Tire/road noise separation: tread pattern noise and road texture noise

2020 ◽  
pp. 7-26
Author(s):  
Tan Li
Keyword(s):  
Road Noise ◽  
Pattern Noise

The Study of Tire Pattern Noise by Using Wavelet Transform

2011 ◽  
Vol 105-107 ◽  
pp. 267-270 ◽  
Author(s):  
Sung Wook Hwang ◽  
Jin Hyuk Han ◽  
Ki Duck Sung ◽  
Sang Kwon Lee
Keyword(s):  
Fourier Transform ◽  
Wavelet Transform ◽  
The Other ◽  
Road Noise ◽  
Signal Process ◽  
The Road ◽  
Pattern Noise ◽  
On The Road ◽  
Non Stationary Signal ◽  
The Relationship

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.

The Study of Effectiveness of the Soundproof Wall to Reducing Road Noise in Pusan City

2012 ◽  
Vol 8 (2) ◽  
pp. 219-223
Author(s):  
Meehye Park ◽  
Seohyeon Cheon ◽  
Hwanjin Choi
Keyword(s):  
Road Noise

Development of Input Loads for Road Noise Analysis

2003 ◽  
Author(s):  
Ji-Un Lee ◽  
Jin-Kwan Suh ◽  
Seung-Kab Jeong ◽  
Satish Kandarpa ◽  
Aqil Ahsan ◽  
...  
Keyword(s):  
Noise Analysis ◽  
Road Noise

Pattern noise (PANO): a new automated functional glaucoma test

2017 ◽  
Vol 38 (5) ◽  
pp. 1993-2003 ◽  
Author(s):  
Sylvain el-Khoury ◽  
Thomas Hannen ◽  
Diana Carmen Dragnea ◽  
Faustin Ngounou ◽  
Paul-Rolf Preußner
Keyword(s):  
Pattern Noise

Direct and Indirect Vibro-Acoustic Measurements for Road Noise NVH Predictions

2005 ◽  
Author(s):  
Alessandro Zanarini ◽  
Filip De Coninck ◽  
Krzysztof Mendrok ◽  
Paul Sas
Keyword(s):  
Complex Structure ◽  
Indirect Measurement ◽  
Acoustic Measurements ◽  
Road Noise ◽  
Indirect Measurements ◽  
Direct Measurements ◽  
Path Direction ◽  
Vehicle Technologies ◽  
Structure Measurement ◽  
Reverse Path

This paper describes vibro-acoustic direct and indirect measurements for road noise NVH predictions from a complete car. Attention is devoted to the dynamic response of the structure and interior pressure field toward tire patch displacement inputs. The direct measurements exploited the Team Corporation CUBE™ high frequency 6 degree-of-freedom (DOF) shaker recently installed at the KULeuven Vehicle Technologies Laboratory; the input was provided directly at the tire contact patch, while the responses were measured as accelerations and pressures on the structure. In the indirect measurements a low-mid frequency volume velocity source (LMFVVS) was used to acoustically excite the structure in the reverse path direction from the inside of the interior car cavity, while accelerations on the car and forces/torques where acquired by a 6-DOF dynamometer at the tire patch. From both types of excitations Frequency Response Functions (FRF) were calculated in the frequency range [0–500 Hz]. The non-linearity of the full car system was investigated with different direct and indirect measurement tests, in order to assess the feasibility of the reciprocity principle in such a complex structure. Measurement set-ups, results and comparisons are described and discussed in detail.

Sign in / Sign up

Export Citation Format

Share Document