汽车侧气囊动态冲击试验仿真
PDF下载 (536)任忠波 1,钟 原 2,刘 军 1*,吴 鑫 1,党雪芒 1.汽车侧气囊动态冲击试验仿真[J].宁波大学学报(理工版),2016,29(2):77-80.DOI:
REN Zhong-bo 1,ZHONG Yuan 2,LIU Jun 1*,WU Xin 1,DANG Xue-mang 1.Dynamic Impact Test for Side Airbag: Numerical Simulation[J].Journal of Ningbo University(Natural Science & Engineering Edition),2016,29(2):77-80.DOI:
| Title: | Dynamic Impact Test for Side Airbag: Numerical Simulation |
| 作者: | 任忠波 1, 钟 原 2, 刘 军 1*, 吴 鑫 1, 党雪芒 1 |
| Author(s): | REN Zhong-bo 1, ZHONG Yuan 2, LIU Jun 1*, WU Xin 1, DANG Xue-mang 1 |
| 关键词: | 有限元方法; 侧气囊; 动态冲击试验; 控制体积法 |
| Keywords: | numerical simulation; side airbag; dynamic impact test; control volume method |
| 分类号: | U491.6 |
| 文献标识码: | A |
| 摘要: | 通过侧安全气囊的动态冲击试验, 优化了仿真模型的参数, 并在此基础上讨论了不同速度和不同气孔参数情况下, 侧安全气囊对乘员的保护性能. 使用LS-DYNA提供的Hybrid模型模拟侧气囊的点爆, 分析了气囊排气孔的气体流动数学模型, 也对冲击槌与气囊的冲击模型进行了介绍. 试验与仿真结果数据对比后表明, 在一定碰撞速度范围内, 侧气囊具有良好的保护作用, 并且气孔对侧气囊有相关影响. |
| Abstract: | The author uses the Hybrid model based on LS-DYNA to activate the side airbag, and to analyze the model of choked flow through an orifice, as well as describe the impact model of impactor and airbag. By comparing the test and simulation results, the reliability of the numerical model is validated, and it also suggests that the side airbag provides a good protection in a certain crash speed range, and the effectiveness of buffer action with different vent orifice area is satisfying. |
| 参考文献 /References: | [1] 吴奕娴, 吴光强. 安全气囊展开数字仿真研究方法综述[J]. 汽车科技, 2011, 1(1):12-16. [2] LSTC. LS-DYNA theoretical manual[R]. Version 971, 2014. [3] LSTC. LS-DYNA user’s Manual[R]. Version 971, 2014. [4] MICHEL A S. Compressible fluid flow[M]. 2nd Ed. London: Prentice Hall Presses, 1992. [5] EISENREICHA N, NEUTZ J. Airbag for the closing of pipelines on explosions and leakages[J]. Journal of Loss Prevention in the Process Industries, 2007, 20:589-598. [6] WANG J T. An analytical model for an airbag with a hybrid inflator[J]. Crashworthiness Occupant Protection in Transprotation System, 1995, 30:467-497. [7] KHAN M U, MOATAMEDI M. A review of airbag test and analysis[C]. 10th International LS-DYNA Users Conference, 2008. |
| 备注/Memo: | 收稿日期: 2014－09－16. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/基金项目: 国家自然科学基金（11372148）; 浙江省新苗人才计划（A00161114200）.第一作者: 任忠波（1988－）, 男, 黑龙江牡丹江人, 在读硕士研究生, 主要研究方向: 气囊及乘员约束系统. E-mail: rentony@hotmail.com*通信作者: 刘军（1963－）, 男, 江苏苏州人, 副教授, 主要研究方向: 冲击动力学. E-mail: liujun@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
