基于分数阶导数的苹果果柱蠕变特性研究

Creep Properties of Apple Based on Fractional Order Derivative

为了给果品减损包装设计提供理论依据,降低果品在运输过程中的损耗,研究了果品的蠕变特性。以水晶红富士为实验材料,基于分数阶导数理论,建立了苹果果柱蠕变的分数导数Kelvin模型。结果表明,分数导数Kelvin模型只需要很少的参数,就能够在较长加载历程中表征苹果果柱的蠕变现象。

The purpose of this research was to reduce damage of fruit during transportation and provide reference for fruit packaging design.Creep test was carried out on crystal red fushi apple.Fractional Kelvin model about the creep state of apple was constructed according to fractional order derivative theory.The result indicated that fractional Kelvin model can characterize the situation of creep of apple for a long period with a few parameters.