EarlyView.
Si‐doped AlCoCrFeNi high‐entropy alloys are synthesized by mechanical alloying to reveal the effect of Si content and milling time on phase evolution, microstructural refinement, and tribological behavior. A transition from FCC to BCC structure, significant grain refinement, and enhanced hardness and wear resistance are achieved, with the 4 at% Si ...
Mustafa Okumuş, Mehmet Emin Demir, Sercan Özpınar   +2 more
wiley   +1 more source