TY - GEN

T1 - Influence of Round Wire Winding and Insulation on the Vibration Behavior of Electric Machines

AU - Gerlach, Martin Enno

AU - Bender, Tim Niklas

AU - Ponick, Bernd

N1 - Funding Information: Degrees of freedom Order of eigenmode Deflection Poisson’s ratio Lehr’s damping factor Density Fill factor Normalized eigenvector Eigenvector Angular frequency Angular eigenfrequency of order r Supported by: Federal Ministry of Economic Affairs and Energy on the basis of a decision by the German Bundestag.

PY - 2022

Y1 - 2022

N2 - The prediction of the vibration behavior is one crucial part of the design process for electric machines. The impact of the winding and the insulation on the stator's eigenfrequencies, eigenmodes and damping is not sufficiently analyzed. In this paper, the influence of a round wire winding and two different insulation techniques on the vibration behavior is studied. A methodology is presented to compare the measurement results of an experimental modal analysis with the simulation results of an FEM harmonic analysis. The vibration behavior of a blank stator lamination, a stator lamination with an uninsulated winding, an impregnated winding and a potted winding are analyzed. To determine equivalent material parameters for the slot filling, consisting of copper conductors and insulation material, the simulation and measurement results are compared. The Young's modulus of the slot filling E is identified by performing a parameter fitting. The Sum-Transfer functions, the eigenfrequencies, the damping and the eigenmodes are presented for the measurement and the simulation with the determined equivalent material parameters. The equivalent material parameters can be used for future calculations.

AB - The prediction of the vibration behavior is one crucial part of the design process for electric machines. The impact of the winding and the insulation on the stator's eigenfrequencies, eigenmodes and damping is not sufficiently analyzed. In this paper, the influence of a round wire winding and two different insulation techniques on the vibration behavior is studied. A methodology is presented to compare the measurement results of an experimental modal analysis with the simulation results of an FEM harmonic analysis. The vibration behavior of a blank stator lamination, a stator lamination with an uninsulated winding, an impregnated winding and a potted winding are analyzed. To determine equivalent material parameters for the slot filling, consisting of copper conductors and insulation material, the simulation and measurement results are compared. The Young's modulus of the slot filling E is identified by performing a parameter fitting. The Sum-Transfer functions, the eigenfrequencies, the damping and the eigenmodes are presented for the measurement and the simulation with the determined equivalent material parameters. The equivalent material parameters can be used for future calculations.

KW - acoustic noise

KW - damping

KW - eigenfrequencies

KW - eigenmodes

KW - experimental modal analysis

KW - FEM modal analysis

KW - material modelling

KW - vibration

KW - vibration calculation

KW - winding

UR - http://www.scopus.com/inward/record.url?scp=85136204956&partnerID=8YFLogxK

U2 - 10.1109/SPEEDAM53979.2022.9842194

DO - 10.1109/SPEEDAM53979.2022.9842194

M3 - Conference contribution

AN - SCOPUS:85136204956

T3 - 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022

SP - 7

EP - 13

BT - 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, SPEEDAM 2022

Y2 - 22 June 2022 through 24 June 2022

ER -