A numerical study of passenger side airbag deployment based on arbitrary Lagrangian-eulerian method

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• 作者：XiJun Wang (1)
  Zhi Zong (1)
  Yong Zhao (2)
  Li Zou (1)
  
• 关键词：arbitrary Lagrangian ; eulerian (ALE) method ; passenger side airbags (PAB) ; airbag simulation ; sub ; airbag ; tank test
• 刊名：SCIENCE CHINA Technological Sciences
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：58
• 期：3
• 页码：397-404
• 全文大小：1,486 KB
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• 作者单位：XiJun Wang (1)
  Zhi Zong (1)
  Yong Zhao (2)
  Li Zou (1)
  
  1. School of Naval Architecture Engineering, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China
  2. Transportation Equipment and Ocean Engineering College, Dalian Maritime University, Dalian, 116026, China
  
• 刊物类别：Engineering
• 刊物主题：Chinese Library of Science
  Engineering, general
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1900

文摘

The passenger side airbags (PAB) are usually larger than the driver airbags. Therefore, the inflator of PAB is more powerful with high mass rate. In this paper, an Arbitrary Lagrangian-Eulerian (ALE) method based computational method is developed to simulate the deployment of a PAB. The tank test is used to test the property of the inflator. Through comparison of numerical and experimental results, the ALE method is validated. Based on a failed airbag test, a smaller sub-airbag is placed inside PAB to disperse the gas flow to directions which are less damaging. By applying dynamic relaxation, the initial mesh corresponding to the experimental terms is obtained. The results indicate that the interior pressure and impact force coincide with the test data, and the method in this paper is capable of capturing airbag deploying process of the PAB module accurately.