Raphaël Pile

Raphaël Pile
Université d'Artois · LSEE Laboratoire des Systèmes Electrotechniques et Environnement

PhD Eng.

About

14
Publications
9,445
Reads
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70
Citations
Introduction
My current research interests focus on the magneto-mechanical coupling for the simulation of noise and vibrations in electrical machines. I have backgrounds and interests in applied mathematics, engineering, and computer science.
Additional affiliations
January 2019 - January 2021
L2EP - LABORATOIRE D'ELECTROTECHNIQUE ET D'ELECTRONIQUE DE PUISSANCE DE LILLE
Position
  • PhD Student
January 2019 - January 2021
LSEE - Laboratoire Systèmes Electrotechniques et Environnement
Position
  • PhD Student
October 2018 - July 2022
EOMYS ENGINEERING
Position
  • Engineer
Education
October 2018 - January 2021
Université de Lille
Field of study
  • Electrical Engineering
September 2016 - September 2017
Paul Sabatier University - Toulouse III
Field of study
  • Fundamental and Applied Mathematics
September 2013 - November 2017

Publications

Publications (14)
Thesis
Full-text available
The presence of magnetic stress harmonics inside the electrical machine is generally responsible for vibrations and acoustic noise generation. This phenomenon is called e-NVH (Noise, Vibrations and Harshness due to electromagnetic excitations) and has to be considered in the machine design to meet with NVH standard requirements, especially in autom...
Article
Full-text available
The Maxwell stress tensor (MST) method is commonly used to accurately compute the global efforts, such as electromagnetic torque ripple and unbalanced electromagnetic forces in electrical machines. The MST has been extended to the estimation of local magnetic surface force for the vibroacoustic design of electrical machines under electromagnetic ex...
Article
Full-text available
The analysis of noise and vibrations under electromagnetic excitations (e-NVH) in electrical machines requires to study the stator mechanical response when excited by Maxwell stress waves. In particular, the notion of unit-wave Frequency Response Function (FRF) is often used in e-NVH simulations to model the mechanical response under electromagneti...
Conference Paper
Full-text available
This article extends the use of tooth Frequency Response Functions (FRF) concept for the analysis of electric motor Noise, Vibration and Harshness due to electromagnetic forces (e-NVH) at intermediate design stage or after manufacturing, using both simulation and testing. The principle consists in first characterizing the structural response of the...
Conference Paper
Full-text available
Breakthrough innovations in electrical machines may be limited by parametric overlays and templates provided in commercial electromagnetic simulation software. Disruptive design spaces must therefore be explored using more flexible open-source software solutions. However, a significant scripting effort is necessary to define some new parametric geo...
Article
Full-text available
The Maxwell Tensor (MT) method is widely used to compute global forces or local surface forces for vibroacoustic design of electrical machines under electromagnetic excitation. In particular the air-gap Maxwell Tensor method is based on a cylindrical shell in the middle of the air-gap. This paper proposes to quantify the differences between the air...
Preprint
Full-text available
The Maxwell Stress Tensor (MST) method is commonly used to accurately compute the global efforts, such as electromagnetic torque ripple and unbalanced electromagnetic forces in electrical machines. The MST has been extended to the estimation of local magnetic surface force for the vibroacoustic design of electrical machines under electromagnetic ex...
Conference Paper
Full-text available
Airgap Maxwell tensor is widely used in numerical simulations to accurately compute global magnetic forces and torque but also to estimate magnetic surface force waves, for instance when evaluating magnetic stress harmonics responsible for electromagnetic vibrations and acoustic noise in electrical machines. This article shows that airgap surface f...
Poster
Full-text available
In electrical machine numerical simulations, the Maxwell Tensor is widely used to compute global forces or local surface force density along a surface in the air. This communication proposes to highlight the limits of the method with an academic case of slotless stator and rotor. In particular an analytic demonstration shows the existence of coeffi...
Conference Paper
Full-text available
This paper presents the first open-source development project for the electromagnetic design optimization of electrical machines and drives named Pyleecan – PYthon Library for Electrical Engineering Computational ANalysis. This paper first details the objectives of Pyleecan open-source development project, and the object-oriented architecture...
Article
Full-text available
This paper presents a comparison of several methods to compute the magnetic forces experienced by the stator teeth of electrical machines. In particular, the comparison focuses on the virtual work principle (VWP)-based nodal forces and the Maxwell tensor (MT) applied on different surfaces. The VWP is set as the reference. The magnetic field is comp...
Preprint
Full-text available
This paper presents a comparison of several methods to compute the magnetic forces experienced by the stator teeth of electrical machines. In particular, the comparison focuses on the virtual work principle (VWP)-based nodal forces and the Maxwell tensor (MT) applied on different surfaces. The VWP is set as the reference. The magnetic field is comp...

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Projects

Projects (2)
Project
Pyleecan (PYthon Library for Electrical Engineering Computational Analysis) aims at developing a unified object-oriented modelling framework of electrical machines and drives under Python language, providing a common framework for all existing free/open-source tools for the design of electrical machines (FEMM/xFemm, Elmer, Femag, GetDP, Code_Aster, etc).
Project
Magnetic force computation and projection on mechanical domain.