This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effects of Unbalanced Magnetic Pull on NVH Performance of an Electric Drivetrain
Technical Paper
2018-01-1504
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Designing well-performing electric drivetrains requires a comprehensive understanding of the electro-mechanical interactions. The paper investigates the effect of unbalanced magnetic pull (UMP) due to rotor eccentricity in a typical automotive electric driveline with an integrated interior permanent magnet (IPM) machine and a two-stage gearbox. The investigation couples electromagnetic finite element analysis in Cobham Opera with electromechanical drivetrain simulation, including gears, shafts, bearings and housing in RomaxDESIGNER.
Gear force can deflect the rotor which causes UMP between the rotor and the stator. It is shown that UMP varies non-linearly with rotor offset and machine operating condition.
Harmonic analysis is performed on torque and radial rotor force to quantify the influence of rotor shaft deflections and hence rotor eccentricity on the frequency content of both torsional and radial electromagnetic excitations. The effect of such excitations on the system NVH response is shown. The presented methodology illustrates how a coupled electromagnetic-mechanical simulation can be used to understand how electromagnetic excitations can penetrate the mechanical system and manifest as structural vibrations of the housing and mounts, leading to airborne and structure borne noise.
Recommended Content
Authors
Topic
Citation
Veggia Bombardi, F., Atallah, K., Shahaj, A., Michon, M. et al., "Effects of Unbalanced Magnetic Pull on NVH Performance of an Electric Drivetrain," SAE Technical Paper 2018-01-1504, 2018, https://doi.org/10.4271/2018-01-1504.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 |
Also In
References
- Gray , A. and Pertsch , J.G. Critical Review of the Bibliography on Unbalanced Magnetic Pull in Dynamo-Electric Machines Proceeding of the American Institute of Electrical Engineers 37 9 1061 1068 1918
- Binns , K.J. and Dye , M. Identification of Principal Factors Causing Unbalanced Magnetic Pull in Cage Induction Motors Proceedings of the Institution of Electrical Engineers 120 3 349 354 1973
- Coulomb , J. A Methodology for the Determination of Global Electromechanical Quantities from a Finite Element Analysis and Its Application to the Evaluation of Magnetic Forces, Torques and Stiffness IEEE Transactions on Magnetics 19 6 2514 2519 1983
- Belmans , R. , Vandenput , A. , and Geysen , W. Influence of Unbalanced Magnetic Pull on the Radial Stability of Flexible-Shaft Induction Machines IEE Proceedings B - Electric Power Applications 134 2 101 109 1987
- Ellison , A.J. and Yang , S.J. Effects of Rotor Eccentricity on Acoustic Noise from Induction Machines Proceedings of the Institution of Electrical Engineers 118 1 174 184 1971
- Michon , M. , Holehouse , R.C. , Atallah , K. , and Johnstone , G. Effect of Rotor Eccentricity in Large Synchronous Machines IEEE Transactions on Magnetics 50 11 1 4 2014
- Michon , M. , Holehouse , R.C. , Atallah , K. , and Wang J. Unbalanced Magnetic Pull in Permanent Magnet Machines 7th IET International Conference on Power Electronics, Machines and Drives (PEMD) Manchester 2014 1 6
- Ruf , A. , Schröder , M. , Putri , A. , Franck , D. et al. Analysis and Determination of Mechanical Bearing Load Caused by Unbalanced Magnetic Pull 17th International Conference on Electrical Machines and Systems (ICEMS) Hangzhou 2014 8 14
- Jiang , J.W. , Bilgin , B. , Sathyan , A. , Dadkhah , H. et al. Analysis of Unbalanced Magnetic Pull in Eccentric Interior Permanent Magnet Machines with Series and Parallel Windings IET Electric Power Applications 10 6 526 538 2016
- Piña Ortega , A.J. and Xu , L. Investigation of Effects of Asymmetries on the Performance of Permanent Magnet Synchronous Machines IEEE Transactions on Energy Conversion 32 3 1002 1011 2017
- Platten , M. Dynamic Simulation of Transmissions and Drivelines Using RomaxDESIGNER SIA Acoustic Simulation Workshop Paris 2011