摘要
针对芯层为塑性多孔材料的抗冲覆盖层在水下非接触爆炸载荷作用时的流固耦合问题开展了理论研究。依据塑性冲击波理论求解覆盖层的动态压缩;采用改进的Taylor板理论求解流体与覆盖层的耦合作用;并以空化理论求解流体空化的传播及空化溃灭的二次加载过程,建立了完整的考虑覆盖层大变形、流固耦合效应及空化效应的理论模型。研究结果揭示了塑性多孔覆盖层在水下爆炸作用时的流固耦合及空化效应的影响。
The fluid-structure interaction effects of cellular claddings subjected to underwater explosion induced shock loadings were studied analytically in this paper. A one-dimensional analytical model which considered the large deformation of cladding, fluid - structure interaction and cavitation phenomenon was built to solve this problem, based on the plastic shock wave theory, modified Taylor^s model, and cavitation theory. The research has revealed the fluid - structure interaction effects of a cellular cladding during the underwater explosion event.
作者
殷彩玉
金泽宇
谌勇
华宏星
YIN Caiyu JIN Zeyu CHEN Yong HU A Hongxing(The State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, Chin)
出处
《振动与冲击》
EI
CSCD
北大核心
2017年第12期7-11,49,共6页
Journal of Vibration and Shock
基金
国家自然科学基金(11272215)
关键词
水下爆炸
多孔覆盖层
流固耦合
空化
underwater explosion
cellular cladding
fluid-structure interaction
cavitation
