Simulation Research of the Cushioning Airbag during the Landing Process Based on Ansys/LS-DYNA

QI Ming-si, LIU Shou-jun, ZHAO Qi, ZHANG Feng

Packaging Engineering ›› 2014 ›› Issue (11) : 13-17.

Packaging Engineering ›› 2014 ›› Issue (11) : 13-17.

Simulation Research of the Cushioning Airbag during the Landing Process Based on Ansys/LS-DYNA

  • QI Ming-si, LIU Shou-jun, ZHAO Qi, ZHANG Feng
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Abstract

Objective This paper took a punched quick airdrop airbag as the research object, and simulated its cushioning process during the landing process at a certain angle. Methods The paper established a simulation model of the airbag through SolidWorks software and used the finite element analysis software Ansys/LS-DYNA to simulate the landing process from the aspects of airbag material definition, construction of finite element model and simulation results analysis. The dynamic parameters of the stress and strain of the airbag during the landing process of the punched quick airdrop airbag as well as the impact acceleration curve of the goods and airbag were obtained. Results During the landing process of the punched quick airdrop airbag with 15° deviation from the vertical shaft, the maximum stress value of the airbag was 1.47 MPa and the corresponding maximun strain value was 0.479 614 m at the contacting edge of the airbag with the ground at 0.077 207 s. Conclusion When the punched quick airdrop airbag landed at an angle of 15° deviated from the vertical shaft, the biggest impact should use 1.47 MPa as a standard. As a result, the mass of airdrop body can be better specified, and the protection of the area with great stress and strain to the airbag from being damaged during the process of impact could be strengthened.

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QI Ming-si, LIU Shou-jun, ZHAO Qi, ZHANG Feng. Simulation Research of the Cushioning Airbag during the Landing Process Based on Ansys/LS-DYNA[J]. Packaging Engineering. 2014(11): 13-17

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