Numerical Calculation of Torque Transmission and Magnetic Circuit Finite Element Analysis of a Magnetorheological Clutch

2010 ◽  
Author(s):  
Hou You Fu ◽  
Tian Zu Zhi ◽  
Wang Nan Nan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Calculation ◽  
Magnetic Circuit ◽  
Element Analysis ◽  
Torque Transmission

scholarly journals Finite Element Analysis-Aided Performance Improvement of Circular Coil Assemblies Applied in Electric Vehicle Inductive Chargers

2021 ◽  
Author(s):  
Guodong Zhu ◽  
Dawei Gao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Electric Vehicle ◽  
Performance Improvement ◽  
Magnetic Circuit ◽  
Element Analysis ◽  
System Parameters ◽  
Leakage Magnetic Field ◽  
Fea Simulation ◽  
The Impact

Energy efficiency and leakage magnetic field (LMF) are two important issues in inductive chargers. In this work, the maximum achievable coil efficiency and the corresponding LMF strength are formulated as functions of system parameters, and figure of merits (FOM) are proposed for assessing the efficiency and LMF performance of the coil assemblies. The target application is electric vehicle inductive chargers where the LMF is suppressed via passive shielding. The impact of the coil assembly’s geometric parameters on both FOMs is examined through a combination of finite element analysis (FEA) simulation and magnetic circuit analysis, and measures to improve the FOMs are studied Optimization of an exemplary coil assembly within given dimensional limits is conducted and the performance improvement is verified by FEA simulation results. <br>

Finite Element Analysis of the Forging Process for Half-Shaft Bushing

2009 ◽  
Vol 16-19 ◽  
pp. 1248-1252
Author(s):  
Chun Dong Zhu ◽  
Man Chun Zhang ◽  
Lin Hua
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Numerical Calculation ◽  
Two Dimensional ◽  
Element Analysis ◽  
Forging Process ◽  
Die Life ◽  
Dimensional Finite Element ◽  
Forging Force

As an important forged part of an automobile, the inner hole of the half-shaft bushing must be formed directly. However, the process requires many steps, and how the forging, or deformation, is spread over the production steps directly affects the die life and forging force required. In this paper, the three steps involved in directly forging a half shaft bushing's inner hole are simulated using the two-dimensional finite element method. Further more, we improve the forging process. From numerical calculation, the improved necessary forging force is found to be only half the original force, and the die life is doubled.

The Establishing and Structural Analysis for Torque Shaft of the Shearer Based on Inventor and Algor

2013 ◽  
Vol 397-400 ◽  
pp. 662-667
Author(s):  
Jian Zhang ◽  
Xiang Xiang Zhang ◽  
Xiao Ying Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Parametric Analysis ◽  
Groove Depth ◽  
Dual Function ◽  
Analysis Software ◽  
Element Analysis ◽  
Model Interaction ◽  
Overload Protection ◽  
Torque Transmission

The torque shaft of shearer cutting part plays a dual-function of torque transmission and overload protection when the Shearer is working. Therefore it is necessary to study the reliability of the torque shaft. First, the parameterized torque shaft model was built on Inventor and simple parametric analysis of the torque shaft was done by its finite element analysis module. The unloading groove depth 5.079mm met the overload protection requirements. Then the model was imported into professional finite element analysis software Algor to verify the results. Linear statics analysis in Algor showed that when unloading groove depth valued 5.479mm the torque shaft would be broken once the shearer overload. The results of the analysis were reliable as no data was lost during the model interaction between Inventor and Algor.

Optimal Design of a Double-Sided Slotted Iron Core Type PMLSM with Manufacturing Considerations

2010 ◽  
Vol 670 ◽  
pp. 235-242 ◽  
Author(s):  
Y.W. Zhu ◽  
D.S. Kim ◽  
D.H. Kooa ◽  
Y.H. Cho
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Response Surface Methodology ◽  
Numerical Calculation ◽  
Optimal Design ◽  
Iron Core ◽  
Two Dimensional ◽  
Element Analysis ◽  
Detent Force ◽  
Calculation Results

This paper investigates an optimal design of a double-sided slotted iron core type permanent magnet linear synchronous motor (PMLSM) using for ropeless elevator system. To obtain the optimal structure, the combination of response surface methodology (RSM) and two dimensional (2D) finite element analysis (FEA), which can solve the problem effectively without much time consuming, is utilized to investigate the PMLSM characteristics. Moreover, the detent force is more detailed analyzed with the manufacturing consideration. In final some numerical calculation results are reported to validate the applicability of this double-sided slotted iron core type PMLSM in ropeless elevator system. Introduction

Finite Element Analysis of an Involute Gear Drive Considering Friction Effects

1989 ◽  
Vol 111 (1) ◽  
pp. 94-100 ◽  
Author(s):  
Wen-Hwa Chen ◽  
Pwu Tsai
Keyword(s):  
Experimental Data ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Element Model ◽  
Stress Distributions ◽  
Element Analysis ◽  
Gear Drive ◽  
Involute Gear ◽  
Torque Transmission ◽  
Effective Friction

A rigorous and accurate finite element model has been developed and applied to deal with an involute gear drive considering friction effects. The loss of torque transmission due to friction and effective friction coefficient are evaluated and computed. The rolling and/or sliding behaviors between two engaged gears during an engagement cycle are also discussed. The patterns of stress distributions and deformations of two contact gears at various engagement angles are then presented. Excellent correlations between the calculated results and referenced experimental data can be found.

Finite Element Analysis of Magnetic Field of Magnetic Sealing Drive Device

2014 ◽  
Vol 875-877 ◽  
pp. 885-889
Author(s):  
Ding Zhong Tan ◽  
Ying Qiu ◽  
Qi Ming Wang
Keyword(s):  
Magnetic Field ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Calculation ◽  
Field Distribution ◽  
Magnetic Circuit ◽  
Magnetic Field Distribution ◽  
Ansys Software ◽  
Element Analysis ◽  
Drive Torque

Magnetic sealing drive torque is designed and calculated and analyzed, Magnetic circuit and whole structure of the drive are designed, simulating and analyzing to Magnetic circuit of Magnetic sealing drive by ANSYS software, Magnetic field distribution and the effect to torque in model is analyzed and researched. It is shown that the results between theoretical calculation and analysis of the finite element are quite close.

scholarly journals Effect of Pole Shoe Design on Inclination Angle of Different Magnetic Fields in Permanent Magnet Machines

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2437
Author(s):  
Jonathan Sjölund ◽  
Sandra Eriksson
Keyword(s):  
Magnetic Field ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Field Strength ◽  
Magnetic Flux ◽  
Permanent Magnet ◽  
Magnetic Circuit ◽  
Magnetic Flux Density ◽  
Element Analysis ◽  
Inclination Angles

Electromagnetic modelling of electrical machines through finite element analysis is an important design tool for detailed studies of high resolution. Through the usage of finite element analysis, one can study the electromagnetic fields for information that is often difficult to acquire in an experimental test bench. The requirement for accurate result is that the magnetic circuit is modelled in a correct way, which may be more difficult to maintain for rare earth free permanent magnets with an operating range that is more likely to be close to non-linear regions for the relation between magnetic flux density and magnetic field strength. In this paper, the inclination angles of the magnetic flux density, magnetic field strength and magnetization are studied and means to reduce the inclination angles are investigated. Both rotating and linear machines are investigated in this paper, with different current densities induced in the stator windings. By proper design of the pole shoes, one can reduce the inclination angles of the fields in the permanent magnet. By controlling the inclination angles, one can both enhance the performance of the magnetic circuit and increase the accuracy of simpler models for permanent magnet modelling.

A Nonlinear Magnetic Circuit Analysis of a Permanent Magnet Biased Homopolar Bearing

1999 ◽  
Author(s):  
Andrew Kenny ◽  
Alan Palazzolo
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Permanent Magnet ◽  
Analytical Methods ◽  
Magnetic Circuit ◽  
Three Dimensional ◽  
Magnetic Bearing ◽  
Axial Flux ◽  
Element Analysis ◽  
Good Agreement

Abstract A magnetic circuit model for a homopolar magnetic bearing is presented. This model connects the fore and aft circumferential flux paths with axial flux paths through the rotor and back iron. The bias flux is provided by a circumferential permanent magnet in the back iron. Results for an analysis using the nonlinear Hyperco50 B-H curve are presented. These results are compared to the results of a three dimensional magnetostatic finite element analysis. The two analytical methods are in good agreement and show that the control flux in this type of bearing follows both circumferential and axial paths.

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