This study focuses on the effect of lateral mass impact on ring-stiffened thin-walled cylindrical shell. Cylindrical shells were fabricated to validate the numerical modeling and analytical techniques, and drop tests were performed using a rigid spherical indenter. Next, stiffened-ring cylindrical shells with various structural size parameters were simulated using ABAQUS software. The relationships between the impact force, deformation displacement, and rebound velocity were established, on the basis of impact mechanics theory and simulation results. It derived fitting functions to analyse the relationship between the maximum load and maximum displacement of ring-stiffened cylindrical shell under dynamic mass impact. Based on the validation of the simulation model, the fitting function data were compared with the simulation results, and the functions showed a good accuracy. Besides, the parameters, mass ratio and stiffened-ring mass ratio were used to reflect the effect of the mass change in the ring-stiffened cylindrical shell. Furthermore, parametric studies on ring-stiffened cylindrical shell models were conducted to analyse the progressive impact responses.

本研究侧重于横向质量冲击对环加筋薄壁圆柱壳的影响。制造圆柱壳以验证数值建模和分析技术，并使用刚性球形压头进行跌落测试。接下来，使用 ABAQUS 软件模拟了具有各种结构尺寸参数的加强环圆柱壳。在冲击力学理论和模拟结果的基础上，建立了冲击力、变形位移和回弹速度之间的关系。导出拟合函数，分析动态质量冲击作用下环加劲圆柱壳的最大载荷与最大位移之间的关系。在对仿真模型进行验证的基础上，将拟合函数数据与仿真结果进行对比，并且函数显示出良好的准确性。此外，参数质量比和加筋环质量比用于反映环加筋圆柱壳质量变化的影响。此外，对环加劲圆柱壳模型进行了参数研究，以分析渐进式冲击响应。