摘要
对水面舰船的冲击环境研究是考核舰船生命力问题的重要组成部分.结合大型有限元动力分析软件ANSYS/LS-DYNA对某3种不同的排水量、不同类型的水面舰船进行了数值实验研究,分析了不同水下非接触爆炸时,水面舰船船底结构冲击加速度峰值随排水量等参数变化的趋势,为水面舰船生命力评估提供了一种便捷的输入冲击环境.通过数据分析表明:水面舰船底部冲击加速度峰值与排水量、水线面有效承载面积.药包重量、爆心距船体外表面最短距离等参数有关.在对水面舰船冲击环境进行数值分析时,可以参照水面舰船的相关参数合理给出加速度的变化趋势,为舰船抗爆抗冲击分析提供一定的基础.
Research on impulsive environment is an important part of assessing the survivability of a naval ship. By using software ANSYS/LS-DYNA, the numerical simulation of three ships with different displacement and types was done. The tendency of peak value of accelerations on the ship's bottom along with the changing parameters of the displacement, main dimensions, and area of water plane was analyzed when the ships suffered from different non-contact underwater explosions. It is concluded that the peak value of accelerations on the ship's bottom is relevant to some parameters, such as displacement, effective burdening area of water plane, TNT masses and the shortest distance from the position of bomb to external surface of the ship. The numerical simulation on impulsive environment of a warship may give the change tendency of accelerations reasonably by means of correlation parameter of the ship. This can offer a base in analyzing the anti-detonation and resistance to impact of the ship.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2005年第1期24-29,共6页
Journal of Harbin Engineering University
关键词
水面舰船
冲击环境
相关参数
Acceleration
Bombs (ordnance)
Computer simulation
Computer software
Detonation
Impulse testing
Underwater explosions
