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Electromagnetic field analysis for development of electromechanical products such as motors, actuators, inductors, transformers, magnetic sensors, etc.

ANSYS Maxwell is an electromagnetic field analysis tool for the development of electromechanical products such as motors, actuators, inductors, transformers, and magnetic sensors. The electromagnetic field distribution of the object to be solved can be intuitively displayed, and has the function of automatically calculating design parameters such as electromagnetic force, moment, inductance, and capacitance. The simulation results can be easily compared with the experimental results.

ANSYS Maxwell has an intuitive and easy-to-use GUI and an automatic adaptive meshing solver to ensure stable, high-precision solutions. Beginners can also use simple operations to get accurate analysis results just like software use experts.
Field of application

● Electromechanical products: motors (rotary motors, linear motors), generators, actuators, time delay switches, etc.

Coils: Inductors, Transformers, Reactors, Solenoid Valves, Induction Heaters, Wireless Charging, RFID, Smart Keyless Start, etc.

● Sensors: magnetic sensors, magnetic shields, magnetic heads, electrostatic touch screens, etc.

● Permanent magnets: magnetization, demagnetization, etc.

● Others: Cables, Insulation Equipment
Features and features
Solver
● 2D solver (XY plane solution, axisymmetric plane solution), 3D solver
● Magnetic field solution: static magnetic field, alternating magnetic field (frequency response), transient magnetic field
● Electric field solution: electrostatic field, DC conduction field, AC conduction field (2D), transient electric field (3D)
● Vector finite element method

Output results
● Electromagnetic field, energy distribution (scalar field, vector field)
— The scalar field/vector field such as magnetic field, electric field, current density, loss, power, etc. can be obtained through post-processing to obtain other physical quantities
● Design parameters
— Electromagnetic force, moment, resistance, inductance, capacitance
● Can be output by chart or text

GUI and modeling features
● Windows-style graphical operation, shortcut toolbar
● comes with 3D CAD modeling capabilities, easy and intuitive operation
● Use of variables and functions
- For the component's physical dimensions, position, material properties, boundary conditions, etc., the input value can be used as a variable for parameterized scanning and optimization analysis. Moreover, not only can four operations be performed between variables, but also trigonometric and logarithmic functions can be performed. Various function operations.

Various functions
● Standard CAD interface: SAT, SAB, DXF, DWG.
● Analyze and automatically repair models imported from external CAD.
● Various boundary conditions: symmetrical boundary, periodic boundary, insulation boundary, impedance boundary, etc.
● Various nonlinear materials: anisotropic, permanent magnets, laminated materials, etc.
● Core loss calculation.
● Calculation of magnetization and demagnetization of permanent magnets.
• Motion solver, a variable-speed response solver based on the equation of motion.
• Dynamic linking with Maxwell's own circuit editor.
● Realize the behavior-level dynamic coupling simulation with the electromechanical system control software.
• Joint multi-physics simulation with structural, thermal, and fluid simulators. (ANSYS, ANSYS Fluent)
● Models can be read directly from the aid of design tools (ANSYS RMxprt, ANSYS PExprt)
● As a near-field radiation source, linked to high-frequency electromagnetic field solver calculations (ANSYS HFSS)
● Scripting support (VB, JAVA, IronPython)
● batch solution

Options
● Ansoftlinks for MCAD:
— IGES, STEP, CREO (formerly ProE), Unigraphics, Parasolid, CATIA V4/V5
● Parameter scanning, optimization, statistical analysis (Optimetrics, ANSYS DesignXplorer)
● Multi-core parallel computing (HPC)
● Distributed High Performance Computing (DSO, HPC) for multiple cores or multiple compute nodes on the network

Core loss calculation
The classical steinmetz method widely used in core loss calculation was improved and modified, and an improved steinmetz method was proposed. The classic steinmetz method calculates the iron loss through post-processing, without considering the effect of core loss on the magnetic field distribution. The improved steinmetz method used in ANSYS Maxwell to calculate the core loss can account for the effect of core loss on the magnetic field while calculating the core loss.

Nonlinear anisotropic material
ANSYS Maxwell's nonlinear anisotropic materials can take into account material asymmetry in the axial direction. For magnetic materials and anisotropic materials such as silicon steel plates, accurate analysis can be performed. For laminated materials that are difficult to build an actual model—such as electromagnetic steel—it is easy to model and parameterize using equivalent models.

script
Most of ANSYS electromagnetic products support VB/JAVA scripting, as well as the IronPython language. The entire process, from software startup, modeling, to outputting the results of the solution, can be documented by scripts to facilitate the construction of an automated solution environment.

Application case

Magnetic Separation Equipment

Motor Applications

Induction heating application

Induction heating requires the use of a harmonic solver to solve the transient temperature solver. This example is 3D simulation.
The heating element is stainless steel and the material properties (conductivity, temperature conductivity, and specific heat capacity) are non-linear and change with temperature.
The higher the frequency, the more obvious the skin effect, and the user can greatly increase the calculation speed by using the surface impedance function. As the temperature increases, the surface impedance automatically updates based on changes in the skin effect.

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