摘要
针对车辆的碰撞事故,需设计安全的吸能装置。吸能装置是提高机车车体耐碰撞性能的关键部件,为保证运行车辆安全,建立耐碰撞车辆数学模型,进行碰撞仿真分析,确保车体具有良好碰撞性能。利用显式有限元分析软件ANSYS/LS-DYNA,分析了薄壁结构吸能装置对其碰撞性能的影响,找出了薄壁结构在非正面碰撞时的规律。对安装了由薄壁结构组成的吸能装置的某型机车车体进行了非正面碰撞仿真,仿真结果得到机车车体碰撞过程的能量—时间历程,表明结构吸能装置具有良好的吸能作用。
Energy-absorbing structure is the key component to improve the crashworthiness of the locomotive car-body,crash simulation analysis is an important method in ensuring car-body having better crash performance.Explicit finite element analysis software ANSYS/LS-DYNA is used to simulate the effect of the angle and the cross section and the thickness on the crash capacity of the thin-walled structure,the collision rule of the thin-walled structure is understood.One locomotive car-body equipping with the energy-absorbing component composed of thin-walled structure is put up to simulate the non frontal collision procedure,so as to attained the collision energy-time course,the result shows that this energy-absorbing component has efficiency effect.
出处
《计算机仿真》
CSCD
北大核心
2010年第8期286-289,294,共5页
Computer Simulation
关键词
耐撞性
吸能装置
计算机仿真
薄壁结构
Crashworthiness
Energy-absorbing component
Computer simulation
Thin-walled structure
