噪声与振动控制2019，Vol.39Issue(2)：81-84,127,5.DOI:10.3969/j.issn.1006-1355.2019.02.015
汽车加速通过噪声室内预测方法研究
Research on Indoor Prediction Method of Accelerating Passing-by Noise of Vehicles
陈剑 1王开明 2刘策 1殷金祥 1邓厚科 3宋文凤3
作者信息
- 1. 合肥工业大学 噪声振动工程研究所,合肥 230009
- 2. 安徽省汽车NVH工程技术研究中心,合肥 230009
- 3. 安徽江淮汽车股份有限公司技术中心,合肥 230601
- 折叠
摘要
Abstract
Since the International Organization for Standardization issued the international standard ISO 362-1:2007 for vehicles accelerating passing-by noise (PBN) measurement, several problems, such as the higher testing requirements, the increase of difficulty in measurement and the lower qualification ratio of data, have appeared. These problems have puzzled the technicians and engineers for outdoor surveying. In this paper, the time domain signal of indoor PBN is obtained through time signal synthetic algorithm. The tire noise-speed relation curve is obtained by testing the tire on the road and the chassis dynamometer. By means of the synthetic algorithm, the indoor tire noise is replaced by the outdoor tire noise, and the equivalent value of the outdoor PBN is calculated. Then, this method is applied to the outdoor PBN test of vehicles of M2 and N2 categories. It shows that the PBN error between the equivalent results and the outdoor measured values is within 1 dB (A), and over 40 % testing time is saved. This method is applicable to PBN measurement for the vehicles of M2 and N2 categories, which is of high engineering application value.关键词
声学/通过噪声/声阵列合成/轮胎噪声/等效替换Key words
acoustics/ passing-by noise/ microphone arrays synthesis/ tire noise/ equivalent replacement分类
交通工程引用本文复制引用
陈剑,王开明,刘策,殷金祥,邓厚科,宋文凤..汽车加速通过噪声室内预测方法研究[J].噪声与振动控制,2019,39(2):81-84,127,5.
