Experimental and Numerical Studies on the Impact Energy Absorption of Cutting Shear Rings

To improve the passive safety of collision process, we designed a kind energy absorption device based on cutting shear rings (CSR). It can be installed in limited space, overcoming characteristic traditional devices that cannot play their advantages narrow and it will not accompanied by splashing chips process absorption. The impact characteristics outside rods are analyzed. feasibility finite element method to study device’s is demonstrated through combination drop hammer test numerical simulation. At same time, responses under nine different working cases simulated, Moreover, effects ring thickness spacing also results show there several peak forces during each force failure ring. rings’ correlates positively with force. But only affects number forces. There linear trend between absorption, slope increases increase thickness.