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NVH and Acoustics Analysis Solutions for Electric Drives
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2016 by SAE International in United States
Annotation ability available
Event: 9th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference
Recently, hybrid and fully electric drives have been developing widely in variety, power and range. The new reliable simulation approaches are needed, in order to meet the defined NVH targets of these systems and implementing CAE methods for front loading, Design Validation Process (DVP).
This paper introduces the application of a novel NVH analysis workflow on an electric vehicle driveline including both electromagnetic and mechanical excitations for an absolute evaluation of the NVH performance. At first, the electromagnetic field is simulated using FEM method to extract the excitations on the stator, rotor bearings as well as the drive torque. Then, the multibody dynamic model of the driveline is built-up, driven by this torque. The effect of eccentricity and skew angle of rotor in electromagnetic excitations are shown. The total NVH response of the system, e.g., the structure normal surface velocity levels are generated by means of a coupled model using Multi-body dynamics and electromagnetic excitations.
CitationMehrgou, M., Zieher, F., and Priestner, C., "NVH and Acoustics Analysis Solutions for Electric Drives," SAE Technical Paper 2016-01-1802, 2016, https://doi.org/10.4271/2016-01-1802.
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