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Software · Electric Machine Engineering

Indux MEC

Magnetic-equivalent-circuit early design and candidate comparison

From target specification through candidate comparison to drawings and FEM-ready STEP — one cycle of early motor design, finished in a single session.

Why MEC first

The fastest route through early motor design

You do not need to reach for a finite-element solver — hard to learn and slow per case — at the start of motor design. Magnetic equivalent circuits and empirical relations, with AI on top, mean that stating the target specification is enough to find a strong design candidate quickly.

Cut-and-try speed

MEC and empirical relations compute a candidate in seconds, so a wide design space can be explored without FEA.

AI operates the session directly

The AI does not merely suggest — it changes real design parameters and runs the solver through the same path a person would.

Design to analysis to CAD, in one place

From sizing through DXF drawings to FEM-ready STEP, without shuttling files between tools.

Grounded in verified engineering

Built on theory and empirical relations accumulated at KERI and KETI, and measured material data provided by KITECH.

Ask in plain language

Ask, and the values and results on screen change with it

This is not a chat window parked beside the UI. The AI changes design parameters and runs computation through the same path a person uses in the tree menu. Changes inside the session can always be undone; only saving to the project file requires human approval.

User

increase the stator slot count to 36 and recompute

AI

Slot count changed from 24 to 36 and recomputed.

- Efficiency: 91.2% → 92.7% (+1.5%p)

- Power factor: 0.83 → 0.81 (-0.02)

Save this change to the project?

User

yes, save it

AI

[Awaiting approval] Save to the project file? [Approve] [Cancel]

Beyond the in-app chat panel, standard MCP clients such as Claude Desktop and Claude Code can connect directly to the session.

Why MEC

What makes MEC right for this stage

CriterionMEC + empirical + AIFinite element analysis (FEA)
Time per caseSecondsMinutes to tens of minutes
Learning curveGentle — centred on entering specificationsSteep — meshing, boundary conditions, solver options
Where it fitsEarly sizing, comparing candidatesDetailed verification, finalising the design
Role in the Indux familyIndux MECIndux LFX (picks up the STEP handover)

Indux MEC does not replace FEA. Once a design is settled, the consistent geometry is handed over as STEP, removing the pre-processing time on the Indux LFX side.

Workflow

From specification to drawing

  1. 01 Create the project — shared information such as materials and operating points
  2. 02 Create a case — choose the machine type (SCIM / LSPM / SynRM / IPMSM)
  3. 03 Enter machine spec, winding, conductor, stator and rotor — by form or by asking the AI
  4. 04 Run Solve — nonlinear computation shows progress and notifies on completion
  5. 05 Check results — efficiency, power factor and torque curves, and the 3D section
  6. 06 Duplicate and iterate until a suitable candidate emerges (cut and try)
  7. 07 Export drawings — DXF for manufacturing or STEP for FEM pre-processing

FAQ

Frequently asked questions

What if the AI assistant breaks the design by mistake?

Changes the AI makes inside a session — adjusting settings, running computation — can always be undone. Only the moment it is written permanently to the project file requires human approval.

How does this relate to IMCA, the induction-motor-only program?

IMCA continues to be available as an induction-motor-specific program. Indux MEC is the result of consolidating the separate magnetic-equivalent-circuit design and analysis tools, previously provided per machine type, into one application.

How much can the accuracy be trusted?

It is based on empirical relations accumulated through joint development with KERI and KETI, and measured material data from KITECH, targeting practical accuracy at the early design stage. Final verification with FEM analysis such as Indux LFX is still recommended.

Can it be used without an internet connection?

The desktop application runs locally; only the AI features need to be online. Design, computation and drawing export all work offline without AI.

Supported machine types

Four types, one engine

SCIM, LSPM, SynRM and IPMSM all run on the same magnetic-equivalent-circuit engine and the same project structure (shared material pool, shared operating points). Switching machine type is not opening a different program — it is changing the type setting on one case.

Induction motor design screen

01 · SCIM

Induction motor — six squirrel-cage rotor shapes

An induction motor design engine built on experience accumulated at the Korea Electrotechnology Research Institute (KERI). Six rotor bar shapes are supported — rectangular, trapezoidal, round, circular, double cage and more — and the double cage lets you specify upper and lower cages independently to optimise starting characteristics and rated efficiency together.

SynRM design screen

02 · SynRM

Synchronous reluctance motor — flux barrier optimisation

With no magnets, SynRM performance is governed by the flux barrier geometry in the rotor core, which makes core design particularly demanding. Indux MEC folds optimisation theory into the sizing stage to carry out that design and characteristic analysis quickly.

LSPM winding layout screen

03 · LSPM

Line-start permanent magnet synchronous motor

Built on experience accumulated at the Korea Electronics Technology Institute (KETI). Supports theory-based core sizing that considers both the line-start and synchronous operating regions, and rotor sizing including magnet placement and magnetisation direction.

IPMSM rotor magnet layout design screen

04 · IPMSM

Interior permanent magnet synchronous motor

A design that embeds magnets inside the rotor core for high efficiency and power density. Provides magnetic-equivalent-circuit models reflecting V-type, bar-type and delta-type magnet arrangements, and sizing relations that account for demagnetisation margin.

Related

MotorSpace

High-efficiency motor development and collaboration platform

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Turn early motor design into a second-by-second comparison

Tell us your target specification and machine type, and we will confirm what Indux MEC covers.