# FErez — eMotor Finite Element Analysis

> eMotor Finite Element Analysis (iPhone/iPad app by Guillaume Verez.)

- Source: https://appshunter.io/ios/app/ferez/id1626613231 (this page in markdown: same URL + `.md`)
- Developer: [Guillaume Verez](https://appshunter.io/developer/1626613233)
- Category: Utilities, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: English
- Released: 2023-01-03
- Data updated: 2025-01-09
- User reviews in markdown: https://appshunter.io/ios/app/ferez/id1626613231/reviews.md

## What is FErez?

FErez is made for electric motor designers who are looking for a convenient tool for early design stages. It offers:
- Winding layout configuration
- Geometry creation (internal rotor, various slot and magnet shapes, slotted/slotless/ironless), IPMs, synchronous machines and external rotors are on the way!
- Material selection (pre-loaded B(H) and iron loss curves), magnetic saturation is on the way as well!
- Multi-step FEA magnetostatic 1st order computations (torque, back-EMF, inductance)

As I explore with FEA, SwiftUI and electric motor design, more features will be added in the future. Also, new geometry topologies will progressively join the party. Please report any bug you might encounter and features you would like to see. Be indulgent, I work on this app alone and on my free time!


## Version history (last 5 releases)

### 1.10 — 2024-02-17

minor correction

### 1.09 — 2024-02-14

New FEA solver, much more robust

### 1.08 — 2023-08-24

Minor bug fixes

### 1.07 — 2023-08-22

Added motor computations based on the "Green Book" of Hendershot and Miller, as well as from various IEEE papers. Removed magnetic saturation as it was not robust enough for the moment.

### 1.05 — 2023-07-18

v1.05: Adding rotor and stator geometries

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-01-09.*