建立了组合吸收能量机构的力学模型，研究了组合吸能机构的破坏模式，分析了该机构的加速度-时间曲线，为机械碰撞情况的吸收能量应用提供求解思路。

Mechanical model for composite energy absorbing mechanism was established, and the damage deformation of the mechanism was investigated. The acceleration-time curve was analyzed. The provide reference for energy absorbing application of mechanical crash.