Preliminary Study on Numerical Simulation of Multi-layer Stacking Packages

Abstract

Distribution packages are commonly stacked as unit loads, and vibration is the main hazard that causes product damage in the logistics stage. This study aims to propose a simulation method that considers the vibration of multi-layer stacking distribution packages. Firstly, a dynamical model of a single-layer package was studied to clarify vibration mechanism. Secondly, a simulation model is built to clarify the vibration of a single-layer package. Thirdly, a multi-layer vibration model is proposed based on the single-layer model, and the calculation method of simulation parameters is researched by using a mathematical model. Verification experiments are also performed with two self-designed typical boxes. Furthermore, we investigate a correction method for the simulation errors and analyze the relationship between the spring constant of a multi-layer and that of a single layer and the stacking layer number. Finally, two types of equations are thus proposed for the multi-layer stacking model of distribution packages.