KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY (한국포장학회지)

Korea Society of Packaging Science and Technology (한국포장학회)
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Static and Dynamic FEM Simulation of Packaging Tray Cup Pad for Korean Pears

  • Choi, Dong-Soo (Postharvest Engineering Division, National Institute of Agricultural Sciences) ;
  • Son, Jea-Yong (Postharvest Engineering Division, National Institute of Agricultural Sciences) ;
  • Kim, Jin-Se (Postharvest Engineering Division, National Institute of Agricultural Sciences) ;
  • Kim, Yong-Hoon (Postharvest Engineering Division, National Institute of Agricultural Sciences) ;
  • Park, Chun-Wan (Postharvest Engineering Division, National Institute of Agricultural Sciences) ;
  • Jung, Hyun-Mo (Dept. of Logistic Packaging, Kyongbuk Science Collelge) ;
  • Hwang, Sung-Wook (Dept. of Chemical Engineering, Keimyung University)
  • Received : 2019.11.19
  • Accepted : 2019.12.27
  • Published : 2019.12.31
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Abstract

Among the many packaging materials used in cushion packaging, there is a lack of optimum design for the tray cup pad used in fruit packaging for export and domestic distribution. It causes over-packaging due to excessive material input, and this could be solved by applying various parameters needed to optimize the design of the tray cup pad considering the packaging material and the quantity of fruits in the box. In the case of a tray cup for fruits, the economic efficiency of material and thickness should be considered. Therefore, it is possible to design a tray cup pad depending on the packaging material used by applying appropriate design parameters. The static and dynamic characteristics of the materials used for packaging of pears were analyzed by using the FEM (finite element Method) simulation technique to derive the optimal design parameters. And by applying the appropriate design parameters considering the quantity of fruit and distribution environment, it is possible to design an appropriate fruit tray cup pad. In this study, as a result of simulating the contact stresses between the fruit and the tray cup for the PP, PE, and PS materials used in the fruit tray cup, the material with the lowest contact stress was PP and the value was found to be 398 Pa. The contact displacement between fruit and tray cup using this material was about 0.0463 mm, which was the lowest value compared with other materials. Also the resonance frequency band of tray cup made of PP material was below 36.81 Hz, and the strain energy was below 12.20 J. The resonant frequency band of the pear is more than 80 Hz and it could be applied to all the tray cup materials as compared with the resonance band of 38.81 Hz or less which is the resonance band of all tray cup pads for packaging. Finally, PP is the most suitable material for the tray cup pad.

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References

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