Factors influencing the shock characteristics of cubic nonlinear packaging system with critical component
HUANG Xiu-ling1;WANG Jun*2,3; LU Li-xin2,3; WANG Zhi-wei4;LI Ming1
1. School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China; 2.Department of Packaging Engineering, Jiangnan University,Wuxi 214122,China;3.Key laboratory of food packaging techniques & safety of China national packaging corporation, Wuxi 214122,China;4. Packaging Engineering Institute, Jinan University, Zhuhai 519070,China
Abstract： The shock characteristics of a cubic nonlinear packaging system with critical component were investigated under the action of half-sine acceleration pulse. The dynamical model of the system was developed, and the numerical results of the dynamical equations were obtained. Based on the results, the effect of frequency ratio, mass ratio, damping ratio of critical component and cushion, pulse peak acceleration in addition to pulse duration on the maximum response acceleration and displacement of critical component was discussed. It’s shown that all of their effects are noticeable. The results lead to significant insights into the design of cushioning packaging.
2010, Vol. 29 
