Application of Composite Material in the Energy Absorbing and Anti-climbing Device of Metro Train
The energy absorbing and anti-climbing device mounted on the front end of standardized metro train can absorb the energy generated during collision of the train and alleviate the impact on the train.It's mainly composed of impingement surface,guiding device and energy absorbing element.The impingement surface and the guiding device are normally made of aluminum alloy,while the energy absorbing element is in aluminum honeycomb structure.For the purpose of light weight,this article designs a new type of energy absorbing and anti-climbing device of composite material combined with aluminum honeycomb structure and proposes four structural schemes.The finite element calculation is used to check the strength and calculate the energy absorption.The result shows that the designed energy absorbing and anti-climbing device of composite material can meet the strength requirement.By comparing its energy absorption property with that of the energy absorbing and anti-climbing device of aluminum alloy,it turns out that the energy absorbing device of composite material has obviously higher specific energy absorption,and at the honeycomb densification and cutoff displacement point of the load-displacement curve,the specific energy absorption of the energy absorbing and anti-climbing device of composite material is 3.26 times that of the aluminum alloy material,which can meet the use demand of energy absorbing devices and the light weight requirement of metro trains.
NETL
NSTL
万方数据
维普
