Research on the structural response of double stiffened cylindrical shells under different underwater explosion parameters
This article uses the acoustic solid coupling method to simulate the shock wave load and bubble pulsation generated by underwater mid to far field explosions on the impact response of a double layer reinforced cylindrical shell.The influence of parameters such as charge weight,explosion distance,water depth and explosion direction on the response of double stiffened cylindrical shells was studied from two aspects of whip movement and impact response of key parts under Underwater explosion loads under different working conditions.The research shows that the displacement response amp-litude of the whip motion and the acceleration amplitude of the shock environment spectrum of the double-layer stiffened cylindrical shell under the action of the medium and far field Underwater explosion under different charge weight and deton-ation distance vary greatly,but the period of the displacement response curve of the whip motion does not change much.The whip like motion of a double layer reinforced cylindrical shell is significantly affected by the periodic underwater load at dif-ferent water depths,but the amplitude of spectral acceleration does not change much.The whip movement and the spectral acceleration distribution of the shock environment of the double stiffened cylindrical shell under different explosion direc-tions are significantly affected by it.This research aims to provide data and theoretical support for the study of the impact resistance characteristics of underwater vehicle structures under the action of mid to far field underwater explosions.
NETL
NSTL
万方数据
