Results 61 to 70 of about 5,212 (262)

Reduction of force ripples in linear motors

, 2014
The influence ofhigher field harmonics of permanent magnets, and asymmetry of flux linkages according to the phase shift on the value of force ripples in linear motors is studied. The solution to this problem is based on a higher field harmonics analysis in the active zone of a two-phase permanent-magnet cylindrical linear motor.
Kharchyshyn, Bohdan, Khai, Mykhailo, Moroz, Volodymyr   +2 more
openaire   +1 more source

Beyond Visual Scoring: Computational CT‐analysis for HRCT based quantification of Interstitial Lung Disease in Inflammatory Rheumatic Disease

Arthritis Care &Research, Accepted Article.
Interstitial lung disease (IRD‐ILD) is a significant cause of morbidity and mortality in patients with inflammatory rheumatic disorders (IRD). High‐resolution computed tomography (HRCT) is widely considered the gold standard for the non‐invasive assessment of ILD; however, its interpretation is constrained by substantial inter‐observer variability and ...
Alexander Pfeil, Tobias Hoffmann, Ulf Teichgräber, Diane Renz, Denise Beckmann, Gunter Wolf, Nicole Schadewaldt, Bianca Lassen‐Schmidt   +7 more
wiley   +1 more source

Thrust ripple reduction based on auxiliary-slot permanent magnet synchronous linear motors

Advances in Mechanical Engineering
Permanent magnet synchronous linear motor (PMSLM) has the advantages of simple mechanical structure and high thrust density. However, the simultaneous existence of end effect and cogging force aggravates the thrust ripple and affects the output ...
Cong Huang, Huachun Wu, Yuzhe Xu, Bowen Sun, Zijie Dai   +4 more
doaj   +1 more source

Dual Flattening of Radial Force and Torque Waveforms in Switched Reluctance Motors

IEEE Open Journal of Industry Applications
This article presents a novel current-waveform shaping method for simultaneously eliminating radial-force fluctuation and torque ripple in switched reluctance motors.
Fares S. El-Faouri, Shou Qiu, Yifei Cai, Chenyang Lyu, Kyohei Kiyota, Wejdan Abu Elhaija, Akira Chiba   +6 more
doaj   +1 more source

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

Advanced 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, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Electromagnetic Forces and Vibrations Under Stator and Rotor Reference Frames in Permanent Magnet Synchronous Machines

IET Electric Power Applications
The electromagnetic force plays a significant role in contributing to torque ripple and electromagnetic vibration in permanent magnet synchronous machines (PMSMs), thereby impacting the noise, vibration, and harshness (NVH) performance.
Lei Yao, Yunchong Wang, Rui‐Zhen Cui, Xue‐Fei Qin, Dan Shi, Jian‐Xin Shen   +5 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

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, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Suppressing the Thrust Ripple of the Consequent-Pole Permanent Magnet Linear Synchronous Motor by Two-Step Design

IEEE Access, 2018
This paper investigates the thrust ripple of a consequent-pole permanent magnet linear synchronous motor (CP-PMLSM). The components of the thrust ripple are analyzed through the comparison of the thrust waves' constituent frequencies.
Xuzhen Huang, Jing Liang, Bo Zhou, Chengming Zhang, Liyi Li, David Gerada   +5 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

Advanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source