华南理工大学学报(自然科学版) ›› 2017, Vol. 45 ›› Issue (2): 23-29,38.doi: 10.3969/j.issn.1000-565X.2017.02.004

• 汽车工程 • 上一篇    下一篇

基于振动功率流法的汽车悬架系统隔振性能分析

上官文斌1 陈成峰1 李利平1 俞宏2 祁振宁2   

  1. 1. 华南理工大学 机械与汽车工程学院,广东 广州 510640; 2. 宁波拓普集团股份有限公司,浙江 宁波 315800
  • 收稿日期:2016-09-27 修回日期:2016-10-30 出版日期:2017-02-25 发布日期:2016-12-31
  • 通信作者: 上官文斌( 1963-) ,男,博士,教授,主要从事汽车振动分析与控制研究. E-mail:shangguanwb99@tsinghua.org.cn
  • 作者简介:上官文斌( 1963-) ,男,博士,教授,主要从事汽车振动分析与控制研究.
  • 基金资助:

    国家自然科学基金重点资助项目( 51275175)

Analysis of Vibration Isolation Performances of Vehicle Suspension System Based on Vibrational Power Flow Method

SHANGGUAN Wen-bin1 CHEN Cheng-feng1 LI Li-ping1 YU Hong2 QI Zhen-ning2   

  1. 1,School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Ningbo Tuopu Group Co.,Ltd.,Ningbo 315800,Zhejiang,China
  • Received:2016-09-27 Revised:2016-10-30 Online:2017-02-25 Published:2016-12-31
  • Contact: 上官文斌( 1963-) ,男,博士,教授,主要从事汽车振动分析与控制研究. E-mail:shangguanwb99@tsinghua.org.cn
  • About author:上官文斌( 1963-) ,男,博士,教授,主要从事汽车振动分析与控制研究.
  • Supported by:
    Supported by the Key Program of National Natural Science Foundation of China( 51275175)

摘要: 为优化衬套和车身车架的结构,建立汽车悬架系统衬套和减振器上端支撑的隔振分析模型,推导了各子结构间连接点处力和位移向量的表达式; 在路面不平度激励下,运用振动功率分析方法,介绍了经由悬架各个衬套传递到车身车架的功率计算方法; 以一麦弗逊悬架为例,利用ADAMS 软件建立了其多体动力学模型,计算分析了在路面激励下经悬架衬套和减振器上端支撑传递到车身车架的功率,从而识别出振动能量传递的最大路径; 最后,基于该方法分析了衬套特性对功率传递的影响,并就一液压衬套对车辆侧向激励引起的车身振动的衰减作用进行了分析.

关键词: 汽车悬架系统, 衬套, 减振器, 振动功率流, 传递路径, 隔振性能

Abstract:

In order to optimize the bushing and structure of vehicle body,a vibration isolation analysis model for the bushing and the top mount of vehicle suspension system is established,and the expressions of force and displacement vector at each join point between two substructures are decuced.Then,by using the vibration power transmission analysis method,a method is presented to calculate the power transmitting to the vehicle body under the road excitation through each bushings.Moreover,by taking a typical Macpherson suspension as the example,a multi-body dynamic model of the suspension is established with ADAMS software,and the power transmitting to the vehicle body through each bushing and top mount is calculated and analyzed,which helps to identify the maximum power transmission path.Finally,the influence of bushing characteristics on the power transmission is analyzed,and the effect of a hydraulic bushing on the vibration damping of vehicle body caused by the lateral excitation is discussed.

Key words: vehicle suspension system, bushing, vibration damper, vibration power flow, transfer path, vibration isolation performance

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