夹芯强度对新型液舱防护效能的影响

It is really hard to protect liquid cabin plates under high speed projectile penetration. New sandwich plates of safety liquid cabin were studied and speculated, and number model was set up to investigate new sandwich plates protection efficiency. Comparing super-cavitation and projectile velocity, validity of number simulation was gained. After that, some cases of different projectile velocity and core plates thickness were carried out. The results show that:(1) There is obvious decrease in impulse and deformation for front plates when core plate thickness reduced; (2) The main mechanism for the new sandwich plates deformation of different core strength is the after flow; (3) The projectile loading should be considered designing the new sandwich plates to avoid crash of plates. The conclusions provide a reference for the design of the new generation aircraft carrier safety liquid cabin.