Certification of vehicles used for tire/road noise evaluation by CPX method

2009 ◽  
Vol 57 (2) ◽  
pp. 121 ◽  
Author(s):  
Jerzy A. Ejsmont ◽  
Piotr Mioduszewski
Keyword(s):  
2018 ◽  
Vol 144 (3) ◽  
pp. 1930-1931
Author(s):  
Karolina Marciniuk ◽  
Bozena Kostek

2020 ◽  
Author(s):  
Perry Gu ◽  
Jie Mao ◽  
Zhidong Chen ◽  
Zhi Ding ◽  
Lei Cheng ◽  
...  

1999 ◽  
Vol 47 (4) ◽  
pp. 125-132
Author(s):  
Per V. Bruel
Keyword(s):  

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

Author(s):  
Li Jun ◽  
Li Li ◽  
Zhang Yongxiang ◽  
Chu Zhigang ◽  
Fan Xiaopeng

In China, noise pollution from substations in urban areas is becoming more and more serious. An annoyance evaluation of the noise emitted by urban substations is presented. First, the subjective evaluation is conducted on the noise samples from urban substations via the semantic differential method. Subsequently, according to the typical characteristics of urban substation noise, 14 acoustical metrics are used to describe the noise samples for objective evaluation. Then the correlation analysis and regression analysis between the objective and subjective evaluation results are carried out. Finally, a regression model for urban substation noise evaluation is established. Practical application shows that the regression model can correctly predict the subjective annoyance of urban substation noise.


2012 ◽  
Vol 452-453 ◽  
pp. 1351-1355 ◽  
Author(s):  
Grzegorz Wszołek ◽  
Piotr Czop ◽  
Dawid Jakubowski ◽  
Damian Slawik

The aim of this paper is to demonstrate a possibility to optimize a shock absorber design to minimize level of vibrations with the use of model-based approach. The paper introduces a proposal of an optimization method that allows to choose the optimal values of the design parameters using a shock absorber model to minimize the level of vibrations. A model-based approach is considered to obtain the optimal pressure-flow characteristic by simulations conducted with the use of coupled models, including the damper and the servo-hydraulic tester model. The presence of the tester model is required due to high non-linear coupling of the tested object (damper) and the tester itself to be used for noise evaluation. This kind of evaluation is used in the automotive industry to investigate dampers, as an alternative to vehicle-level tests. The paper provides numerical experimental case studies to show application scope of the proposed method


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

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