摘要
将船体梁视为两端自由的Timoshenko梁 ,在借用二维切片法和水弹性方法的基础上 ,计算船体梁在水下爆炸二次脉动压力下的响应特性 .同时 ,还建立了在考虑水面效应和气泡运动时舰船受到二次脉动压力的计算模型 .最后 ,以实船计算为例 。
Underwater explosions generate gas bubble impulsive pressure.We described the calculating model of the gas bubble impulsive pressure,in which the effects of water surface and the up floating motion of the gas bubble were considered.On the basis of the two dimensional strip theory and the hydro-elastic method,the dynamic response of the ship induced by impulsive pressure was calculated,wherethe ship hull was treated as a free-free Timoshenko beam.In addition,the characteristics of the whipping response of a real ship subjected to the gas bubble impulsive pressure of underwater explosion was analysed.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
2000年第1期1-5,共5页
Journal of Harbin Engineering University
关键词
水下爆炸
气泡脉动压力
舰船
振荡响应
underwater explosion
gas bubble impulsive pressure
Timoshenko beam
whipping response
