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| The Cushion Performance Analysis of Packaging Equipment under Impact |
| Received:April 02, 2021 Revised:April 16, 2021 |
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| DOI：10.7643/issn.1672-9242.2021.05.014 |
| KeyWord:cushion component conservation of energy material point method foam filled honeycomb |
| Author | Institution |
| LIU Ping |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
| BAI Yong-gang |
Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang , China |
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| Abstract: |
| The paper aims to obtain optimistic structure of cushion component with the lowest size and mass. The theoretical models for analysis of dynamic behavior of cushion component in packaging equipment under impact environment were established based on conservation of energy, and the relationships of the size of cushion component versus protective performance were gained including both cases of front impact and side impact. New design with foam filled honeycomb (FFH) material of cushion component was studied, and accordingly the best parameters of FFH were chosen. The numerical models of cushion component during impact were realized and computed. The protective effect of cushion component was analyzed, and the velocities of equipment to be protected were attained. During impacts of different attitudes, the sizes of cushion component increased with impact energy increasing and decreased when density and plateau stress increased. When the sizes and mass of cushion component was lowest, the density for FFH was found to be 600 kg/m3. And the mass of cushion component with FFH was reduced by 49% compared to spruce. The computational results using Material Point Method validated that the cushion component with FFH could reduce the high impact velocity to target value of low impact velocity. The cushion component designed with FFH satisfied security demands of cushion component under impact, and could reduce the total mass largely. |
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