安全、健康和环境2025，Vol.25Issue(11)：45-53,9.DOI:10.3969/j.issn.1672-7932.2025.11.006
冲击波加载下充气式多层耗能结构削波性能仿真及试验研究
Simulation and Experimental Study on the Wave-Cutting Performance of Inflatable Multilayer Energy-Dissipating Structures under Shock Wave Loading
摘要
Abstract
During storage or transportation,pressure vessels for liquefied hydrocarbons are highly prone to physical explosions if subjected to external impacts,excessive expansion,or structural defects.The resulting shockwaves significantly increase the risk of damage to surrounding important facilities.To enhance the protec-tion ability of pressure vessels such as oil tanks against explosion shock waves,an inflatable multi-layer energy dissipation structure has been proposed.This structure,composed of a multi-stable framework,flexible large-deformation inflatable components,and polyurethane rigid foam composites,effectively dissipates impact ener-gy.Based on the Coupled Eulerian-Lagrangian(CEL)method,the structural response and wave-cutting char-acteristics during an explosion were investigated.The research results showed that among the influences of the gradient inflation mode on the airbag's wave-cutting capacity,the effect of changing the position of the low-pres-sure layer was relatively irregular.When the high-pressure layer position moves downward,the wave-cutting ca-pability weakened.The gradient-increasing inflation method can maximize the wave-cutting ability of the airbag.The multi-stable airbag with gradient-increasing inflation mode(5/15/25 kPa)could achieve the highest shock-wave mitigation efficiency.Polyurethane addition significantly improves the attenuation rate of the airbag,but the increase in surface density leads to a decrease in energy absorption efficiency.The research results provide a theoretical basis for the application of inflatable multilayer energy-dissipation structures in the field of petro-chemical explosion protection.关键词
爆炸防护/充气结构/复合结构/梯度内压/削波/多层耗能结构Key words
explosion protection/inflatable structures/composite structures/gradient internal pressure/wave cutting/multilayer energy-dissipating structures分类
资源环境引用本文复制引用
白家琦,祁少博,李梦路,朱明珠,袁梦琦,梁一鸣..冲击波加载下充气式多层耗能结构削波性能仿真及试验研究[J].安全、健康和环境,2025,25(11):45-53,9.基金项目
国家自然科学基金(12402451),基于捕蝇草仿生的多稳态充气拱抗爆机理研究 （12402451）
爆炸科学与安全防护全国重点实验室自主课题青年基金项目(QNKT25-05),高速冲击下层间复合螺旋状纤维层间仿生结构动力响应及理论研究 （QNKT25-05）
中国科协青年人才托举工程(YESS20240472). （YESS20240472）
