workshop_instructions_trainee09_7_basicpost_processing

1、9.7 Maxwell v15Basic Exercises Post Processing Post Processing in Maxwell 2D This exercise will discuss how to use the Maxwell 2D Post Processor. Field plots and calculator operations will demonstrated on an Eddy Current project. The following tasks will be performed: Plot the mesh Plot of MagB Plot

2、 of B_vector Plot of MagH along a line Create a table of MagH along a line Calculate average MagB in an object Verify DivB = 0 Calculate loss in the conductor Calculate net and total current flowing in the conductor Export field results to a file. Create Design To Create Design Select the menu item

3、Project Insert Maxwell 2D Design, or click on the icon Change the name of the Design to Post_exercise Set Solution Type To set the Solution Type: Select the menu item Maxwell 2D Solution Type Solution Type Window: 1. Geometry Mode: Cylindrical about Z 2. Choose Magnetic Eddy Current 3. Click the OK

4、button ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# Create Core Create Rectangle Select the menu item Draw Rectangle 1. Using the coordinate entry fields, enter the center of the base X: 0, Y: 0, Z:-10, Press the Enter key 2. Using the coordinate entry fields, enter the radius dX: 5, dY: 0

5、, dZ: 20, Press the Enter key Change the name of the sheet to Core and material to iron Create Coil Create Rectangle Select the menu item Draw Rectangle 1. Using the coordinate entry fields, enter the center of the base X: 8, Y: 0, Z: 0, Press the Enter key 2. Using the coordinate entry fields, ente

6、r the radius dX: 2, dY: 0, dZ: 2, Press the Enter key Change the name of the sheet to Coil and material to copper Create a line for plotting of the fields To Create a Line Select the menu item Draw Line 1. Using the coordinate entry fields, enter the first vertex X: 0, Y: 0, Z: 0, Press the Enter ke

7、y 2. Using the coordinate entry fields, enter the second vertex X: 0, Y: 0, Z: 20, Press the Enter key 3. Press Enter to exit line creation ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# Assign Excitation To Assign Excitation Select the sheet Coil from the history tree Select the menu item M

8、axwell 2D Excitations Assign Current In Current Excitation window, 1. Name: Current1 2. Value: 100 A 3. Phase: 0 4. Type: Solid (eddy effects can only be determined in solid sources) 5. Ref. Direction: Positive 6. Press OK Create Region To Create Simulation Region Select the menu item Draw Region In

9、 Region window, 1. Padding all directions similarly: Checked 2. Padding Type: Percentage Offset Value: 100 3. Press OK Set Eddy Effect To Set Eddy Calculations Select the menu item Maxwell 2D Excitations Set Eddy Effect In Set Eddy Effect window, 1. Core Eddy Effects: Unchecked 2. Press OK ANSYS Max

10、well 2D Field S imulator v15 Users Guide9.7-# Setup the Impedance Calculation To Setup Impedance Calculations Select the menu item Maxwell 2D Parameters Assign Matrix In Matrix window, 1. Current1: Include: Checked 2. Press OK Apply Mesh Operations In order to create a fine initial mesh, several mes

11、h operation will be performed. To Apply Mesh Operations for Core Select the sheet Core from the history tree Select the menu item Maxwell 2D Mesh Operations Assign Inside Selection Length Based In Element Length Based Refinement window, 1. Name: Length1 2. Restrict Length Of Elements: Unchecked 3. R

12、estrict the Number of Elements: Checked 4. Maximum Number of Elements: 500 5. Press OK To Apply Mesh Operations for Coil Select the sheet Coil from the history tree Select the menu item Maxwell 2D Mesh Operations Assign Inside Selection Length Based In Element Length Based Refinement window, 1. Name

13、: Length2 2. Restrict Length Of Elements: Unchecked 3. Restrict the Number of Elements: Checked 4. Maximum Number of Elements: 500 5. Press OK ANSYS Maxwell 2D Field Simulator v15 Users Guide9.7-# Assign Boundary To Assign Boundary Select the sheet Region from history tree Select the menu item Edit

14、Select All Object Edges Select the menu item Maxwell 2D Boundaries Assign Balloon Note: On symmetry axis, “Balloon Boundary” assignment is automatically skipped, This can also be achieved by selecting the edges of region which are not on symmetry axis. In Balloon Boundary window, Press OK Analysis S

15、etup To create an analysis setup: Select the menu item Maxwell 2D Analysis Setup Add Solution Setup Solution Setup Window: 1. Convergence tab Refinement Per Pass: 5 % 2. Solver tab Adaptive Frequency: 100 kHz 3. Click the OK button Analyze To run Solution Select the menu item Maxwell 2D Analyze All

16、ANSYS Maxwell 2D Field Simulator v15 Users Guide9.7-# Solution Data To view the Solution Data: Select the menu item Maxwell 2D Results Solution Data To view the Profile: 1. Click the Profile Tab. To view the Convergence: 1. Click the Convergence Tab Note: The default view is for convergence is Table

17、. Select the Plot radio button to view a graphical representations of the convergence data. To View Mesh information 1. Click Mesh Statistics Tab ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# To View Impedance values 1. Click Matrix tab 2. Set Type to Re(Z), Im(Z) Note: The imaginary term o

18、f the matrix includes both the inductive and capacitive reactance are reported in Ohms. 3. Change Type to R,L Note: The Imaginary term of the matrix includes only the inductance and is reported in Ohms and Henries Plot Mesh To Plot Mesh Select the menu item Edit Select All Select the menu item Maxwe

19、ll 2D Fields Plot Mesh In Create Mesh Plot window, 1. Press Done ANSYS Maxwell 2D Field Simulator v15 Users Guide9.7-# Plot Mag_B on Core To Plot Mag_B Select the sheet Core from the history tree Select the menu item Maxwell 3D Fields Fields B Mag_B In Create Field Plot window, 1. Press Done Plot Ve

20、ctor_B To Plot Vector_B Select the menu item Edit Select All Select the menu item Maxwell 2D Fields Fields B B_Vector In Create Field Plot window 1. Press Done To Modify Attributes Double click on the legend to change plot properties In the window 1. Plots tab Plot: B_Vector1 Select the tab OnSurfac

21、e Vector Plot 1. Spacing: Five Spaces 2. Min: 0.5 3. Max: 2 2. Press Apply and Close ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# Plot Mag_H along a Line To Plot Mag_H Select the menu item Maxwell 2D Results Create Field Reports Rectangular Plot In Report window. 1. Geometry: Polyline1 2.

22、X : Default 3. Category: Calculator Expressions 4. Quantity: Mag_H 5. Select New Report Table of Mag_H along a Line Select the menu item Maxwell 2D Results Create Field Reports Data Table In Report window. 1. Geometry: Polyline1 2. X : Default 3. Category: Calculator Expressions 4. Quantity: Mag_H 5

23、. Select New Report ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# Calculate Average Mag_B in an Object To Calculate Mag_B Over a Volume Select the menu item Maxwell 2D Fields Calculator 1. Select Input Quantity B 2. Select General Complex Real 3. Select Vector Mag 4. Select Input Geometry V

24、olume: Checked Select Core from the list Press OK 5. Select Scalar Integral RZ 6. Select Input Number Scalar: Checked Value: 1 Press OK 7. Select Input Geometry Volume: Checked Select Core from the list Press OK 8. Select Scalar Integral RZ 9. Select General / (Divide) 10. Select Output Eval The ave

25、rage value of flux density calculated is around 0.038 Tesla ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# Calculate DivB = 0 To Calculate DivB Select the menu item Maxwell 2D Fields Calculator 1. Select Input Quantity B 2. Select General Complex Real 3. Select Vector Divg 4. Select Input Ge

26、ometry Volume: Checked Select Core from the list Press OK 5. Select Scalar Integral RZ 6. Select Output Eval The divergence of B is approximately zero Calculate loss in a conductor To calculate losses in Coil 1. Select Input Quantity OhmicLoss 2. Select Input Geometry Volume: Checked Select Coil fro

27、m the list Press OK 3. Select Scalar Integral RZ 4. Select Output Eval The ohmic loss in the coil at 60Hz is approximately 3.82 Watts. ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.7-# Calculate the current flowing in a conductor To Calculate Net Current in Coil 1. Select Input Quantity J 2. Se

28、lect General Complex Real 3. Select Vector Scal? ScalarPhi 4. Select Input Geometry Surface: Checked Select Coil from the list Press OK 5. Select Scalar Integral XY 6. Select Output Eval Note: Since total current needs to be calculated over the 2D section of Coil, Integration is done with XY integral and not RZ The net current in the coil is equal to the source amp-turns = 100 Calculate Total Current including Eddy Component To Calculate Net Current in Coil 1