Characterization and Modelling of Mounts for Electric Powertrains
The topic of this paper is to deal with the filtering of medium and high frequency excitations generated by electrified powertrains. It is now recognized that the whining noise generated by the electromagnetic forces and/or the meshing process of the transmission can propagate to the car-body through the rubber mounts. In the design phase, the prediction of the structure borne contribution requires a good knowledge of the dynamic behavior of the rubber mounts. The main issue is the stiffness of the mounts which cannot be modeled as pure springs. In fact, the dynamic behavior of a mount is governed by the material rheology and its internal resonances. The work presented in this paper proposes a simulation workflow for the rubber mounts dynamic model and a methodology for the dynamic stiffness measurement including the sensitivity with the preload and with the amplitude of the excitation. Finally, experimental and digital data are compared to assess the simulation method.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Wojtowicki, Jean-Luc
- Lecuru, Sylvestre
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Conference:
- 12th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference
- Location: Graz , Austria
- Date: 2022-6-22 to 2022-6-24
- Publication Date: 2022-6-15
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 952-964
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Serial:
- SAE Technical Paper
- Volume: 5
- Issue Number: 2
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0148-7191
- EISSN: 2688-3627
- Serial URL: http://papers.sae.org/
Subject/Index Terms
- TRT Terms: Bearings; Elastomers; Engine mounts; Noise; Power trains; Simulation; Springs (Vehicles); Transmissions
- Subject Areas: Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01853176
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2022-01-0986
- Files: TRIS, SAE
- Created Date: Jul 26 2022 2:12PM