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http://dx.doi.org/10.3795/KSME-A.2006.30.6.728

Improvement of Sound Quality for the Vehicle HVAC System Using Optimum Layout of Damping Material  

Oh Jae-Eung (한양대학교 기계공학부)
Hwang Dong-Kun (한양대학교 기계공학과)
Park Sang-Gil (한양대학교 기계공학과)
Yoon Tae-Kun (한양대학교 기계공학과)
Sim Hyoun-Jin (한양대학교 기계공학과)
Lee Jung-Youn (경기대학교 기계시스템디자인공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.30, no.6, 2006 , pp. 728-733 More about this Journal
Abstract
The reduction of the Vehicle interior noise has been the main interest of NVH engineers. The driver's perception on the vehicle noise is affected largely by psychoacoustic characteristic of the noise as well as the SPL. In particular, the HVAC sound among the vehicle interior noise has been reflected sensitively in the side of psychology. In previous study, we have developed to verify identification of source for the vehicle HVAC system through multiple-dimensional spectral analysis. Also we carried out objective assessments on the vehicle HVAC noises and subjective assessments have been already performed with 30 subjects. In this study, the linear regression models were obtained for the subjective evaluation and the sound quality metrics. The regression procedure also allows you to produce diagnostic statistics to evaluate the regression estimates including appropriation and accuracy. Appropriation of regression model is necessary to $R^2$ value and F-value. And testing for regression model is necessary to independence, homoscedesticity and normality. Also we selected optimum layout of damping material using Taguchi method. As a result of application, sound quality is improved more quietly, powerfully, even though costly, and smoothly.
Keywords
HVAC; Psychoacoustics; Sound Quality; Regression Analysis; Damping Material; DOE;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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