The Study of Tire Pattern Noise by Using Wavelet Transform

Sung Wook Hwang; Jin Hyuk Han; Ki Duck Sung; Sang Kwon Lee

doi:10.4028/www.scientific.net/AMM.105-107.267

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The Spectral Analysis of Vibration Signal on Wire Bonder
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The Study of Tire Pattern Noise by Using Wavelet Transform
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 105-107The Study of Tire Pattern Noise by Using Wavelet...

The Study of Tire Pattern Noise by Using Wavelet Transform

Abstract:

Tire noise is classified by pattern noise and road noise in a vehicle. Especially pattern noise has impulsive characteristics since it is generated by impacting of tire’s block on the road. Therefore, a special signal process is needed other than traditional Fourier Transform, because the characteristic of signal is varying with time. On the other hand, the pattern noise is a kind of non-stationary signal and is related to the impulsive train of pitch sequence of a block. In this paper, Wavelet Transform is applied to verify the impulse signal caused by impact of block and groove and to verify the relationship between the pattern noise and the train of pitch sequence.