[1]刘伟①②,陈樊①②,石俊涛①②,等.烟火式气体发生器燃烧过程的数值模拟和试验研究[J].爆破器材,2017,46(01):24-28，33.[doi:10.3969/j.issn.1001-8352.2017.01.005]
　LIU Wei,CHEN Fan,SHI Juntao,et al.Numerical Simulation and Experimental Study on the Combustion Process for a Pyrotechnic Airbag Inflator[J].EXPLOSIVE MATERIALS,2017,46(01):24-28，33.[doi:10.3969/j.issn.1001-8352.2017.01.005]
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烟火式气体发生器燃烧过程的数值模拟和试验研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
46
期数:
2017年01
页码:
24-28，33
栏目:
基础理论
出版日期:
2017-01-10

文章信息/Info

Title:
Numerical Simulation and Experimental Study on the Combustion Process for a Pyrotechnic Airbag Inflator
文章编号:
5088
作者:
刘伟①②; 陈樊①②; 石俊涛①②; 姚俊①②; 屈纯①②; 张宁①②
①航天科技集团公司四院四十二研究所(湖北襄阳,441003）
②湖北省应急救生与安全防护重点实验室(湖北襄阳,441003）
Author(s):
LIU Wei①②;  CHEN Fan①②;  SHI Juntao①②;  YAO Jun①②;  QU Chun①②;  ZHANG Ning①②
① 42nd Institute of the Forth Academy of CASC (Hubei Xiangyang, 441003)
② Key Laboratory of Emergency Safety and Rescue Technology of Hubei Province (Hubei Xiangyang, 441003)
关键词:
烟火式; 气体发生器; 燃烧过程; 数值计算
Keywords:
pyrotechnic;  airbag inflator;  combustion processes;  numerical simulation
分类号:
TJ45;TQ567.8
DOI:
10.3969/j.issn.1001-8352.2017.01.005
文献标志码:
A
摘要:
建立了理论模型模拟烟火式气体发生器的燃烧过程，基于质量守恒、能量守恒、气体状态方程、气体发生剂的几何燃烧规律以及小孔气体流量规律，还考虑了与过滤网以及壳体的散热损失，获得了数值模拟的内压曲线和压力罐曲线，并与试验结果进行对比分析，证实了模拟结果的准确性。结果表明：燃速压力指数越大，发生器达到最大内压的时间越短，最大压力越高；气体发生剂厚度越小，发生器压力上升越快，最大压力越高，达到最大压力的时间越短；装药量越大，发生器压力上升得越快，最大压力越高，达到最大压力的时间越短；排气孔直径越大，最大压力越小，达到最大压力的时间越长。为烟火式气体发生器的设计提供了理论依据。
Abstract:
A theoretical model was proposed to simulate the combustion process in a pyrotechnic airbag inflator. It was based on mass, energy conservation equations, ideal gas equation of state, geometry combustion law of propellant and flowrate law of small gas vent. Heat transfer between the gas and the walls of the combustion chamber and the filter was also considered. Internal pressure curves and tank pressure curves were obtained. Numerical simulation results were compared with experiments to ensure the accuracy of the model.Results show that higher burning rate causes shorter time to reach the maximum pressure and higher maximum pressure. Thinner gas generator results in higher rising rate of pressure, shorter time reaching the maximum pressure and higher maximum pressure. The lager gas generator charge mass results it reaches the maximum pressure more quickly and higher maximum pressure while the larger nozzle area results in the maximum pressure more slowly and lower maximum pressure. It can provide references to design and research of the pyrotechnic airbag inflators.

参考文献/References:

［1］宋健，王伟玮，李亮,等.汽车安全技术的研究现状和展望［J］.汽车安全与节能学报，2010，1(2)：98-106.
SONG J, WANG W W, LI L, et al.Research status and prospects of automotive safety technology［J］. Journal of Automotive Safety and Engergy,2010,1(2)：98-106.
［2］WANG J T， NEFSKE D J. A new CAL3D airbag inflation model［J］. SAE Technical Paper 880654，1988,doi:10.4271/880654.
［3］WANG J T， LIN K H. A CAL3D steering system impact model［J］. SAE Technical Paper 880650，1988,doi:10.4271/880650.
［4］METERNA P. Advances in analytical modeling of airbag inflators［J］. SAE Technical Paper 920120，1992,doi:10.4271/920120.
［5］BUTLER P B， KRIER H, FAIGLE E,et al. Numerical simulation of passenger-side automotive airbag inflator［J］. SAE Technical Paper 920848， 1992,doi:10.4271/920848.
［6］BUTLER P B，KANG J，KRIER H. Modeling and numerical simulation of the internal thermochemistry of automotive airbag inflators［J］. Progress in Energy Combustion Science，1993,19(5)：365-382.
［7］SEO Y D，CHUNG S H，YOH J J. Automotive airbag inflator analysis using the measured properties of modern propellants［J］.Fuel，2010,18(6):1395-1401.
［8］ALKAM M K，BUTLER P B. Thermal simulation of a pyrotechnic solid-propellant gas generator［J］.Jordan Journal of Mechanical and Industrial Engineering，2009，3(3):198-205.
［9］ULAS A， RISHA G A，KUO K. Ballistic properties and burning behavior of an ammonium perchlorate/guanidine nitrate/sodium nitrate airbag solid propellant［J］.Fuel，2006，85(14/15):1979-1986.
［10］黄寅生.汽车安全气囊的药剂燃烧特性实验研究与数值模拟［D］.南京：南京理工大学，1996.
［11］成一，陈守文.烟火式气体发生器燃烧室喷嘴的设计与研究［J］.汽车技术，2002（7）:20-22.
 CHENG Y,CHEN S W.Design and study of nozzle of firework type gas generator combustion chamber［J］.Automobile Technology,2002(7):20-22.
［12］周奎军.汽车安全气囊气体发生器的研究［D］.南京：南京理工大学，2007.
［13］周彦煌，王升晨.实用两相流内弹道学［M］.北京：兵器工业出版社，1990.
［14］翁春生，王浩.计算内弹道学［M］.北京：国防工业出版社，2006.
［15］金志明，袁亚雄，宋明.现代内弹道学［M］.杭州：浙江教育出版社，1992.

备注/Memo

备注/Memo:
收稿日期：2016-03-22
作者简介：刘伟（1989－），男，硕士研究生，研究方向为安全气囊气体发生器。E-mail：368129967@qq.com
通信作者：姚俊（1973－），男，研究员，硕士研究生，研究方向为安全气囊气体发生剂/器。E-mail：inflatorglobal@163.com
更新日期/Last Update: 2017-01-09