Research on the Safety for Airdropping Launch Canister

In order to research the safety for airdropping multi-shell launch canister,the finite element model for equipment landing was set up.The landing impact process was simulated by explicit non-linear dynamic method.The response was obtained under normal and worst airdrop conditions.According to the safety index,the stress of the canister frame and the different directors,the vertical acceleration and axial force of rocket were discussed.It proves that the safety of airdropping launch canister taking buffering and damping measures is assured and the feasibility is verified.The evidence and guidance are provided for structure's designing and improving,packing for landing buffering,and dear airdrop test.