Research on Vibration Transmissibility of the Multiwall Pallet Packaging Units

The article introduces the dynamic model of the multiwall pallet packaging units,the natural frequency of every layer case is determined by vibration test at constant frequency and variable frequency experiment.The relationship of its natural frequency and peak value of vibration transmissibility versus stack height is studied.The results showed: in a certain rage of vibration frequency,for high viscoelasticity cases at multiwall stacking,the natural frequency of the bottom layers were higher than that of the top layer,and the frequency of peak value of vibration transmissibility depended on the stack height of the cases.