Circuit analysis of electromagnetic force in terms of effective inductance

1966 ◽  
Vol 113 (11) ◽  
pp. 1873 ◽  
Author(s):  
M.R. Harris
Keyword(s):  
Electromagnetic Force ◽  
Circuit Analysis ◽  
Effective Inductance

scholarly journals An Electromagnetic Force Theorem for Quasi-stationary Currents

1965 ◽  
Vol 18 (3) ◽  
pp. 195 ◽  
Author(s):  
WE Smith
Keyword(s):  
Electromagnetic Force ◽  
Electrical Measuring ◽  
Electromagnetic Levitation ◽  
Mechanical Stresses ◽  
Absolute Calibration ◽  
Measuring Instruments ◽  
Practical Applications ◽  
Magnetic Forces ◽  
Derivatives Of ◽  
Effective Inductance

It is shown that the time-averaged magnetic forces produced in a system excited by quasi-stationary currents may be expressed in terms of derivatives of effective inductance parameters in a manner similar to that of magnetostatics. Practical applications of the theorem include electromagnetic levitation, the absolute calibration of electrical measuring instruments, and the assessment of mechanical stresses in magnet assemblies.

Behavior Models of Voltage Differencing Inverting Buffered Amplifier and Applications in Circuit Analysis

2019 ◽  
Vol 12 (4) ◽  
pp. 298-303
Author(s):  
YongAn LI
Keyword(s):  
Large Scale ◽  
Vlsi Design ◽  
Circuit Analysis ◽  
Second Order ◽  
Very Large Scale Integration ◽  
Behavioral Models ◽  
Order Filter ◽  
Large Scale Integration ◽  
Scale Integration ◽  
Behavior Models

Background: The symbolic nodal analysis acts as a pivotal part of the very large scale integration (VLSI) design. Methods: In this work, based on the terminal relations for the pathological elements and the voltage differencing inverting buffered amplifier (VDIBA), twelve alternative pathological models for the VDIBA are presented. Moreover, the proposed models are applied to the VDIBA-based second-order filter and oscillator so as to simplify the circuit analysis. Results: The result shows that the behavioral models for the VDIBA are systematic, effective and powerful in the symbolic nodal circuit analysis.</P>

Analysis of Vibration Caused by Electromagnetic Force on Stator End-Winding of Large Dry Submersible Motor

2013 ◽  
Vol 416-417 ◽  
pp. 428-432
Author(s):  
Li Shan ◽  
Xiao Wei Cheng ◽  
Yong Fang ◽  
Xiao Hua Bao
Keyword(s):  
Electromagnetic Field ◽  
Steady State ◽  
Transition State ◽  
Electromagnetic Force ◽  
Radial Displacement ◽  
Radial Direction ◽  
Axial Direction ◽  
Axial Displacement ◽  
Force Density ◽  
Submersible Motor

This paper investigates the vibration which caused by electromagnetic on the stator end-winding of the large dry submersible motor. Firstly, the electromagnetic field which included transition state and steady state is researched by 3-D FEM. Secondly, the electromagnetic force which lead to vibrations of end-winding is calculated by numerical method, it can be obtained that where endured the largest force density along the slant part of end-winding. Finally, the radial displacement and the axial displacement of the slant part which caused by vibrations is studied, the analysis results show that the axial displacement is larger than the amplitude of radial displacement. It indicates that the slant part of end-winding will be more easily damaged at axial direction than radial direction.

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