Results 31 to 40 of about 3,008 (263)

Analytical modeling method for electromagnetic linear actuators considering end effects [PDF]

Journal of Hebei University of Science and Technology
In order to solve the problem of magnetic field distortion caused by the high magnetic permeability of the end cover of moving coil electromagnetic linear actuator, which leads to fluctuations in the thrust of actuator and the inaccuracy of the ...
Yuxin LI, Bo LI, Wenqing GE, Jiayu LU, Jiewei CHEN   +4 more
doaj   +1 more source

Dynamic characteristics of a bitable linear actuator with moving permanent magnet [PDF]

Serbian Journal of Electrical Engineering, 2004
The dynamic characteristics of an ax symmetrical linear actuator with axially magnetized moving permanent magnet are obtained using combined field and circuit approach.
Yatchev Ivan, Hinov Krastio, Gueorgiev Vultchan   +2 more
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

Advanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding, Zhong Zhang, Zeang Zhao, Shengyu Duan, Panding Wang, Xiaogang Guo, Hongshuai Lei, Daining Fang   +7 more
wiley   +1 more source

Design, Modeling, and Simulation of a Novel Electromagnetic Linear Actuator for Linear Motion

IEEE Access
This paper presents the design, modeling, and simulation of a compact Electromagnetic Linear Actuator (ELA) and its application to a linear motion mechanism. The proposed actuator consists of a coil and a permanent magnet and can generate a linear motion
Shuaiby Mohamed, Youngwoo Im, Hyeonsang Shin, Youngshik Kim, Buhyun Shin   +4 more
doaj   +1 more source

Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives

Advanced Functional Materials, EarlyView.
A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim, Camryn A. Mills, Michael D. Bartlett   +2 more
wiley   +1 more source

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

Advanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis, Andrea Cosola, Pierre Bourdon, Hichem Dammak, Marco Sangermano, Frédéric Demoly, Marco Faustini, Amélie Pérot, Didier Lairez, Rakine Mouhoubi, Sébastien Blanquer, Giancarlo Rizza   +11 more
wiley   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source

A New Linear Oscillatory Actuator with Variable Characteristics Using Two Sets of Coils

Sensors, 2016
Nowadays, electromagnetic linear oscillatory actuators are used as vibration control devices because of their high controllability. However, there is a problem that thrust and vibration are small at a wide drive frequency range.
Fumiya Kitayama, Katsuhiro Hirata, Noboru Niguchi, Masashi Kobayashi   +3 more
doaj   +1 more source

Multi-Fidelity Design Optimisation of a Solenoid-Driven Linear Compressor

Actuators, 2020
Improved management and impermeability of refrigerants is a leading solution to reverse global warming. Therefore, crank-driven reciprocating refrigerator compressors are gradually replaced by more efficient, oil-free and hermetic linear compressors ...
Jarl Beckers, Diederik Coppitters, Ward De Paepe, Francesco Contino, Joeri Van Mierlo, Björn Verrelst   +5 more
doaj   +1 more source