摘要：Due to their simple structure,crooked plates are widely processed into energy absorption *** are obvious differences in the final deformation of crooked plates with different materials and dynamic conditions under the impact of constant-input kinetic *** better understand this phenomenon,we solved the Zhang-Yu equation with Maple software,obtained the law of generalized coordinates(rotation angle)of the energy absorber changing with time,and compared the energy absorption capacity of a crooked plate energy absorber under different *** better understand how the motion of the energy absorber is affected by the change of parameters,we calculated the phase diagram of the energy absorber *** many numerical simulations,we found that the four-crooked plate energy absorber should have a mass-sensitive *** established the finite element model of dynamic buckling of mild steel and 6061-T6 aluminum alloy,and compared it with the Calladine-English dynamic experiment and Zhang-Yu rigid viscoplastic *** results show that:(1)the Zhang-Yu rigid viscoplastic model has more guiding significance for mild steel(strain rate-sensitive material),and has greater error for 6061-T6 aluminum alloy(strain rate-insensitive material),and the prediction error further increases with the initial angle;and(2)by modifying the equivalent plastic length A of a plastic hinge according to the finite element model,the prediction accuracy of the Zhang-Yu rigid viscoplastic model can be *** research results certain guiding significance for the design and manufacture of energy-absorbing structures of crooked plates.