Cushion Characteristics of Omni-directional and Multi-chamber Airbag
WEN Guilin1,2, LEI Zhihua1,2, YIN Jianwu3, YIN Hanfeng1,2
1. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University;2. The Key Laboratory of Advanced Design and Simulation Techniques for Special Equipment,MOE,Changsha, 410082 ;3. Changsha Aobang Environment Protection Co., Ltd, Changsha, 410000
Abstract：The airbag buffer technology is widely used in vehicle, aerospace, military and other industries. Based on the nonlinear finite element code LS-DYNA, this paper established the finite element model of the omni-directional and multi-chamber airbag soft landing system. The model was valid judging from the experiment results and the simulation analysis of soft landing process was completed. Subject to rational design conditions, we studied the cushion characteristics on omni-directional and multi-chamber airbag and analyzed the influences of the initial airbag pressure, airbag diameter, diaphragm inner hole diameter and vent diameter on cushion properties. The results can be used to guide omni-directional and multi-chamber airbag landing system design. Key words：LS-DYNA; Cushion; Airbag; Soft landing
2013, Vol. 32 
