钢的力学性能对汽车减震器和减震器蜂窝吸能的影响

P. S. Mikheev, I. Demiyanushko, I. Karpov, O. Titov
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引用次数: 0

摘要

为了减少事故的影响,降低乘员的受伤程度,研究了在道路施工或特种车辆道路危险障碍物前安装在安全车上的碰撞缓冲垫和车载衰减器(TMAs)中使用的吸能蜂窝结构的力学特性。当车辆撞击时,其动能转化为构件变形的内能。影响能量吸收的因素之一是构成结构的材料的机械性能和冲击速度。基本上,tma和碰撞缓冲垫是由钢或铝合金制成的,它们的性能不同。本文采用Ansys LS-DYNA有限元软件,研究了钢st3屈服强度和切向模量对蜂窝结构吸能的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of Mechanical Properties of Steel on the Energy Absorption of Honeycomb for Truck Mounted Attenuators and Crash Cushions
The paper considers mechanic of energy-absorbing honeycomb’s structures used in crash cushions and truck mounted attenuators (TMAs) installed on safety cars during road works or in front of dangerous obstacles on the roads on special services vehicles in order to reduce the impact of an accident and occupant’s level of injury. When a vehicle hits, its kinetic energy is converted into the internal energy of deformation of the elements of the construction. One of the factors affecting energy absorption is the mechanical properties of the material from which the structure is made and impact velocity. Basically, TMAs and crash cushions are made of steel or aluminum alloys, the properties of which differ. The impact of yield strength and tangential modulus of steel st3 on the energy-absorption of a honeycomb structure is studied in the paper using the finite element method by Ansys LS-DYNA.
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