Page 139 - 《应用声学》2022年第5期

第 41 卷 第 5 期 Vol. 41, No. 5
2022 年 9 月 Journal of Applied Acoustics September, 2022

⋄ 研究报告 ⋄

时域传递路径分析在路噪声品质开发中的应用 ∗

毛 杰 1,2,3† 陈志东 3 邱 毅 2 周昌水 3 张亚楠 3 姚再起 3

(1 浙江吉利控股集团有限公司汽车工程学院 杭州 310000)
(2 浙江大学能源工程学院 杭州 310027)
(3 吉利汽车研究开发宁波有限公司 宁波 315336)

摘要：基于某 SUV 在 30∼40 Hz 频段的路噪声品质问题，采用时域传递路径分析方法进行了问题的研究，并通
过传递路径分析分解确定主要贡献来自于后副车架安装点的 Z 向。采用 CAE 方法完成了主路径噪声传递函
数的优化，通过尾门的结构优化降低噪声传递函数，使得 30∼40 Hz 的路噪降低了约 4 dB。采用声音回放技术
完成了 CAE 优化方案的主观评价，评价通过后再进行实车验证，提高开发效率。
关键词：时域传递路径分析；路噪；声品质；试验 -仿真混合法
中图法分类号: TB532 文献标识码: A 文章编号: 1000-310X(2022)05-0815-07
DOI: 10.11684/j.issn.1000-310X.2022.05.017

Road noise sound quality development by time-domain transfer path analysis

MAO Jie 1,2,3 CHEN Zhidong 3 QIU Yi 2 ZHOU Changshui 3 ZHANG Yanan 3 YAO Zaiqi 3

(1 Zhejiang Automotive Engineering Institute, Zhejiang Geely Holding Group, Hangzhou 310000, China)
(2 College of Energy Engineering, Zhejiang University, Hangzhou 310027, China)
(3 Geely Automobile Research Institute, Ningbo 315336, China)

Abstract: For a road noise sound quality issue of an SUV, time-domain transfer path analysis (TPA) was
used to study the issue. TPA composition was introduced to determine that the issue was mainly contributed
by the rear subframe from the Z direction. Then CAE technology was adopted to analyze root cause of
noise transfer function (NTF) peak of main contribution paths. The NTF peak was reduced by the tailgate
structure optimization, which decreased 4 dB for the road noise in 30–40 Hz. Sound playback technology was
used to subjectively evaluate the CAE optimization design. Then the tailgate optimization was validated by
experiment, which improved the development efficiency.
Keywords: Time-domain transfer path analysis; Road noise; Sound quality; Hybrid test-CAE method

2021-08-04 收稿; 2021-11-30 定稿
国家重点研发计划项目 (2020YFB1709400)
∗
作者简介: 毛杰 (1987– ), 男, 浙江余姚人, 博士, 研究方向: 整车 NVH 仿真开发与控制。
† 通信作者 E-mail: maojie1987@zju.edu.cn