爆炸与冲击2011，Vol.31Issue(5)：469-474,6.
冲击载荷下柔性储液罐动态响应数值模拟及规律分析
Dynamic analysis of flexible containers under impact
摘要
Abstract
To understand and improve the crashworthiness of flexible containers, the dynamic behaviors of the container under impact loading were numerically simulated. The water movement and sloshing in the container were modeled by using the ALE method. The interaction between the container and fluid was studied by applying the penalty method. The model and approaches were validated by comparing numerical results with experimental data. Based on the above investigation, numerical simulation was performed to explore the influences of drop height and water quantity on the dynamic response of the container. And the deformation and stress distribution at the key positions were analyzed. Results display that the shoulder of the container is the most vulnerable part during impact; that both drop height and water quantity have great effects on the crashworthiness of the container; that the maximum dynamic stress of the container is proportional to drop height and there lies a V-shaped relation between the maximum dynamic stress and water quantity.关键词
流体力学/动态响应/ALE方法/柔性储液罐/流固耦合/冲击载荷Key words
fluid mechanics/ dynamic response/ ALE/ flexible container/ fluid-structure interaction/ impact load分类
数理科学引用本文复制引用
曹源,金先龙,李政..冲击载荷下柔性储液罐动态响应数值模拟及规律分析[J].爆炸与冲击,2011,31(5):469-474,6.基金项目
国家自然科学基金项目(11072150) （11072150）
教育部博士点基金项目(0070248110) （0070248110）
机械系统与振动国家重点实验室基金项目(MSV-MS201107) （MSV-MS201107）
