, 2013 ANSYS, Inc.May 21, 20131Release 14.5,Workshop 1 : Basic Magnetostatic Analysis,ANSYS Maxwell 3DV16,About the Workshop,Current,Permanent Magnet,S,N,Torque Calculation in Magnetostatic Solver This workshop demonstrates the basic steps required to setup a Magnetostatic problem using Maxwell 16. The workshop will discuss calculation of Torque acting on a Magnetic material due to applied magnetic field Problem Description As shown in the following image, the current in the coil generates a magnetic field pointing upward. The permanent magnet in the middle is magnetized along X-axis, hence there is a torque generated along Z-axis. Magnetic Field Generated by Coil Coil,2, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Problem Setup,Create Design Select the menu item Project Insert Maxwell 3D Design, or click on the icon Set Solution Type Select the menu item Maxwell 3D Solution Type Solution Type Window: Choose Magnetostatic Click the OK button,3, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Create Coil,Create Profile for Sweep Select the menu item Draw Regular Polygon Using the coordinate entry fields, enter the center position X: 0, Y: 5, Z: 0, Press the Enter key Using the coordinate entry fields, enter the radius dX: 0.5, dY: 0, dZ: 0, Press the Enter key Number of Segments: 12 Press OK Change the name of resulting object to Coil,4, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Create Coil,Sweep Profile Select the object Coil from the history tree Select the menu item Draw Sweep Around Axis In Sweep Around Axis window Sweep Axis: X Angle of Sweep: 360 deg Number of Segments: 30 Press OK Change material of resulting object to Copper Change its Color and transparency if desired,5, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Create Magnet,Create permanent Magnet Select the menu item Draw Box Using the coordinate entry fields, enter the box position X: -3, Y: -0.5, Z: -0.5, Press the Enter key Using the coordinate entry fields, enter the opposite corner dX: 6, dY: 1, dZ: 1, Press the Enter key Change the name of the resulting object to Magnet Change material of the object to NdFe35 Change its color and transparency if desired,6, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Check Magnetization Direction,Check Properties of Material Right click on NdFe35 from the history tree and select Properties In Select Definition window, select View/Edit Materials In View/Edit material window Ensure X Component is set to 1 Ensure Y and Z Component is set to 0,Note: It is important to check the direction in which the material is magnetized. By default Maxwell assigns magnetization direction of object as X axis of their orientation co-ordinate system. Users can either modify the direction or create a coordinate system in required direction to alter the direction of magnetization,7, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Create Coil Terminal,8, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Create Coil terminal Select the object Coil from the history tree Select the menu item Modeler Surface Section Section Plane: XY Press OK Change the name of the resulting sheet to Terminal Separate Sheets Select the sheet Terminal from the history tree Select the menu item Modeler Boolean Separate Bodies Delete Extra Sheet Select the sheet Terminal_Separate1 from the history tree Select the menu item Edit Delete,Assign Excitation,Assign Excitation Select the sheet Terminal from the history tree Select the menu item Maxwell 3D Excitations Assign Current In Current Excitation window, Name: Current1 Value: 100 A Type: Stranded Press OK,Note: The current value assigned for static solvers is in Ampere-Turns. Users should multiply the current value by number of turns in winding and specify resulting value in Current Excitation window.,9, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Assign Torque Parameter,Assign Torque Calculation Select the object Magnet from the history tree Select the menu item Maxwell 3D Parameters Assign Torque In Torque window, Name: Torque1 Type: Virtual Axis: Global:Z Positive: Checked Press OK,Note: if the Virtual option is selected for Torque, the system uses virtual work principles to compute the torque on an object.,10, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Finalize Geometry,Rotate Coil Press Ctrl and select the object Coil and Terminal from the history tree Select the menu item Edit Arrange Rotate In Rotate window, Axis: Z Angle: 45 deg Press OK Note: Coil rotation done after Terminal creation in order to use global planes for sectioning Create Simulation Region Select the menu item Draw Region In Region window, Padding all directions similarly: Checked Padding Type: Percentage Offset Value: 100 Press OK,11, 2013 ANSYS, Inc.,May 21, 2013,Release 14.5,Analyze,Create an analysis setup: Select the menu item Maxwell 3D Analysis Setup Add Solution Setup Solution Setup Window: Click the OK to accept default settings Start the solution process: Select the menu item Maxwell 3D Analyze All V