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Research on Ram Airbag of Dynamic Parameters During the Landing Process

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Abstract:

Punching and quick airdrop rigid airbag technique adopts punching method of gathering gas, gets working energy directly from the air recuring to the speed of the airdrop equipments. It greatly shortens the airdrop time. Adopting LS-DYNA software, the paper researches the dynamic parameters of the stress, the velocity, the acceleration of the ram airbag of punching and quick airdrop. Research results indicate the following results. The stress and the strain of the undersides and the edges of the airbag reach its maximum values when the time is 0.42×10–6 seconds. Impact on x axis arouses a large change of velocity and acceleration on x axis. Change of velocity and acceleration on y axis and z axis is mainly caused by the change of velocity and acceleration on x axis. Relative to x axis, the velocity and the acceleration of y axis and z axis vary relatively small, so they can be ignored. Punching and quick airdrop rigid airbag can cushion better.

Keywords: ACCELERATION; DYNAMIC; LS-DYNA; RIGID AIRBAG; STRESS; VELOCITY

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/asl.2012.2271

Publication date: March 1, 2012

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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