Results 71 to 80 of about 106,319 (304)

Direct observation of ion-induced self-organization and ripple propagation processes in atomistic simulations

Materials Research Letters, 2020
Patterns on sand generated by blowing winds are one of the most commonly seen phenomena driven by such a self-organization process, as has been observed at the nanoscale after ion irradiation. The origins of this effect have been under debate for decades.
A. Lopez-Cazalilla, F. Djurabekova, A. Ilinov, C. Fridlund, K. Nordlund   +4 more
doaj   +1 more source

Torque analysis of a permanent magnet synchronous motor using flux densities in air gap

AIP Advances, 2023
Permanent magnet synchronous motors (PMSMs) having high power density and high efficiency are rigorously researched in various premium applications. Among PMSMs, many studies have been conducted on interior permanent magnet synchronous motors (IPMSMs) to
Sangjin Lee, Changhwan Kim, Yongha Choo, Gyeonghwan Yun, Cheewoo Lee   +4 more
doaj   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khalighian, Anahita Emami   +3 more
wiley   +1 more source

Analysis and Suppression of Thrust Ripple in a Permanent Magnet Linear Synchronous Motor—A Review

Energies
Nowadays, Permanent Magnet Synchronous Linear Motors (PMLSMs) are widely applied as direct drive mechanisms in the industrial manufacturing sector, which can fulfill the requirements for high precision and high production rates.
Siwen Chen, Yang Liu, Qian Zhang, Jiubin Tan   +3 more
doaj   +1 more source

Force Profiles of a Linear Switched Reluctance Motor Having Special Pole Face Shapes

Advances in Electrical and Computer Engineering, 2010
In this paper, the results of a finite element analysis are carried out on an new stator geometry of a three phase longitudinal flux Linear Switched Reluctance Motor (LSRM). In the new geometry, pole shoes are affixed to the stator poles.
CHADRESEKAR, V., ARUMUGAM, R., LENIN, N. C.   +2 more
doaj   +1 more source

Design and Optimization of a Surface-Mounted Permanent-Magnet Linear Synchronous Motor with Maxwell ANSYS

Al-Khawarizmi Engineering Journal, 2019
Linear motor offers several features in many applications that require linear motion. Nevertheless, the presence of cogging force can deteriorate the thrust of a permanent magnet linear motor.
Jamal Abdul-Kareem Mohammed, Farag Mahel Mohammed, Raghda'a Ahmed A. Ali   +2 more
doaj   +1 more source

Height Fluctuations and Intermittency of $V_2 O_5$ Films by Atomic Force Microscopy [PDF]

, 2003
The spatial scaling law and intermittency of the $V_2 O_5$ surface roughness by atomic force microscopy has been investigated. The intermittency of the height fluctuations has been checked by two different methods, first, by measuring scaling exponent of
, A Iraji zad, Abed-pour N, Aue J, Barabasi A-L, Bershadskii A, Bradley R M, Bunde A, Cuerno R, Cuerno R, Drotar J T, Family F, G Kavei, Halpin-Healy T, Iraji zad A, Krug J, Krug J, Lauritsen K B, M Reza Rahimi Tabar, Marsilli M, Meakin P, S M Vaez Allaei, Svitasheva S N, Yang H-N   +23 more
core   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

The Design and Optimization of an Interior, Permanent Magnet Synchronous Machine Applied in an Electric Traction Vehicle Requiring a Low Torque Ripple

Applied Sciences, 2019
An internal permanent magnet synchronous machine (IPMSM) was designed for heavy-load traction vehicles applied in port transportation. Based on finite element analysis (FEA), the rotor iron core topology was optimized with the most attention paid to ...
Gan Zhang, Wenfei Yu, Wei Hua, Ruiwu Cao, Hongbo Qiu, Aili Guo   +5 more
doaj   +1 more source

Numerical and experimental verification of a theoretical model of ripple formation in ice growth under supercooled water film flow

, 2011
Little is known about morphological instability of a solidification front during the crystal growth of a thin film of flowing supercooled liquid with a free surface: for example, the ring-like ripples on the surface of icicles.
Caroli B, H Tsuji, K Ueno, Landau L D, M Farzaneh, Maeno N, Makkonen L, Matsuda S, S Yamaguchi, Schewe P, Terada T   +10 more
core   +1 more source