A validation study of the detachable shell dyno excitation method for structure-borne road noise evaluation

被引：2

作者：

Song, David P. ^{[1
]}

Kang, Yeon June ^{[1
]}

Ih, Kang Duck ^{[2
]}

Schilp, Andreas ^{[3
]}

机构：

[1] Seoul Natl Univ, Sch Mech & Aerosp Engn, Adv Automot Res Ctr, 1 Gwanak Ro, Seoul 151744, South Korea

[2] Hyundai Motor Grp, NVH Res Lab, Seoul, South Korea

[3] Akust Zentrum Lenting, Lenting, Germany

来源：

NOISE CONTROL ENGINEERING JOURNAL | 2018年 / 66卷 / 02期

关键词：

D O I：

10.3397/1/376613

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Road-induced noise within a vehicle is always a relative quantity of its excitation. Therefore, automotive NVH engineers strive to keep the excitation as precise and reproducible as possible when it comes to road noise measurement. To achieve this purpose, a dyno excitation method using precision CNC-milled detachable shell is proposed and its proper operational condition for road noise evaluation is investigated in this article. The proposed dyno excitation method not only enables a highly reproducible matching excitation to the actual proving ground excitation up to 500 Hz, but also circumvents typical unfixed phase relation of the road noise input problem by applying symmetric excitation surfaces between the left and right wheel about the longitudinal axis. Additionally, the influence of the roller diameters on this excitation method is experimentally examined. (C) 2018 Institute of Noise Control Engineering.

引用

页码：142 / 160

页数：19

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