Cushion characteristics of an omni-directional and multi-chamber airbag

The airbag buffer technology is widely used in vehicle,aerospace,military and other industries.Based on the nonlinear finite element code LS-DYNA,the finite element model of an omni-directional and multi-chamber airbag soft landing system was established.The model was proved to be correct with experiment results and the simulation analysis of the soft landing process was completed.Through designing reasonable operating conditions,the cushion characteristics of the omni-directional and multi-chamber airbag were studied and the influences of initial airbag pressure,airbag diameter,diaphragm inner hole diameter and vent diameter on the cushion properties of the airbag were analyzed.The results provided a guide for design of omni-directional and multi-chamber airbag landing systems.