• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2020, Vol. 56 ›› Issue (10): 144-153.doi: 10.3901/JME.2020.10.144

• 运载工程 • 上一篇    下一篇

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空气弹簧弹射冲击性能影响因素研究

李玉如1,2, 杨冰1, 谢君科3, 肖守讷1, 阳光武1, 朱涛1, 肖世德2, 柳忠彬3   

  1. 1. 西南交通大学牵引动力国家重点实验室 成都 610031;
    2. 西南交通大学机械工程学院 成都 610031;
    3. 四川轻化工大学机械工程学院 宜宾 644000
  • 收稿日期:2019-07-15 修回日期:2020-03-05 出版日期:2020-05-20 发布日期:2020-06-11
  • 通讯作者: 杨冰(通信作者),男,1979年出生,博士,研究员,博士研究生导师。主要研究方向为结构强度理论与可靠性、材料疲劳与断裂。E-mail:yb@swjtu.edu.cn
  • 作者简介:李玉如,男,1987年出生,博士研究生。主要研究方向为车辆被动安全。E-mail:liyuru@my.swjtu.edu.cn
  • 基金资助:
    国家重点研发计划课题(2016YFB1200403-A03)、四川省科技计划(2019YJ0216)、牵引动力国家重点实验室自主课题(2017TPL_Z01)和四川轻化工大学人才引进(2016RCL23)资助项目。

Study of Influence Factors on Ejection Impact Performance of Air Spring

LI Yuru1,2, YANG Bing1, XIE Junke3, XIAO Shoune1, YANG Guangwu1, ZHU Tao1, XIAO Shide2, LIU Zhongbin3   

  1. 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031;
    2. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031;
    3. School of Mechanical Engineering, Sichuan University of Science & Engineering, Yibin 644000
  • Received:2019-07-15 Revised:2020-03-05 Online:2020-05-20 Published:2020-06-11

摘要: 基于空气弹簧的非线性特性,建立一种流固耦合弹射模型,并通过弹射碰撞试验系统验证模型的准确性。基于该模型,研究初始压强、压缩位移对空气弹簧弹射冲击性能的影响,再现了空气弹簧在弹射过程中的往复振荡现象,同时表明通过调整初始压强和压缩位移能够显著提高弹射冲击性能。进一步,通过改变模型加强筋参数,分析帘线角、帘线层、帘线间距、帘线直径和距中性面距离等参数对空气弹簧弹射冲击性能的影响。结果显示,帘线参数对弹射冲击性能的影响有限,但帘线层数的增加可显著提高空气弹簧稳定性。分析结果有助于拓宽空气弹簧的工程应用范围,促进相关碰撞测试的开展和车辆被动安全性能提升。

关键词: 空气弹簧, 弹射冲击性能, 往复振荡, 帘线参数, 被动安全

Abstract: Based on the nonlinear characteristics of air spring, a fluid-structure coupled ejection model is established, and the accuracy of the model is verified by ejection impact test system. Based on this model, the influence of initial pressure and compression displacement on the ejection impact performance of air spring is studied, and the phenomenon of reciprocating oscillation of air spring in the ejection process is reproduced. It is shown that the ejection impact performance of air spring can be significantly improved by adjusting the initial pressure and the compression displacement. Furthermore, the influence of cord angle, cord layer, cord spacing, cord diameter and distance from the middle surface on the air spring ejection performance is analyzed by changing the parameters of the rebar model. The results show that the influence of cord parameters on ejection impact performance is limited, but the increase of cord layers can improve the stability of air spring effectively. The analysis results are helpful to broaden the engineering application of air spring, promote the development of relevant crash test and improve the passive safety performance of vehicles.

Key words: air spring, ejection impact performance, reciprocating oscillation, cord parameters, passive safety

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