摘要
对车辆与弯道混凝土护栏碰撞动态数值模拟结果和实车足尺碰撞试验结果进行对比分析,从车辆行驶轨迹、乘员冲击加速度以及车辆损伤形态3个方面,验证了动态数值模拟的准确性,并分析了弯道混凝土护栏曲线半径对乘员碰撞过程中所承受冲击加速度的影响;得到乘员风险的最不利护栏半径。结果表明:有限元仿真是进行汽车护栏碰撞研究的有效方法;弯道处护栏的形式对碰撞时乘员的安全有很大影响。
Through comparison analysis between dynamic numerical simulation result for vehicle and curved concrete barriers crash and field vehicle full scale crash tests, accuracy of dynamic numerical simulation results was verified through 3 aspects. Authors analyzed influence of curved concrete barriers curve radius on impact acceleration in process of occupant crash. Barriers type of curved rail has huge influence on occupant safety in crash. The worst barrier radius for occupant risk was got. The results show that finite element simulation is an effective method for vehicle and barriers crash research.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2007年第1期102-106,共5页
China Journal of Highway and Transport
基金
国家西部交通建设科技项目(200131800056)
关键词
交通工程
车辆碰撞
实车足尺碰撞试验
弯道混凝土护栏
有限元模拟
乘员安全
traffic engineering
vehicle crash
field vehicle full scale crash test
curved concrete barrier
finite element simulation
occupant safety
