Stator core design and electromagnetic simulation analysis of anti-gravity motors

2021 ◽  
Author(s):  
Xuguang Min ◽  
Xikai Xia ◽  
Shengtong Zhou ◽  
Feixia Luo
Keyword(s):  
Simulation Analysis ◽  
Electromagnetic Simulation ◽  
Stator Core

scholarly journals Impact of Modeling Simplifications on Lightning Strike Simulation for Aeroengine

2019 ◽  
Vol 2019 ◽  
pp. 1-11
Author(s):  
Yi-fan Qian ◽  
Zhi-feng Ye ◽  
Hai-bo Zhang
Keyword(s):  
Simulation Analysis ◽  
Simulation Software ◽  
Simplified Model ◽  
Lightning Strike ◽  
Electromagnetic Simulation ◽  
Experimental Conditions ◽  
Turbofan Engine ◽  
Engine Model ◽  
Simulation Results ◽  
The Difference

With the development of electromagnetic simulation software and affordable hardware, it is allowed for us to complete simulations for EMC purposes. However, simulation demands will be immense when simulations for models with complex structures, especially aircraft components, have to be solved. Hence, it is meaningful to investigate how to minimize the computational demands. One of the solutions to reduce the simulation expense is the simplification for the simulated model. But the simplified model should be guaranteed to provide credible simulation results which do not deviate from the original model apparently. Generally, the difference between the simulation results and experimental data is estimated, or if the experimental conditions are not achieved, the comparison between the simplified model and the original one has to be analyzed, at least. This paper explores the electromagnetic simulation of a turbofan engine encountering lightning strike. With the simplifications of different components on the turbofan engine, the influences on induced currents of engine controller cables are simulated and analyzed based on the transmission-line matrix method. A combining method of components removal and geometric structure simplification is proposed to simplify the whole engine model. Simplified components include compressor, combustion chamber, turbine, and nozzle. The effects of different simplification methods are quantified, and the rationality of the simplified model is verified by simulation analysis.

scholarly journals Experimental Study and Simulation Analysis on Electromagnetic Characteristics and Dynamic Response of a New Miniature Digital Valve

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Meisheng Yang ◽  
Junhui Zhang ◽  
Bing Xu
Keyword(s):  
Experimental Study ◽  
Dynamic Simulation ◽  
Dynamic Characteristics ◽  
Electromagnetic Force ◽  
Simulation Analysis ◽  
Electromagnetic Properties ◽  
Electromagnetic Simulation ◽  
Electromagnetic Structure ◽  
Electromagnetic Characteristics ◽  
Simulation Results

In order to get the better electromagnetic characteristics of the micro digital valve, the larger electromagnetic force should be obtained in the smaller electromagnetic structure. The electromagnetic force directly determines the electromagnetic properties of the miniature digital valve. The electromagnetic force test is studied in the paper. The results of electromagnetic simulation results are basically consistent with the experimental results. The simulation model is reliable and accurate. The dynamic simulation results show that the dynamic characteristics of the miniature digital valve meet the requirements of the digital hydraulic technology. Design of the new micro digital valve is reasonable.

Electromagnetic Simulation and Dynamic Analysis about the Electromagnetic Propelling System of Magnetic Suspension Launcher

2014 ◽  
Vol 599-601 ◽  
pp. 306-311
Author(s):  
Yun Sheng Zhang ◽  
Xiao Ning Chen ◽  
Li Yang Huang ◽  
Peng Chen
Keyword(s):  
Electromagnetic Field ◽  
Dynamic Analysis ◽  
Simulation Analysis ◽  
Linear Motor ◽  
Electromagnetic Theory ◽  
Influential Factors ◽  
Magnetic Suspension ◽  
Theoretical Research ◽  
Electromagnetic Simulation ◽  
Depth Study

Launcher is widely used in rescue and delivering items. On the basis of the electromagnetic theory, magnetic suspension principle and linear motor theory, we put forward the idea of magnetic suspension launcher. Through the theoretical research and simulation analysis, an in- depth study is also given to the distribution of the electromagnetic field and other influential factors concerning the propelling system, which provides the basis for the design of magnetic suspension launcher.

Influence of interlocking dowels on motor core loss

2016 ◽  
Vol 35 (2) ◽  
pp. 808-820 ◽  
Author(s):  
Gui-Yu Zhou ◽  
He Hao ◽  
Meng-Jia Jin ◽  
Jian-Xin Shen
Keyword(s):  
Eddy Current ◽  
Simulation Analysis ◽  
Core Loss ◽  
Optimal Solution ◽  
Stator Core ◽  
Content Type ◽  
Steel Sheets ◽  
Electromagnetic Model ◽  
Proper Number ◽  
3D Finite Element Method

Purpose – The purpose of this paper is to investigate the effect of the interlocking process on the iron loss in the lamination core and to increase the efficiency of electrical machines. Design/methodology/approach – A 3D electromagnetic model of the interlocking dowels is proposed in order to simulate the eddy current distribution in the lamination core. Considering the time-consuming of the 3D finite element method (FEM), a 2D electromagnetic model is then proposed based on the 3D model. Influence of the interlocking process on the motor performances is analyzed with 2D FEM, considering the electrical connection of the dowels and the magnetic property deterioration of the electrical steel sheets. Findings – The interlocking process removes the insulation between the laminations at the cut-edges of the interlocking dowels, causing extra eddy current loss in the lamination core. The effect of the interlocking process is dependent on the number, location and size of the interlocking dowels. Practical implications – The interlocking dowel model is established in order to simulate the effects of the interlocking process. By using the FEM calculation, optimal solution is discussed to minimize the undesired effect of the interlocking dowels. Originality/value – In this paper, the FEM model of the induction motor with interlocked stator core is first established, then simulation analysis is implemented. Results shows that choosing a proper number of interlocking dowels with suitable location and size can reduce the extra loss.

Micro-Defects Test Simulation Analysis and Experiment Research under Alternating Electromagnetic Excitation

2013 ◽  
Vol 798-799 ◽  
pp. 452-455
Author(s):  
Xia Yu ◽  
Wei Ming Zhang ◽  
Zhong Chao Qiu ◽  
Cheng Feng Chen
Keyword(s):  
Simulation Analysis ◽  
Crack Depth ◽  
Simulation Software ◽  
Good Effect ◽  
Electromagnetic Simulation ◽  
Test Results ◽  
Current Field ◽  
Electromagnetic Excitation ◽  
Simulation Results ◽  
Alternating Magnetic Fields

Alternating current field Measurement is one of the important progresses about electromagnetic nondestructive testing in recent years. Alternating magnetic fields excitation testing model is established by using electromagnetic simulation software ANSOFT, a flat plate crack defects are simulated. By analyzing its principle, crack depth and the width change influence on test results, finally the simulation results are verified by the method of experiment. The experimental results are consistent with the simulation results. The results show that this differential probe has good effect on crack defects test.

Development and Application of Electromagnetic Module in Multi-Fields Automatic Simulation Platform for Integrated Circuit Devices

2014 ◽  
Vol 722 ◽  
pp. 194-197
Author(s):  
Ruo Fan Zhang ◽  
Ke Zhang ◽  
Ren Cheng Wang ◽  
Jia Cheng ◽  
Yi Jia Lu
Keyword(s):  
Integrated Circuit ◽  
Geometric Modeling ◽  
Simulation Analysis ◽  
Secondary Development ◽  
Electromagnetic Simulation ◽  
Automatic Design ◽  
Transfer Data ◽  
Python Language ◽  
Element Simulation ◽  
Automatic Simulation

According to integrated circuit (IC) devices, this study proposed a integrated automatic design platform including geometric modeling, finite element simulation analysis, experimental design etc. The platform is a software system, the development of which is driven by product design of IC device chambers. As a module of the platform, the electromagnetic fields simulation part is based on secondary development of Ansys HFSS and the Python language to transfer data, build model and analyze automatically. The validity of the electromagnetic simulation module is verified by an example of PECVD SC300 chamber.

The Design and Simulation Analysis of Halbach Permanent Maglev Positioning Platform

2014 ◽  
Vol 494-495 ◽  
pp. 1320-1323
Author(s):  
Hu Xie ◽  
Shu Yuan Ma ◽  
Wen Bin Li
Keyword(s):  
Finite Elements ◽  
Simulation Analysis ◽  
Thermal Simulation ◽  
Electromagnetic Simulation ◽  
Finite Elements Methods

The thesis put forward a new maglev positioning platform whose structure, theories of operation and modeling were discussed. Applying finite elements methods in electromagnetic simulation and thermal simulation of the structure, the feasibility of the new platform was proved.

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