Mechanical Calculation of Stator Core Vibration of Rotating Electric Machines Using an Analytical Beam Element Model

authored by: A. de Barros, M. E. Gerlach, X. Huang, M. Langfermann, B. Ponick, A. Ebrahimi
Abstract: The stator core vibration caused by electromagnetic forces is an important topic in the design of electric machines. A crucial task for the comprehensive analysis of this issue is to accurately estimate the eigenmodes and eigenfrequencies of the mechanical system, which allows the calculation of the forced mechanical response. This paper presents a new analytical model based on beam elements as an alternative to the typical finite-element (FE) and classical analytical models applied for this purpose assuming a 2D simplification of the system. The proposed model takes the stator yoke and teeth into account and is able to predict the eigenmodes, eigenfrequencies and forced response of the stator core of rotating electric machines, such as synchronous and induction motors. The results are compared to FE and analytical calculations and validated based on measurements on the stator core of a permanent magnet synchronous motor.
Organisation(s): Institute of Drive Systems and Power Electronics
Type: Article
Journal: IEEE Transactions on Industry Applications
Volume: 60
Pages: 47-56
No. of pages: 10
ISSN: 0093-9994
Publication date: 18.01.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Electrical and Electronic Engineering, Control and Systems Engineering, Industrial and Manufacturing Engineering
Electronic version(s): https://doi.org/10.1109/TIA.2023.3286380 (Access: Closed)

BibTeX

@article{24bb5dd22e1043cc96059e8bb39f81d9,
title = "Mechanical Calculation of Stator Core Vibration of Rotating Electric Machines Using an Analytical Beam Element Model",
abstract = "The stator core vibration caused by electromagnetic forces is an important topic in the design of electric machines. A crucial task for the comprehensive analysis of this issue is to accurately estimate the eigenmodes and eigenfrequencies of the mechanical system, which allows the calculation of the forced mechanical response. This paper presents a new analytical model based on beam elements as an alternative to the typical finite-element (FE) and classical analytical models applied for this purpose assuming a 2D simplification of the system. The proposed model takes the stator yoke and teeth into account and is able to predict the eigenmodes, eigenfrequencies and forced response of the stator core of rotating electric machines, such as synchronous and induction motors. The results are compared to FE and analytical calculations and validated based on measurements on the stator core of a permanent magnet synchronous motor.",
keywords = "analytic calculation, Analytical models, beam element, Damping, eigenfrequencies, eigenmodes, Electric machines, finite element analysis, Finite element analysis, magnetic cores, Mathematical models, modal analysis, numerical models, Stator cores, Stator windings, stators, vibrations, Windings, Analytic calculation, electric machines",
author = "Barros, {A. de} and Gerlach, {M. E.} and X. Huang and M. Langfermann and B. Ponick and A. Ebrahimi",
year = "2024",
month = jan,
day = "18",
doi = "10.1109/TIA.2023.3286380",
language = "English",
volume = "60",
pages = "47--56",
journal = "IEEE Transactions on Industry Applications",
issn = "0093-9994",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "1",
}