圆孔拉刀式吸能器吸能特性的研究

Round Broaching Energy Absorption Characteristics of Energy-Absorbing Device

根据轨道车辆吸能器的吸能要求和金属切削过程吸收能量的原理,提出一种用于轨道车辆的新型切屑式吸能装置-圆孔拉刀式吸能器。在此基础上对圆孔拉刀式吸能器进行初步的结构设计。并利用ANSYS/LS-DYNA对该切削式吸能装置不同的结构和材料以及切削厚度进行了仿真分析,得到了该装置在撞击过程中切削力的时程曲线。并对圆孔拉刀吸能器的吸能效率进行评估,指出了圆孔拉刀式吸能器的可行性,为进一步探索圆孔拉刀式吸能装置的吸能特性提供指导作用。

According to energy absorption requirements of track vehicle and the principle of the metal cutting process, a new metal-cutting energy absorberround broaching energy absorber used for rail vehicle was proposed. On this basis, the preliminary structure of round broaching energy absorber was designed. It uses ANSYS/LS-DYNA for different structures, materials and cutting thickness of the metal-cutting energy absorber dynamic simulation. It can get absorbed energy and cutting force curve. Then assesses the efficiency of round broaching energy absorber, and points out its feasibility. It is better guilt for the further research on metal-cutting energy absorber.