Results 31 to 40 of about 320 (169)

ANALYTICAL CALCULATION OF MAGNETIC FIELD DISTRIBUTION IN COAXIAL MAGNETIC GEARS [PDF]

Progress In Electromagnetics Research, 2009
Coaxial magnetic gears are a new breed of magnetic devices, which utilize the interaction of permanent magnet fields to enable torque transmission. Apart from using a numerical approach for their magnetic field analysis, an analytical approach is highly desirable since it can provide an insightful knowledge for design and optimization. In this paper, a
Linni Jian, Kwok-Tong Chau
openaire   +1 more source

Design Challenges to Expand the Functionality of Drones: Deformable Rotorcraft and Nature‐Inspired Flapping Drones

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee, Sumin Jung, Jinwoo Jang, Yeji Han, Minchae Kang, Jihun Seong, Suyeon Seo, Eunsol Park, Haesol Kwak, Min‐Woo Han   +9 more
wiley   +1 more source

Structural Design and Transmission Performance Analysis of Double Modulated Coaxial Magnetic Gear

Jixie chuandong, 2019
Aiming at the problem of low transmission torque caused by the magnetic flux leakage phenomenon of the traditional magnetic gear permanent magnet，a coaxial magnetic gear model with double modulation structure is established based on the relative ...
Peng Wu, Zina Zhu, Kaiyuan Li
doaj  

Advances in Triboelectric Nanogenerators With Rotating Structure

Carbon Energy, Volume 8, Issue 2, February 2026.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang, Chunxu Xue, Yutong Chen, Yujie Qiang, Seeram Ramakrishna   +4 more
wiley   +1 more source

Robotic Interventional Needle Insertion Assisted by a Cable‐Driven Parallel Robot

Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.
This article presents a body‐mounted cable‐driven parallel robot assisting the needle insertion procedure designated for automated interventional pain therapy. The 3D‐printed robot body and multiple thin cables can achieve high X‐ray compatibility for intervention. The robot performs full 6‐degree of freedom needle insertion and remote center of motion
Myungjin Jung, Sejeong Kim, Min‐Cheol Kim, Hyun‐Jung Kwon, Jaesoon Choi, Chang‐Sei Kim   +5 more
wiley   +1 more source

Reinforcement Learning Optimization of Coaxial Magnetic Gear Geometry with Finite Element Analysis

Machines
This manuscript presents a reinforcement learning (RL) agent method to optimize the geometry of a coaxial magnetic gear using a 2D finite element magnetic (FEM) simulation.
Georgi Ivanov, Valentin Mateev, Iliana Marinova, Wolfgang Gruber, Edmund Marth, Stefan Mallinger   +5 more
doaj   +1 more source

A Novel Electric Vehicle Powertrain System Supporting Multi-Path Power Flows: Its Architecture, Parameter Determination and System Simulation

Energies, 2017
In this paper, a novel electric vehicle powertrain system is proposed. In the system, a coaxial magnetic gear (CMG), an electromagnetic clutch, a lock, and two electric machines (EMs) are adopted to achieve the power-split by controlling the states of ...
Yujun Shi, Jin Wei, Zhengxing Deng, Linni Jian   +3 more
doaj   +1 more source

Design and Analysis of a 6‐Speed Coaxial Magnetic Gearbox With Axial Gear Shifting Mechanism for Automotive Applications

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This paper proposes a multi‐stage magnetic gearbox (MSMG) designed for automotive applications. The proposed architecture provides six distinct gear ratios within an integrated system. By effectively suppressing eddy current losses through adaptive segmentation, this design ensures robust performance for high‐power propulsion systems.
Ali Hosseini‐Fard, Seyed Hamid Shahalami, Esmaeil Fallah Choolabi   +2 more
wiley   +1 more source

Fast and accurate transient simulation of magnetic gears

AIP Advances
Magnetic gears, being contactless, offer distinct advantages over mechanical gears. Transient simulations are required for the evaluation of dynamic performance, but the complex geometry of magnetic gears makes them computationally intensive with high ...
Alok Sahoo, V. S. S. Pavan Kumar Hari
doaj   +1 more source

Dynamics Analysis of Flexible Rotors in Ground‐Based Test Platform for Large‐Capacity Offshore Wind Turbines

IET Renewable Power Generation, Volume 20, Issue 1, January/December 2026.
This study develops a system‐level dynamic model for ultra‐long low‐speed rotors of 22 MW offshore wind turbine test platforms, based on Timoshenko beam theory and multi‐bearing support coupling. The model is validated against ANSYS results, with frequency errors <3.1% for key modes, enabling accurate prediction of natural frequencies, critical speeds,
Yang Xue, Shiyao Qin, Chen Qi, Cong Liu, Ning Wang, Wenliang Zhao   +5 more
wiley   +1 more source