Материал: Seminar_3_Magnetostatics_Two-wire_line_How_to
Magnetostatics How to do the QuickField part of your project (Spring 2019)
|
|
MAGNETOSTATIC PROBLEM |
1 |
|
|
Two-wire line and steel cylinder
Due to symmetry
we only need upper half of the model
|
+I |
−I |
|
|
|
|
|
|
|
|
|
|
Parameter |
Notation |
Value |
|
|
|
|
|
|
|
|
|
Distance from cylinder to wire |
a |
125 cm |
|
|
|
Distance between wires |
b |
45 cm |
|
|
|
|
|
|
|
|
|
|
Radius of cylinder |
R |
50 cm |
|
|
|
Diameter of wire |
D |
1 cm |
|
|
Permeability of cylinder |
µR |
400 |
|
|
|
|
|
|
||
|
|
Wire current |
I |
400 A |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
WEEK 2. QUICKFIELD FUNDAMENTALS |
2 |
Create QuickField Problem
Formulation:
Geometry class:
Axial Length:
Magnetostatics
Plane-parallel
1 m
Note!
Bx
B = rotA
By
= A y
= − A x
|
|
WEEK 2. QUICKFIELD FUNDAMENTALS |
3 |
|
|
Draw the Model Geometry (1/2)
We introduce an artificial outer boundary far enough from the line and the cylinder
|
|
WEEK 2. QUICKFIELD FUNDAMENTALS |
4 |
|
|
Draw the Model Geometry (2/2)
Use the Shape Inserter Tool (Edit / Insert Shape)
Choose a Circle
Anchor Point
Circle Diameter
Coordinates
of Anchor Point
The geometry contains 4 circles:
1.The steel cylinder,
2.Left wire
3.Right wire
4.Artificial outer boundary
And the horizontal diameter of the circular outer boundary
|
|
Diameter |
XC |
YC |
|
|
Cylinder |
100 |
0 |
0 |
|
|
|
|
|
|
|
|
Left wire |
1 |
125 |
0 |
|
|
|
|
|
|
|
|
Right wire |
1 |
170 |
0 |
|
|
|
|
|
|
|
|
Outer Boundary |
2000 |
0 |
0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
WEEK 2. QUICKFIELD FUNDAMENTALS |
5 |