Noise Identification for an Automotive Wheel Bearing

In this study, we identified the noise generated from automotive wheel bearings, which has recently emerged as a new problem in electric vehicles. The wheel bearing assembly considered in this study consists of a wheel bearing, dust shield, and knuckle, which are fastened with bolts. To obtain the n...

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Bibliographic Details
Published in:Applied sciences 2022-06, Vol.12 (11), p.5515
Main Authors: Kim, Jaewon, Kwon, Seongmin, Ryu, Seokwon, Lee, Seungpyo, Jeong, Jaeil, Chung, Jintai
Format: Article
Language:English
Subjects:
Automobiles
automotive wheel bearing
Automotive wheels
Ball bearings
bearing defect
Business metrics
Contact angle
Defects
Deformation
Dust
Electric vehicles
Joint ventures
Noise
noise and vibration
Peak frequency
radial deformation
Resonant frequencies
Signal processing
Vibration
Vibration measurement
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Summary:In this study, we identified the noise generated from automotive wheel bearings, which has recently emerged as a new problem in electric vehicles. The wheel bearing assembly considered in this study consists of a wheel bearing, dust shield, and knuckle, which are fastened with bolts. To obtain the noise characteristics of the wheel bearing, the noise and vibration were experimentally measured when the bearing rotated. Additionally, the natural frequencies and mode shapes of the main components of the bearing were acquired via modal testing. By comparing the obtained natural frequencies with the peak frequencies of the measured noise and vibration signals, we identified where the noise radiated. To specifically identify bearing defects, a finite element analysis model was established, and the deformation of the bearing under load was analyzed. Based on the analysis, we determined that the deformation of the outer ring in an outboard row, which resulted from bolt fastening, leads to noise and vibration in the wheel bearing.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12115515