Vibro-Acoustic Response in Vehicle Interior and Exterior Using Multibody Dynamic Systems Due to Cleat Impacts

被引：5
|
作者：
Han, Myeong Jae [1 ]
Lee, Chul Hyung [1 ]
Park, Tae Won [1 ]
机构：
[1] Ajou Univ, Dept Mech Engn, Gyeonggi 16499, South Korea
来源：
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY | 2020年 / 21卷 / 03期
关键词：
Multibody dynamic system; Structural-acoustic coupling; Vibro-acoustics; Vehicle noise; Impact; STRUCTURE-BORNE NOISE; HULL SYSTEM; MODEL; REDUCTION; FORMULATION;
D O I：
10.1007/s12239-020-0056-1
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents the structural vibration and acoustic radiation of a multibody vehicle system in interior and exterior under cleat impact excitations. The entire structure model, which consists of a hyper-elastic tire, a 17-inch lightweight wheel, a rotatable hub, a high-strength knuckle, a control arm and a spring-damper suspension, is a quarter vehicle to simulate transient response when passing through a cleat. The normal acceleration of a vibrating structure surface is applied as an acoustic noise source. A structural-acoustic coupling is employed to consider the interactive effects of the coupled system. The influence of the structure-borne noise can be confirmed by the frequency-correlation analysis between vibration acceleration and acoustic pressure. A sound pressure level (SPL) for near-field radiation is calculated by the finite element method (FEM). In addition, acoustic characteristics such as sound intensity in the passenger cabin are calculated through the boundary element method (BEM). The cleat impact experiment in a hemi-anechoic chamber is presented and validated in detail.
引用
收藏
页码：591 / 602
页数：12
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