主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2021, Vol. 46 ›› Issue (15): 105-107.DOI: 10.16638/j.cnki.1671-7988.2021.015.029

• 测试试验 • 上一篇    下一篇

液压衬套力学特性对汽车传递特性的影响

燕东旺, 田国红, 秦玉英   

  1. 辽宁工业大学 汽车与交通工程学院,辽宁 锦州 121000
  • 出版日期:2021-08-15 发布日期:2021-08-20
  • 作者简介:燕东旺,硕士研究生,就读于辽宁工业大学汽车与交通工程学院,研究方向：汽车NVH特性。
  • 基金资助:
    主动悬架控制策略及整车建模与性能分析研究（JJL201915411）

Influence of Mechanical Characteristics of Hydraulic Bushing on Vehicle Transmission Characteristics

YAN Dongwang, TIAN Guohong, QIN Yuying   

  1. Liaoning University of Technology, School of Automotive and Traffic Engineering, Liaoning Jinzhou 121000
  • Online:2021-08-15 Published:2021-08-20

PDF

摘要： 根据液压衬套能在低频率、高振幅的振动情况下提供大刚度和大阻尼这一特点,文章基于Matlab软件在经典七自由度振动模型的基础上建立了包含液压衬套力学的七自由度模型,并介绍了传递特性,最后通过对比两个模型的车身垂直加速度功率谱密度曲线、轮胎动载荷曲线、悬架动行程曲线,验证了包含液压衬套的七自由度模型更能准确地描述汽车振动传递特性。

关键词: 液压衬套动态特性, Matlab, 七自由度模型, 传递特性, 平顺性

Abstract: According to the characteristic that the hydraulic bushing can provide large stiffness and damping under the condition of low frequency and high amplitude vibration, this paper establishes a seven degree of freedom model including hydraulic bushing mechanics based on the classical seven degree of freedom vibration model based on Matlab software, and introduces the transmission characteristics. Finally, by comparing the body vertical acceleration power spectral density curve and tire dynamic load of the two models, the results show that the seven degree of freedom model with hydraulic bushing can describe the vehicle vibration transmission characteristics more accurately.

Key words: Dynamic characteristics of hydraulic bushing, Matlab, Seven degree of freedom model, Transitive properties, Ride comfort

中图分类号: