Abstract:The concept of stress envelope diagram area is put forward by using finite element analysis method through static analysis, combined with harmonic response and random vibration analysis to comprehensively evaluate the stability of overlapping stacking, rotary staggered stacking, positive and negative staggered stacking packages. The results show that in the horizontal axis, the stress envelope diagram area of positive and negative staggered stacking gradually decreases with the increase of the number of layers, the stress is smaller than the other two stacking types, and the fluctuation and deformation of the maximum and minimum stress are relatively small among the three. In the vertical axis, the maximum stress and minimum stress of the three stacking types fluctuate greatly. The shape variable of the positive and negative staggered stacking is equivalent to that of the overlapping stacking, while the shape variable of the rotary staggered stacking is the largest. Therefore, in the transportation process, when the stacking pieces are bundled or fixed by winding film, it is better to choose the positive and negative staggered stacking.