Abstract
The work aims to verify the protection of molded pulp package of laptop computer to products under drop conditions, and improve the design. The initial design of laptop and cushion package structure was built up with Creo. According to the actual physical drop test conditions, the drop simulation model was established, and the product drop acceleration curve and stress-strain nephogram were obtained by ABAQUS/Explicit simulation analysis. According to the simulation results, the cushion package design was improved, and the improved scheme was simulated and analyzed again and verified by experiment. The front-surface drop acceleration of the initial design scheme was up to 160.1g, exceeding the allowable value of 120g, and the plastic strain of the keyboard shell was up to 4.95%, presenting a greater risk of deformation. After the improvement of the cushion structure, the drop acceleration of the front, side, and bottom surfaces was 118.5g, 98.2g, and 101.2g, respectively, within the allowable value range. The plastic strain of keyboard shell was reduced to 0.14%, meeting the requirements. In addition, the simulation results were basically consistent with the actual measurement results, and the simulation process could better reflect the drop collision process between the packaged product and the product. The drop simulation analysis by finite element analysis method can quickly and accurately find the risk points of the packaging scheme compared with the traditional test method, which can lay a good foundation for the design improvement of the cushion package.
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ZHANG Shu-wei, JIA Dai-tao, HUANG Meng-kai, WEI Ming-tang, GUO Jin-ting.
Design Improvement of Molded Pulp Package for Laptop Computer Based on Finite Element Analysis[J]. Packaging Engineering. 2022(3): 175-182 https://doi.org/10.19554/j.cnki.1001-3563.2022.03.022
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