Large-Scale and Fast Nonlinear Magnetostatic Field Analysis by the Magnetic Moment Method With the Adaptive Cross Approximation

2007 ◽  
Vol 43 (4) ◽  
pp. 1277-1280 ◽  
Author(s):  
Yasuhito Takahashi ◽  
Chiharu Matsumoto ◽  
Shinji Wakao
Keyword(s):  
Magnetic Moment ◽  
Moment Method ◽  
Large Scale ◽  
Field Analysis ◽  
Magnetostatic Field ◽  
Adaptive Cross Approximation

Finite-Element Analysis of the Magnetostatic Field of a Coaxial Magnetic Gear Device

2015 ◽  
Vol 764-765 ◽  
pp. 289-293
Author(s):  
Yi Chang Wu ◽  
Han Ting Hsu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Flux ◽  
High Speed ◽  
Field Analysis ◽  
Element Analysis ◽  
Magnetostatic Field ◽  
Speed Reduction ◽  
Dimensional Finite Element ◽  
Magnetic Gear

This paper presents the magnetostatic field analysis of a coaxial magnetic gear device proposed by Atallah and Howe. The structural configuration and speed reduction ratio of this magnetic gear device are introduced. The 2-dimensional finite-element analysis (2-D FEA), conducted by applying commercial FEA software Ansoft/Maxwell, is performed to evaluate the magnetostatic field distribution, especially for the magnetic flux densities within the outer air-gap. Once the number of steel pole-pieces equals the sum of the pole-pair numbers of the high-speed rotor and the low-speed rotor, the coaxial magnetic gear device possesses higher magnetic flux densities, thereby generating greater transmitted torque.

scholarly journals A Magnetic Phenomena Analysis by Employing Particle Method and Magnetic Moment Method

2015 ◽  
Vol 23 (2) ◽  
pp. 282-287 ◽  
Author(s):  
Kenta Mitsufuji ◽  
Katsuhiro Hirata ◽  
Fumikazu Miyasaka ◽  
Shuhei Matsuzawa
Keyword(s):  
Magnetic Moment ◽  
Moment Method ◽  
Particle Method ◽  
Magnetic Phenomena

Leveraging coherent wave field analysis and deep learning in fiber-optic seismology

2021 ◽  
Author(s):  
Benjamin Schwarz ◽  
Korbinian Sager ◽  
Philippe Jousset ◽  
Gilda Currenti ◽  
Charlotte Krawczyk ◽  
...  
Keyword(s):  
Deep Learning ◽  
Wave Field ◽  
Real Time ◽  
Learning Strategies ◽  
Data Storage ◽  
Large Scale ◽  
Fiber Optic ◽  
Positive Impact ◽  
Field Analysis ◽  
Coherent Wave

<p><span>Fiber-optic cables form an integral part of modern telecommunications infrastructure and are ubiquitous in particular in regions where dedicated seismic instrumentation is traditionally sparse or lacking entirely. Fiber-optic seismology promises to enable affordable and time-extended observations of earth and environmental processes at an unprecedented temporal and spatial resolution. The method’s unique potential for combined large-N and large-T observations implies intriguing opportunities but also significant challenges in terms of data storage, data handling and computation.</span></p><p><span>Our goal is to enable real-time data enhancement, rapid signal detection and wave field characterization without the need for time-demanding user interaction. We therefore combine coherent wave field analysis, an optics-inspired processing framework developed in controlled-source seismology, with state-of-the-art deep convolutional neural network (CNN) architectures commonly used in visual perception. While conventional deep learning strategies have to rely on manually labeled or purely synthetic training datasets, coherent wave field analysis labels field data based on physical principles and enables large-scale and purely data-driven training of the CNN models. The shear amount of data already recorded in various settings makes artificial data generation by numerical modeling superfluous – a task that is often constrained by incomplete knowledge of the embedding medium and an insufficient description of processes at or close to the surface, which are challenging to capture in integrated simulations.</span></p><p><span>Applications to extensive field datasets acquired with dark-fiber infrastructure at a geothermal field in SW Iceland and in a town at the flank of Mt Etna, Italy, reveal that the suggested framework generalizes well across different observational scales and environments, and sheds new light on the origin of a broad range of physically distinct wave fields that can be sensed with fiber-optic technology. Owing to the real-time applicability with affordable computing infrastructure, our analysis lends itself well to rapid on-the-fly data enhancement, wave field separation and compression strategies, thereby promising to have a positive impact on the full processing chain currently in use in fiber-optic seismology.</span></p>

Large-scale and highly accurate magnetic field analysis of magnetic shield

2006 ◽  
Vol 99 (8) ◽  
pp. 08H904 ◽  
Author(s):  
Y. Takahashi ◽  
S. Wakao ◽  
A. Kameari
Keyword(s):  
Magnetic Field ◽  
Large Scale ◽  
Field Analysis ◽  
Magnetic Shield ◽  
Magnetic Field Analysis

The Simplified Flow Field Analysis Method of Multi-Layers Parallel Plates Perfusion Bioreactor

2013 ◽  
Vol 477-478 ◽  
pp. 191-196
Author(s):  
Yu Bao Gao ◽  
Wei Hong Zhou ◽  
Lu Shan Cen ◽  
Yu Cong Xu ◽  
Jiu Xing Liang ◽  
...  
Keyword(s):  
Flow Field ◽  
Large Scale ◽  
Structural Parameters ◽  
Field Analysis ◽  
Perfusion Bioreactor ◽  
Parallel Plates ◽  
Established Relationship ◽  
Computational Fluid Dynamics Cfd ◽  
Flow Field Analysis ◽  
Flow Shear Stress

Multi-layers parallel plates perfusion bioreactor has the potential advantage in cells cultivation of tissue engineering and good scalability for cells cultivation on a large scale. It is necessary to analyze the distribution of flow shear stress (FSS) of bioreactors which has strong influence on the growth of cells. The result of meshing was not satisfactory because of the complexity of multi-layers parallel plates when using computational fluid dynamics (CFD) to analyze the FSS, and the amount of calculation was great and complex especially under the process of influence on FSS caused by analyzing the different structure. The new method of simplified flow field analysis was presented in this paper, which was based on relation between FSS and flow and made the process simpler by analyzing distribution of rate instead of FSS. The simulation result showed that this method can satisfy the requirement of precision and provide reference for the analysis of the flow field which had the established relationship between structural parameters and laminar flow within it.

Investigation of radiated field analysis model for moment method from microstrip line on PCB

2007 ◽  
Vol 90 (8) ◽  
pp. 20-29
Author(s):  
Hiroaki Koyama ◽  
Masato Kawabata ◽  
Yasuhiro Ishida ◽  
Nobuo Kuwabara
Keyword(s):  
Moment Method ◽  
Microstrip Line ◽  
Field Analysis ◽  
Analysis Model
Sign in / Sign up

Export Citation Format

Share Document