摘要
采用大型外置气囊作为主要消能结构,结合传统避险车道结构,提出新型气囊式避险车道;运用大型有限元分析软件ABAQUS/Explicit对大货车冲入避险车道的过程进行模拟,将气囊定义为流体腔,对比不同工况下气囊的消能效果,确定一组速度与气压的最佳组合,并对车辆和气囊的损伤程度做出判断;数值模拟结果说明新型气囊式避险车道的可行性。
The large-sized external airbag was used as the main energy-dissipating structure,and the new airbag-type emergency lane was proposed in combination with the traditional emergency lane structure.The large-scale finite element analysis software ABAQUS/Explicit was used to simulate the process of large trucks entering the emergency lane.The airbag was defined as fluid cavity,and the energy dissipation effect of the airbag under different working conditions was compared.A set of the optimal combination of speed and air pressure was determined,and the damage degree of vehicle and airbag was judged.The numerical simulation results indicate the feasibility of new airbag-type emergency lane.
作者
徐建国
冯越
XU Jianguo;FENG Yue(College of Water Conservancy and Environment,Zhengzhou University,Zhengzhou 450001,Henan,China)
出处
《重庆交通大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第12期94-98,共5页
Journal of Chongqing Jiaotong University(Natural Science)
基金
2018年度郑州大学大学生创新创业训练计划项目(2018cxcy282)。
关键词
道路工程
避险车道
有限单元法
气囊
数值模拟
highway engineering
emergency lane
finite element method
airbag
numerical simulation
