爆炸与冲击2026，Vol.46Issue(1)：12-27,16.DOI:10.11883/bzycj-2025-0160
结构体高速倾斜入水的尾拍载荷及姿态稳定性
Tail-slapping load and trajectory stability of a trans-media vehicle during high-speed oblique water entry
摘要
Abstract
To understand the multiple tail-slapping the trans-media vehicle going through during the high-speed water entry,which may cause damage to the main structure and its accessories.The study was conducted to investigate the load characteristics of the main body of the trans-media vehicle and its accessories in the stages of the generation,development,and collapse of cavities under the condition of inclined water-entering with an attack angle,based on the VOF multiphase flow method.The influence of the water entry inclination angle on the tail-slapping load,cavity collapse load and the trajectory stability are revealed.The results show that the cavity collapse stage is the most dangerous working condition during the water entry process.As the water entry inclination angle increases,the axial and normal forces on the structure increase in the cavitation collapse stage,while the normal overload coefficient approaches a constant.When the inclination angle into the water increased from 60° to 90°,the pitch moment coefficient of the structure increased by 47.1%.A larger inclination angle can reduce the axial and normal loads of the horizontal rudders during the cavity collapse stage,and also improve the trajectory stability of the vehicle.However,it will increase the axial loads of the vertical rudders at the same time.When the cavity wall impacts the tail of the trans-media vehicle during the cavity collapse stage,the three-directional rotation of the body is suppressed,causing it to be in a brief state of rest.关键词
高速入水/尾拍/尾舵/空泡溃灭/入水稳定性Key words
High-speed water entry/tail-slapping/tail rudder/the cavity collapse/the trajectory stability分类
数理科学引用本文复制引用
李尧,张东俊,孙铁志,刘凡,袭祥发..结构体高速倾斜入水的尾拍载荷及姿态稳定性[J].爆炸与冲击,2026,46(1):12-27,16.基金项目
国家自然科学基金(52431010) （52431010）
