Effect of the landing angles on the cushioning performance of multi-chamber airbagsOA
Presented in this paper is a numerical investigation into the cushioning performance of airbag employed for buffer protection.The cushioning performance,in terms of the peak overload,z-velocity and inner pressure,is described in detail.The influence of the landing angle with the ground,and the chamber configurations on the cushioning performance is analyzed.The results obtained showed that fluctuations were observed in the buffer overload values,inner pressures,and surface stress during the airbag landing process.As the landing angle increased from 0°to 90°,the peak overload experienced by the buffer initially decreased and subsequently increased,reaching its maximum value of 78.13 at 0°.Stress concentration was observed at several critical locations.In addition,the peak overload was minimally influenced by the outer airbag configurations,consistently exhibiting the highest at a landing angle of 0°.Considering variability in landing angles,the horizontal-vertical configuration of the outer airbag is preferable,as it yields the lowest maximum peak overload value of 76.33.
Daren Zheng;Huan Xu;Jianhong Sun;Zhi Sun
Key Laboratory of Aircraft Environment Control and Life Support,MIIT,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,ChinaKey Laboratory of Aircraft Environment Control and Life Support,MIIT,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,ChinaKey Laboratory of Aircraft Environment Control and Life Support,MIIT,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China Key Laboratory of Emergency Science and Technology,CAAC,Nanjing University of Aeronautics and Astronautics,Nanjing 211116,ChinaKey Laboratory of Emergency Science and Technology,CAAC,Nanjing University of Aeronautics and Astronautics,Nanjing 211116,China
航空航天
Cushioning performanceMulti-chamber airbagPeak overloadLanding angle
《Aerospace Traffic and Safety》 2025 (2)
P.118-127,10
supported by Shanghai Central Government Leading Local and Technology Development Funds(No.YDZX20233100004008).
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