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Fixture for High-Frequency Viscoelastic Transfer Path Analysis in Application to Elastomer Sealing Rings in Electric Motors

Schnell, Michael; Gradtke, Marvin; Gauterin, Frank ORCID iD icon

Abstract (englisch):

In this paper, the frequency response functions of rubber o-rings are investigated. A growing trend is the application of electric motors in vehicle powertrains. Electric motors exhibit a different kind of structural dynamic excitation, compared to conventional internal combustion engines. Especially the excitation frequency is multiple times higher, as in combustion engines. This increased excitation frequency is a novel requirement on materials and their modelling in simulations. For this case, a novel fixture is introduced, which constrains the rubber o-ring components in their designated conditions and which allows to perform a Transfer-Path-Analysis up to a frequency of 6.5 kHz. The evaluation of the results shows a high coherence throughout the considered frequency range, while using a high-frequency miniature shaker. The structural resonances are clearly visible and the signal noise is low. This proves the suitability of the presented fixture, in combination with the high-frequency miniature shaker. The results presented and the fixture itself serve as a basis for further work and developments.


Verlagsausgabe §
DOI: 10.5445/IR/1000132654
Veröffentlicht am 12.05.2021
Originalveröffentlichung
DOI: 10.3390/vibration4020027
Scopus
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Fahrzeugsystemtechnik (FAST)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2571-631X
KITopen-ID: 1000132654
Erschienen in Vibration
Verlag MDPI
Band 4
Heft 2
Seiten 414–421
Bemerkung zur Veröffentlichung Gefördert durch den KIT Publikationsfonds
Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 08.05.2021
Schlagwörter elastomer; viscoelastic; FRF; frequency-response; TPA (transfer-path analysis); NVH; electric motor; vibration; sealing; testing; high frequency
Nachgewiesen in Dimensions
Scopus
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