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第 42 卷 第 1 期                                                                       Vol. 42, No. 1
             2023 年 1 月                          Journal of Applied Acoustics                   January, 2023

             ⋄ 研究报告 ⋄



                              基于传递路径的变速箱噪声分析






                                         石教华      †  罗 挺 田 鑫              刘 年


                                            (东风汽车集团有限公司技术中心         武汉   430058)

                摘要：变速箱噪声是常见的噪声问题。该文建立了变速箱噪声的传递路径分析模型，分析得出左传动轴是某
                车型变速箱阶次噪声的主要传递路径。研究左传动轴的振动传递特性并开展模态试验分析，识别出传动轴弯
                曲模态和问题频率耦合。通过增加吸振器降低了传动轴的响应，并开展道路试验和主观评价，表明问题得到有
                效解决。
                关键词：变速箱噪声；传递路径；传动轴
                中图法分类号: TB535           文献标识码: A          文章编号: 1000-310X(2023)01-0051-06
                DOI: 10.11684/j.issn.1000-310X.2023.01.007





                       Study of transmission gear noise based on transfer path analysis



                                      SHI Jiaohua LUO Ting TIAN Xin LIU Nian

                                  (Dongfeng Motor Corporation Technology Center, Wuhan 430058, China)

                 Abstract: Transmission noise is a common problem in vehicle NVH. In this paper, the transfer path analysis
                 model of transmission noise is established, and it’s found that the left transmission shaft is the main transfer
                 path of this problem. By studying the vibration transmissibility of the left drive shaft, the vibration of the
                 gearbox is amplified by the left drive shaft. The vibration transmissibility of the transmission shaft is reduced
                 by adding a vibration absorber. Subjective evaluation and road test show that the gear whine noise is improved
                 significantly.
                 Keywords: Transmission noise; Transfer path; Drive shaft


















             2021-11-13 收稿; 2022-01-18 定稿
             作者简介: 石教华 (1986– ), 男, 湖北阳新人, 硕士, 研究方向: 汽车噪声与振动。
             † 通信作者 E-mail: shijh@dfmc.com.cn
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