Design and Random Vibration Simulation of the S-shaped Vibration Damping Structure for Transport Pallet

In order to improve the safety of containerized transport unit in palletized transport, this paper designs a new structural vibration damping pallet. Compared with the pallets that rely on material damping, the former is less affected by the environment, and can limit the horizontal and vertical deformation, making it elastic vertically to ensure the stability of cargo stacking. The relationship between its elastic deformation and material properties, size parameters and loads is obtained by establishing the mechanical model of the S-beam damping structure. Through finite element simulation of the static elastic deformation of the pallet, the relative error between the simulation and the theoretical results is only about 1%, which verifies the theoretical basis of the vibration damping structure and reliability of the finite element modeling. In random vibration simulation, the S-shaped structural vibration damping pallet has a damping effect from 11.2Hz, and it reduces vibration energy of the traditional pallet by 46.3% and 9.3% less than the EPE material damping pallet and covers a wider damping frequencies. The results show that the pallet has obvious vibration reduction effect, can effectively protect the cargo and increase security of palletized transport.