包装运输中，物品承受冲击下常常发生转动现象，针对此包装系统，建立具有正切非线性的缓冲模型及振动方程。在模型中，考虑了包装物品的转动，同时，充分考虑了各自由度之间的耦合。在此基础上，运用数值方法,获得在正弦半波脉冲冲击下的冲击响应谱曲面及破损边界曲面，分析了频率比、粘性阻尼系数、压缩极限比和环境特征参数对系统的响应影响；研究结果能为包装行业其它类型物品运输的缓冲设计提供有效参考。

During the transportation for packaging item, the item to absorb the shocks often occur the rotation behavior. A tangent nonlinear cushion model and a vibration equation are established with the consideration of the rotation of the packaging system and the coupling between the degrees of freedom. Then numerical method being used, the boundary surfaces of shock response spectrum and damage boundary are obtained under half-wave sine pulse shock condition. The effects of frequency ratios, viscous damping coefficients, compression limit ratios, environmental system parameters on the response of packaging system are analyzed. The results provide an effective reference to other types packaging item during transportation.