Papers by Author: Zhuan Wei

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Authors: Zhuan Wei, Guang Jun Hua
Abstract: The cushion design methods based on cushioning coefficient - maximum stress curve were studied. In research work, the cushioning coefficient - maximum stress curve was equivalent to an infinitive equation, and then composed to infinitive equations together with the cushion area and thickness formula. The cushion design methods based on cushioning coefficient - maximum stress curve was characterized as the problem of solving infinitive equations. By this method, the classic cushion area and thickness calculation methods were analyzed. It is believed that the essence of the classic design methods is increasing a restriction to the infinitive equations, as changed the original infinitive equations to posed equations. The research work can help designers deep understanding the traditional cushioning design methods and theories, and can be used to flexible design the cushion structure.
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Authors: Zhuan Wei, Guang Jun Hua, De Jian Zhao
Abstract: The aspect ratio is one of the important factors that impact the corrugated box compression strength. In this paper, the three most commonly method that can be used to obtain the corrugated boxes’ compression strength, namely testing method, classic formula method and computer simulation method were compared. Selecting some 0201 BC flute corrugated boxes as the object, on the condition that the cardboard materials, carton height and circumference of the corrugated box is at the same, the compression strength of corrugated boxes which aspect range from 1 to 3 were tested and calculated respectively by compression strength testing method and classical formula. The results show that when the aspect ratio changes from 1 to 3, the compression strength increase at first, and then decrease; the compression strength reach maximum when the aspect ratio at 1.6 or so. The results show that the classic formula calculation data are large deviate from the testing ones. Research shows that due to not fully take into account the influence of corrugated cardboard quality, box forming process, temperature and humidity and other factors, the currently classic compression strength formula are more conservative.
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