汽车工程 ›› 2021, Vol. 43 ›› Issue (2): 287-295.doi: 10.19562/j.chinasae.qcgc.2021.02.018

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考虑气液混合流体时变特性的阀片式液压互联悬架建模

谭博欢1,林祥1,张邦基1(),郭春杰2,张农1,3   

  1. 1.湖南大学,汽车车身先进设计制造国家重点实验室,长沙 410082
    2.博戈橡胶塑料(株洲)有限公司,株洲 412000
    3.合肥工业大学汽车与交通工程学院,合肥 230009
  • 收稿日期:2020-06-05 修回日期:2020-10-09 出版日期:2021-02-25 发布日期:2021-03-04
  • 通讯作者: 张邦基 E-mail:bangjizhang@hnu.edu.cn
  • 基金资助:
    国家自然科学基金(5187051675)

Modeling of Shim Valve Type Hydraulically Interconnected Suspension Considering the Time⁃varying Characteristics of Gas⁃liquid Emulsion

Bohuan Tan1,Xiang Lin1,Bangji Zhang1(),Chunjie Guo2,Nong Zhang1,3   

  1. 1.Hunan University,State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body,Changsha 410082
    2.BOGE Rubber & Plastics Zhuzhou Co. ,Ltd. ,Zhuzhou 412000
    3.School of Automotive and Transportation Engineering,Hefei University of Technology,Hefei 230009
  • Received:2020-06-05 Revised:2020-10-09 Online:2021-02-25 Published:2021-03-04
  • Contact: Bangji Zhang E-mail:bangjizhang@hnu.edu.cn

摘要:

针对液压互联悬架中气液混合流体对悬架系统特性的影响,推导了气液混合流体物理性质的时变特性模型,提出一种非线性形变修正函数,用以修正所建立的阻尼阀阀片变形等效模型,从而建立了一种考虑气液混合流体时变特性的阀片式单缸液压互联悬架非线性动力学模型,并通过台架试验加以验证。仿真结果表明:气液混合流体时变特性会导致液压互联悬架系统阻尼特性曲线出现明显的“迟滞”现象,并降低阻尼力的峰值,与试验结果对比显示,所提出的建模方法能准确描述“迟滞”现象,且与台架试验结果基本吻合。

关键词: 液压互联悬架, 气液混合流体, 阻尼阀, 迟滞, 台架试验

Abstract:

In view of the effects of gas?liquid emulsion in hydraulically interconnected suspension (HIS) system, a time?varying characteristics model for the physical properties of gas?liquid emulsion is derived, a nonlinear deformation correction function is proposed for correcting the equivalent shim deformation model built for damping valve and hence a nonlinear dynamics model of valve?type single ?cylinder HIS system considering the time?varying characteristics of gas?liquid emulsion is established and then verified by bench test. The results of simulation show that the time?varying characteristics of gas?liquid emulsion may lead to the appearance of the “hysteresis” phenomenon on the characteristic curve of HIS system with reduced damping force peak. The comparison with test results demonstrates that the modeling method proposed can accurately describe the “hysteresis” phenomenon with a result basically agreeing with test one.

Key words: hydraulically interconnected suspension, gas?liquid emulsion, damping valve, hysteresis, bench test