摘要
针对空投鱼雷入水冲击问题 ,研究了环向加筋圆柱壳在侧向不均匀冲击载荷作用下的动力响应。考虑了壳体剪切变形、转动惯性以及加筋肋骨的拉伸、弯曲和剪切变形 ,运用 Hamilton变分原理推导出了运动方程 ,并且采用一种半解析有限差分法进行了求解。分析了加肋数目。
The dynamic response of ring-stiffened cylindrical shells under non-uniform lateral impact was investigated. The Hamilton variation principle was extended to derive the equations of motion, taking account of the shear deformation and the rotational inertia of the shells and the stiffeners. And a semi-analytic finite difference method was used to solve this problem. The effects of the number of stiffeners, γj=Bj/Hj ratio and stiffening forms on the dynamic response of ring-stiffened cylindrical shells were discussed.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2001年第4期443-448,462,共7页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金资助项目 ( 1 980 2 0 1 7)
