Results 41 to 50 of about 14,335,537 (251)

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao   +2 more
wiley   +1 more source

Optimal Design of C-Type Filter in Harmonics Polluted Distribution Systems

open access: yesEnergies, 2022
This paper aims to find the optimal size of parameters of a C-type filter in a non-sinusoidal system using a new optimization method called the Archimedes optimization algorithm (AOA).
Rohollah Tamaskani   +2 more
doaj   +1 more source

Practical Loss Estimation of Power Inductors Under Non-Sinusoidal Excitation Based on Sinusoidal Measurements

open access: yesIEEE Access
Accurate loss estimation of power inductors under non-sinusoidal excitation is essential for the design of high-frequency power electronic systems. While sinusoidal-excitation-based characterization provides a systematic and physically interpretable ...
Yuki Sato   +3 more
doaj   +1 more source

An Efficient Control of a Series Connected Two-Synchronous Motor 5-Phase with Non Sinusoidal EMF Supplied by a Single 5-leg VSI: Experimental and Theoretical Investigations [PDF]

open access: yes, 2012
Lien vers la version finale éditeur This paper proposes the control scheme of an original drive which is made up of two 5-phase permanent magnet synchronous machines (PMSM) connected in series.
CHARPENTIER, Jean-Frederic   +3 more
core   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

An optimal transmission line power control under non‐sinusoidal conditions using static synchronous series compensator

open access: yesIET Generation, Transmission & Distribution, 2021
In view of the growing load demand in developing countries, overloading in existing transmission lines is a major concern. In addition to the voltage drop due to overloading, the proliferation of non‐linear loads in recent years distort the shape of ...
Shruti Nema, Sincy George
doaj   +1 more source

On-line analysis of power quality problems in non-sinusoidal/non-linear distribution systems

open access: yesAin Shams Engineering Journal, 2023
The paper presents the definitions of powers and currents associated with systems characterized by non-sinusoidal sources and/or non-linear loads in the time domain.
Hamdy S.K. El-Goharey, Wael M. Mamdouh
doaj   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser   +3 more
wiley   +1 more source

Performance Evaluation of Multifunctional Energy Metering IC under Sinusoidal and Non-Sinusoidal Conditions

open access: yes, 2006
Low-cost handheld instruments performing a large variety of electrical measurements are recently appeared on the market. Their diffusion is mainly due to the availability of integrated circuits that carry out many measurement functions, thus simplifying ...
PIVELLO, ELISA   +3 more
core   +1 more source

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