Electric and Magnetic Field Calculations With Finite-Element Methods

Electric and Magnetic Field Calculations With Finite-Element Methods
Stanley Humphries
President, Field Precision Llc
Professor Emeritus, University of New Mexico
Contents
1 Introduction 4
2 Installing 2D Electric-field Software 6
3 First 2D Electrostatic Solution 9
4 Electrostatic Application: Building the Mesh 17
5 Electrostatic Application: Calculating and Analyzing Fields 24
6 Electrostatic Application: Meshing and Accuracy 28
7 Magnetostatic Solution: Simple Coil With Boundaries 36
8 Magnetostatic Solution: Boundary Effects and Automatic Operation 43
9 Magnetostatic Solution: the Role of Steel 48
10 Magnetostatic Solution: When Steel Gets Complicated 54
11 Magnetostatic Solution: Permanent Magnets 62
12 Adding 3D Software 68
13 3D Electrostatic Example: Stl Input 70
14 3D Electrostatic Example: Mesh Generation and Solution 74
15 3D Electrostatic Application: Getting Started 78
16 3D Electrostatic Application: Extrusions 84
17 3D Electrostatic Application: Mutual Capacitance 91
18 3D Magnetic Fields: Defining Coil Currents 98
19 3D Magnetic Fields: Free-space Calculations 105
20 3D Magnetic Fields: Iron and Permanent Magnets
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