[1]王若平,黄杰.基于LMS的怠速状态方向盘振动试验研究[J].郑州大学学报(工学版),2016,37(03):83-87.[doi:10.13705/j.issn.1671-6833.2016.03.019]
　Wang Ruoping,Huang Jie.The study of Vibration test of Steering Wheel under Idling based on LMS TEST.Lab[J].Journal of Zhengzhou University (Engineering Science),2016,37(03):83-87.[doi:10.13705/j.issn.1671-6833.2016.03.019]
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基于LMS的怠速状态方向盘振动试验研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
37
期数:
2016年03期
页码:
83-87
栏目:
出版日期:
2016-05-10

文章信息/Info

Title:
The study of Vibration test of Steering Wheel under Idling based on LMS TEST.Lab
作者:
王若平; 黄杰
江苏大学汽车与交通工程学院,江苏镇江,212013
Author(s):
Wang Ruoping;  Huang Jie
College of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China
关键词:
Keywords:
DOI:
10.13705/j.issn.1671-6833.2016.03.019
文献标志码:
A
摘要:
对某车型轿车进行整车NVH性能主观评价时发现,经过悬置调校后,怠速空调工况下方向盘振动仍过大,影响整车的舒适性.针对此问题,采用LMS TEST.Lab设备对怠速方向盘振动进行测试,初步判断为冷却风扇基频对方向盘抖动有较大影响.运用试验模态分析理论和方法分别对激励源、主要传递路径和响应点进行分析,发现该车冷却模块(CRFM)和方向盘模态参数与冷却风扇基频相一致.试验结果表明:结合整车实际情况,通过改善减振垫结构及调节冷却风扇转速的优化,可使方向盘抖动明显降低.
Abstract:
In the subjective evaluation of the NVH performance of a car model, it was found that after the suspension adjustment, the steering wheel vibration was still too large under the idle air conditioner condition, which affected the comfort of the whole car. Lab equipment was used to test the steering wheel vibration at idle speed, and the preliminary judgment was that the cooling fan fundamental frequency had a greater influence on the steering wheel shaking. Using the experimental modal analysis theory and method to analyze the excitation source, main transmission path and response point respectively, it was found that the cooling module (CRFM) and steering wheel modal parameters of the car were consistent with the cooling fan fundamental frequency. The test results show that the steering wheel shake can be significantly reduced by improving the structure of the damping pad and adjusting the cooling fan speed in combination with the actual situation of the vehicle.

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