刚性截锥形弹体入水冲击载荷

研究截锥形弹体垂直入水冲击载荷。建立了截锥形弹体垂直入水冲击载荷的理论计算模型;对截锥形弹体在不同入水速度和不同头部结构参数情况下的入水冲击载荷进行了计算;分析了入水速度、弹体头部参数和沾湿因子对入水冲击载荷的影响。研究结果对弹体入水冲击载荷的预测和截锥形弹体头部结构的设计具有参考价值。     

基于MATLAB/Simulink的火箭深弹水中弹道仿真

以火箭深弹水中弹道模型为基础,采用MATLAB/Simulink对火箭深弹水中弹道进行仿真,在仿真过程中以特定火箭深弹的弹体结构参数为初始条件,成功模拟了火箭深弹的水中弹道,讨论了初始弹道倾角和初始速度对水中弹道的影响.研究结果为其他相关研究提供参考.     

Experimental Investigation of Water-Entry Phenomenon

In order to investigate the cavity shape and velocity attenuation of steel spheres after high-speed water entry,the high-speed water entry of different water entry angles were performed. The cavity shapes were recorded using high-speed photo recorder,and the velocities after water entry were measured. The diameters of equivalent disk of steel spheres after water entry were obtained from the processing of cavity images. Based on the steady and uncompressing flow assumption,a theoretical model for velocity at...