中国舰船研究2024，Vol.19Issue(3)：182-192,11.DOI:10.19693/j.issn.1673-3185.03357
典型舱内爆炸载荷作用下吸能元件防护特性研究
Protective characteristics of energy absorbing elements under typical cabin explosion loads
摘要
Abstract
[Objective]This study explores design methods for explosion-resistant energy-absorbing core elements in cabin subject to the joint effects of blast-induced shockwave and quasi-static barometric pressure.[Methods]Finite element numerical calculations are used to analyze the characteristics of flexing-type and yielding-type energy-absorbing elements in the above conditions in terms of load weakening factor,energy ab-sorption,deformation damage mode and maximum displacement at the center point of the lower panel,and the protective performance characteristics are obtained.On this basis,a dual-stiffness energy-absorbing element is proposed to resist the combined action of blast-induced shockwave and quasi-static barometric pressure and its performance is then compared with that of the two energy-absorbing elements.[Results]Under the action of blast-induced shockwave,the load dissipation and energy absorption ability of the yielding-type energy-absorbing element is better than that of the flexing-type energy-absorbing element;under the action of quasi-static barometric pressure,the deformation of the yielding-type energy-absorbing element is greatly affected by the time of action of the load,while the deformation of the flexing-type energy-absorbing element is almost unaffected by the time of action;under the combined action of blast-induced shockwave and quasi-static baro-metric pressure,the protection ability of the dual-stiffness energy-absorbing element is better than that of the single-stiffness flexing-type and yielding-type energy-absorbing elements.[Conclusion]The results of this study can provide a new approach to the design of explosion-resistant configurations in cabins.关键词
舱内爆炸载荷/吸能元件/变形形貌/防护性能Key words
cabin explosion load/energy-absorbing element/deformation morphology/protective perform-ance分类
交通工程引用本文复制引用
姚梦雷,侯海量,李典..典型舱内爆炸载荷作用下吸能元件防护特性研究[J].中国舰船研究,2024,19(3):182-192,11.基金项目
国家自然科学基金资助项目(51979277,52271338) （51979277,52271338）
国家自然科学基金青年基金资助项目(52101378) （52101378）
