Page 54 - 《应用声学》2024年第6期

第 43 卷 第 6 期 Vol. 43, No. 6
2024 年 11 月 Journal of Applied Acoustics November, 2024

⋄ 研究报告 ⋄

某车型关门时安全带卷收器异响问题分析和优化

张 浩 † 饶 刚 高小清 屈少举 邓 休

(东风汽车集团股份有限公司技术中心 武汉 430056)

摘要：针对某车型在关门时车内出现的振颤异响问题，识别车内异常噪声产生原因为关门产生振动激励，经车
身和安全带卷收器固定支架传递至卷收器本体，并引起卷收器内部异响。建立了车身和卷收器的系统动力学
模型，分析了卷收器安装支架对振动传递特性的影响，完成了卷收器单体在台架上响度随频率变化的试验，获
得了卷收器单体噪声的敏感频率。通过合理优化卷收器安装支架刚度，将振动传递峰值与卷收器敏感频率避
开，有效地改善了异响问题，为同类问题的分析和优化提供了参考。
关键词：关门；卷收器；异响；振动传递
中图法分类号: TB535 文献标识码: A 文章编号: 1000-310X(2024)06-1230-06
DOI: 10.11684/j.issn.1000-310X.2024.06.005

Analysis and optimization on abnormal noise caused by retractor when closing
the door of a vehicle

ZHANG Hao RAO Gang GAO Xiaoqing QU Shaoju DENG Xiu

(Dong Feng Motor Corporation Technical Center, Wuhan 430056, China)

Abstract: Aiming at the issue of vibration and abnormal noise of a certain vehicle when closing the door,
which was identified the cause was the vibration excitation generated by closing the door, then transmitted
to the retractor through the body and seat belt bracket, and caused abnormal noise inside the retractor. A
system dynamics model of the vehicle body and the retractor was established, and the impact of the installation
bracket of the retractor on vibration transmission characteristics was analyzed. The loudness test of the belt
retractor was completed with sweep excitation, and obtained the sensitive frequency of the belt retractor. By
reasonably designed the stiffness of the seat belt bracket of the retractor, the vibration transmission peak
is avoided from the sensitive frequency of the retractor, and the problem of abnormal noise is significantly
improved. It provides a reference for the analysis and optimization of similar problems.
Keywords: Closing the door; Retractor; Abnormal noise; Vibration transmission

2023-06-14 收稿; 2023-08-09 定稿
作者简介: 张浩 (1991– ), 男, 重庆云阳人, 硕士, 研究方向: 车辆振动与噪声控制。
† 通信作者 E-mail: zhanghao_0803@163.com