R&D service

Modeling & Optimization

Electromagnetic and thermal simulation, coupled to other physics, for optimal induction system design.

Fluxtrol’s modeling and optimization service simulates induction systems with the latest Flux 2D/3D and Elta 6.0 software for electromagnetic and thermal analysis, and couples results with other packages to model stress and deformation. Simulation is used in all Fluxtrol R&D projects to study processes and optimize induction systems.

We utilize the latest software versions of Flux 2D/3D and Elta 6.0 for electromagnetic and thermal computer simulation, with the ability to couple the results of simulation with other packages to model complex multiphysical processes such as stress and deformation phenomena. A majority of these projects are the result of industry demand, in cooperation with customers. We use simulation in all research and development projects for profound study of processes and optimal design of induction systems.

What is modeled

Fluxtrol’s simulation covers the electromagnetic and thermal processes in an induction system: the workpiece, the coil copper, magnetic flux controllers, and nearby bodies that absorb power. The effects of part geometry and material, motion, coil dimensions, flux controller shape and properties, power and frequency profile, quenchant and the coil cooling circuit can be examined, as described on the simulation page .

Tools

  • Flux 2D and 3D. Finite element analysis for electromagnetic and thermal problems, including motion of the part or inductor.
  • Elta 6.0. A 1D finite difference program with analytical formulations for 2D effects, quick for setting process parameters, with some customized 2D models for problems such as gear heat treatment and slab heating.
  • Partner codes. Results are exported into complementary packages, as when Dante is used for metallurgical transformation, residual stress and deformation.

How a modeling engagement works

  1. Define the problem and the targets, whether a new coil or an existing process.
  2. Build 2D or 3D models and calculate heating, current distribution and electrical parameters.
  3. Couple results with other packages when stress, distortion or other physics matter.
  4. Optimize coil geometry, controllers, cooling and process parameters.
  5. Compare with experiment in the laboratory to confirm the model.

The same loop appears in the coil workflows : in the hairpin coil example, simulation and test results agreed closely on temperature distribution.

Examples from the literature

  • A procedure was developed to account for magnetic losses in a concentrator inside Flux 2D, enabling temperature prediction for both copper and controller.
  • Elta 6.0 was applied to slab heating in a longitudinal magnetic field, a 3D electromagnetic and thermal problem.
  • ELTA and Dante were coupled to study stress and deformation in induction tube hardening.
  • A paper on simulation accuracy discusses where inaccuracy comes from and what users must watch.

See the technical library .

Outcomes

Modeling lets teams evaluate designs before building hardware, predict power supply needs from voltage, current, power and inductance, understand why existing coils behave as they do, and pursue improvements with a validated model.

Start a modeling project

Contact Fluxtrol with your process and goals.

Real-world results

Frequently asked questions

What software does Fluxtrol use?
Fluxtrol uses the latest versions of Flux 2D/3D and Elta 6.0 for electromagnetic and thermal simulation. Flux is finite element software with 2D and 3D capability and can include motion; ELTA is a 1D finite difference program with analytical 2D formulations suited to fast analysis of induction systems.
Can results be coupled with other physics?
Yes. Results can be coupled with other packages to model complex multiphysical processes such as stress and deformation. Fluxtrol has exported power distributions to Dante for metallurgical, stress and distortion analysis in published studies of axle shafts and tube hardening.
How accurate are the models?
There is no simple answer. Fluxtrol’s paper on accuracy covers sources of inaccuracy in electromagnetic and thermal induction simulation. Fluxtrol compares simulation with experiment, as in its hairpin coil example, which showed very strong agreement in temperature distribution.
What is optimized?
Simulation can evaluate coil copper dimensions, flux controller geometry and properties, part geometry, motion, power and frequency profile, quenchant, and the cooling circuit, and predict voltage, current, power and inductance for power supply selection.
Who drives the projects?
A majority of Fluxtrol’s modeling projects result from industry demand, in cooperation with customers. Fluxtrol also uses simulation in all of its own research and development projects for profound study of processes and optimal design of induction systems.

Optimizing an induction process?

Talk with a Fluxtrol engineer about your coil, material or heat pattern challenge.