Abstract
The work aims to improve the protective effect of LCD TV package in the process of falling and increase product safety. Creo, a three-dimensional modeling software, was used to build a three-dimensional solid model of LCD TV parts and package. LS-DYNA was introduced to carry out the finite element simulation analysis, and the feasibility of the drop simulation analysis was verified by the drop test of LCD TV. Based on the simulation results, a new package structure was designed and simulated in LS-DYNA. The same drop simulation was carried out on the improved package. The results before and after the improvement were compared. The corner drop simulation analysis of LCD TV package was carried out under the condition of free falling. Its results showed that, the peak acceleration in the z direction of LCD screen with previous package was the maximum, i.e. 250g. The peak acceleration in all directions was decreased accordingly for the improved package. The peak acceleration in the z direction of the screen and the maximum Mises stress of LCD screen were decreased by 64% and 10%, respectively. The finite element simulation analysis can accurately reflect the actual dropping condition, and obtain the Mises stress and deformation of each component at any time during the drop impact of the LCD TV. It has guiding significance for the improvement of package design, and the improved package structure can protect the LCD TV better.
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ZHAO Peng-cheng, ZHANG Feng, TAN Long.
Corner Drop Simulation and Screen Fragmentation Analysis of a LCD TV Package[J]. Packaging Engineering. 2020(17): 139-146 https://doi.org/10.19554/j.cnki.1001-3563.2020.17.019
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