workshop_instructions_trainee09_4_

1、 9.4 Maxwell v15Basic Exercises Parametric Solver 2D Parametric study using a coil and iron slug. An RZ Magnetostatic problem will be used to demonstrate the setup of a parametric solution using Optimetrics in Maxwell 2D. The coil current and the dimensional length of an iron slug will be varied and

2、 the force on the slug will be observed. Coil OR = 1.25mm Coil IR = 1mm Coil Height = 0.8mm Slug width = 1mm Slug depth = 1mm Slug Height = 1mm 3D Geometry: Coil and Iron Slug 2D Flux Lines and Flux Density Create Design To Create Design Select the menu item Project Insert Maxwell 2D Design, or clic

3、k on the icon 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 Magnetostatic 3. Click the OK button 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exerc

4、ises Parametric Solver Create Model Create Coil Select the menu item Draw Rectangle 1. Using the coordinate entry fields, enter the position of rectangle X: 1, Y: 0, Z: 0, Press the Enter key 2. Using the coordinate entry fields, enter the opposite corner dX: 0.25, dY: 0, dZ: 0.8, Press the Enter ke

5、y Change the name of resulting sheet to Coil and color to Orange Change the material of the sheet to Copper Create Slug Select the menu item Draw Rectangle 1. Using the coordinate entry fields, enter the position of rectangle X: 0, Y: 0, Z: 0, Press the Enter key 2. Using the coordinate entry fields

6、, enter the opposite corner dX: 0.5, dY: 0, dZ: 1, Press the Enter key Change the name of resulting sheet to Slug and color to Blue Change the material of the sheet to Steel_1008 Parameterize Slug Expand the history tree for the object Slug Double Click on the command CreateRectangle to open Propert

7、ies window, In Properties window, Change Xsize to sqrt(1/pi) Change Zsize to SlugHeight Press Enter 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver In Add Variable window, Unit Type: Length Unit: mm Value: 1 Press OK Note: By defining a variable

8、 name (SlugHeight) it becomes a design variable. Similarly, if an object is moved, its move distance can be assigned a variable. The Design Variables are accessible in the Property window by clicking on the Design name in the Project Manager. Or they can be viewed by clicking: Maxwell 2D Design Prop

9、erties Note: The parameter for Xsize is defined using the predefined constant, pi, and an equation that calculates the equivalent 2D cross-section of a 1mm2 slug which was used in the 3D Exercise. Other predefined constants can be found by selecting from the menu, Project Project Variables, and sele

10、cting Constants tab. Define Region Create Simulation Region Select the menu item Draw Region In Region window, 1. Pad all directions similarly: Checked 2. Padding Type: Percentage Offset 3. Value: 500 4. Press OK Note: Region will not be created in Negative X direction due to RZ- symmetry about the

11、Z-axis. 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver Assign Boundary To Assign Boundary to Region Edges Select the object Region from history tree Select the menu item Edit Select All Object Edges Select the menu item Maxwell 2D Boundaries As

12、sign Balloon Note: On symmetry axis, “Balloon Boundary” assignment is automatically skipped, This can also be achieved by selecting the edges of region whichare not on symmetry axis. In Balloon Boundary window, Press OK Assign Excitations To Assign Excitations Select the sheet Coil from history tree

13、 Select the menu item Maxwell 2D Excitations Assign Current Name: Current1 Value: AmpTurns Ref. Direction: Positive Press OK In Add Variable window, Value: 100 Press OK Assign Force Calculation To Assign Force Parameter Select the object Slug from history tree Select the menu item Maxwell 2D Paramet

14、ers Assign Force In Force Setup window, Name: SlugForce Press OK Analysis Setup To Create Analysis Setup Select the menu item Maxwell 2D Analysis Setup Add Solution Setup In Solve Setup window, Press OK Note: We have created Analysis Setup to enable Expression Cache tab. Parameters will be edited in

15、 next step 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver Modify Analysis Setup To Modify Analysis Setup Expand the Project Manager tree to view Analysis Double click on Setup1 to edit its parameters In Solve Setup window, General tab Maximum N

16、umber of Passes: 10 Percentage Error: 0.5 Expression Cache tab Select Add In Add to Expression Cache window, Category: Force Quantity: SlugForce.Force_z Select Add to Calculation and Done Change Title to SlugForce Select the tab in Convergence column In Adaptive Convergence window, Use this expressi

17、on for convergence: Checked Maximum Percentage Delta: 1 % Press OK Press OK to close Solve Setup window 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver Analyze To start the solution process: 1. Select the menu item Maxwell 2D Analyze All Solutio

18、n Data To View Solution Information Select the menu item Maxwell 2D Results Solution Data To View Convergence Select Convergence tab To View Force Values Select the Force tab Plot Flux Results To Plot Flux Select the menu item Edit Select All Select the menu item Maxwell 2D Fields Fields B Mag_B In

19、Create Field Plot window, Press Done Select the menu item Edit Select All Select the menu item Maxwell 2D Fields Fields A Flux_Lines In Create Field Plot window, Press Done 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver Create Parametric Setup

20、To Create Parametric Setup Select the menu item Maxwell 2D Optimetrics Analysis Add Parametric In Setup Sweep Analysis window, select Add In Add/Edit Sweep window, Variable: SlugHeight Select Linear Step Start: 1mm Stop: 2mm Step: 0.2mm Select Add Change Variable to AmpTurns Select Linear Step Start

21、: 100 A Stop: 200 A Step: 50 A Select Add and OK In Setup Sweep Analysis window, Select Table tab There should be 18 solutions since we defined 6 variations of SlugHeight and 3 variations of AmpTurns. Select Calculations tab Select Setup Calculations In Add/Edit Calculations window, Category: Expres

22、sion Cache Quantity: ExprCache(SlugForce) Select Add Calculation and Done 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver Select Options tab Save Fields And Mesh: Checked Copy geometrically equivalent meshes: Checked Select OK to close Setup Swe

23、ep Analysis window Solve Parametric Problem To Solve Parametric Analysis Expand the Project Manager tree for Optimetrics Right click on the tab Parametric Setup1 and select Analyze Note: the solving criteria is taken from the nominal problem, Setup1 . Each parametric solution will re-mesh if the geo

24、metry has changed or the energy error criteria is not met as defined in Setup1. 9.4-#ANSYS Maxwell 2D Field Simulator v15 Users Guide 9.4 Maxwell v15Basic Exercises Parametric Solver View Solution Progress To View Solution Progress Select the menu item Maxwell 2D Optimetrics Analysis Optimetrics Results In Post Analysis Display window, Set the radio button to Table to