Simulation of electric and magnetic fields using FEMM - FH Aachen ...

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1.1.4 Add materials to the model Set up the information of material (schicht1, schicht2, inner, air) and conductor (layer1, layer2, gnd), using the functions under menu “Properties”. Figure 1-5 Properties menu The voltage on each layer must be calculated first. Table 1-2 Formula Cylinder- capacitor Figure 1-6Cylinder capacitor 3 Equation 1 →C‟1/C‟2=3/2 →U1/U2=C‟2/C‟1=2/3 Uges=U1+U2=130kV →U1=52kV U2=78kV If we want to define the voltages, click on “Conductors” and then fill in the names and values. Here we have the values of voltage, so we fill the blank under “Prescribed Voltage”. Otherwise we can fill the “Total Charge, C” if we have the value in unit Column. Voltage on Layer 1 is the total voltage (130kV) from center of cable to the ground. 3 http://upload.wikimedia.org/wikipedia/commons/b/b8/Cylindrical_CapacitorII.svg
Figure 1-7 Voltage on layer 1 Ground Figure 1-8 Ground Select an arc segment, press Space button and then in the column “in conductor”, we can choose which conductor it should be in. As shown below. Figure 1-9 Layer 1, 2, 3 1.1.5 Define conductor properties The properties of material are already given, εr of material in „schicht1‟ is 3; εr of material in „schicht2‟is 2. We use “Properties”→“Materials” to define them. Here we give both εx and εy the same number. In this way, εr will be determined as the value we need. εr =3 for schicht1 Figure 1-10Property of material 1
Page 1 and 2: Simulation of electric and magnetic
Page 3 and 4: Acknowledgments I would like to exp
Page 5 and 6: 1.4.1 Create a new file. ..........
Page 7 and 8: 3.2.1 Create new file .............
Page 9 and 10: Current flow procedures: 1. Create
Page 11: Problem Type: Axisymmetric Length U
Page 15 and 16: 1.1.7 Generate mesh and run FEA Run
Page 17 and 18: Figure 1-18E,t plot And this plot c
Page 19 and 20: 1.2.2 Set problem definition. Press
Page 21 and 22: But here we have a non-symmetric ca
Page 23 and 24: 1.2.6 Define conductor and material
Page 25 and 26: Figure 1-38 Contour Then select E,
Page 27 and 28: 1.3.3 Create a new model We treat t
Page 29 and 30: 1.3.5 Set up the properties of mate
Page 31 and 32: Figure 1-53 Result 1.3.9 Plot field
Page 33 and 34: Inner cable 2*ri=10 mm Flange(Flans
Page 35 and 36: Figure 1-62 Conductor properties Fi
Page 37 and 38: Figure 1-67Contour Use function to
Page 39 and 40: 1.5.2 Set problem definition. Press
Page 41 and 42: 1.5.6 Define conductor properties T
Page 43 and 44: Figure 1-83D,t plot 1.5.11 Comparis
Page 45 and 46: And this time it seems to be smooth
Page 47 and 48: The outer shell is connected with g
Page 49 and 50: 1.6.8 Plot field values Draw E and
Page 51 and 52: 1.7.3 Create a new model Draw 3 seg
Page 53 and 54: 1.7.8 Display results Figure 1-111R
Page 55 and 56: 2. Electrical Field Before we deal
Page 57 and 58: 2.1.5 Define conductor properties S
Page 59 and 60: Draw the contour from (0, 0) to (14
Page 61 and 62: Figure 2-13 New model step 2 2.2.4
Page 63 and 64:
σr=1 for schicht2 Figure 2-19Prope
Page 65 and 66:
2.2.9 Plot field values Choose cont
Page 67 and 68:
Figure 3-2 Problem definition 3.1.3
Page 69 and 70:
3.1.7 Define circuits. Select menu
Page 71 and 72:
3.1.10 Associate Properties with bo
Page 73 and 74:
Click on button . Then in the dialo
Page 75 and 76:
3.2 Air gap Here we have a square c
Page 77 and 78:
Figure 3-24 Circuit 3.2.8 Place Blo
Page 79 and 80:
Figure 3-29 Mesh 3.2.12 Analysis re
Page 81 and 82:
3.2.13 Plot Field Values Draw conto
Page 83 and 84:
List of figures Figure 1-1 Create a
Page 85 and 86:
Figure 1-89 New model .............
Page 87:
List of tables Table 1-1 Values of
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