摘要
通过对番茄的压缩试验,测得其力—位移曲线,得出在相同加载速率下,不同硬度的番茄在横、纵向压缩时的力学特性及刚度与变形之间的关系式。同时,对番茄皮进行了横、纵向的拉伸试验,得到了番茄皮的弹性模量与应变之间的关系表达式,确定了可以用整体番茄的破裂强度与破裂延伸率和番茄皮的破坏强度值作为番茄破坏的评价指标,为建立番茄力学模型及机械设计提供了力学参数。
The force-deformation curve was measured for the whole tomato by compression test. The tensile strength of the tomatos skin was measured experimentally. Further, the compression mechanical properties of tomato with different rigidity and orientation were discussed. It was found that the strength of the tomato skin in the longitudinal is great than the crosswise direction. Moreover, the non-linear property of the force-deformation for the whole tomato was analyzed.
出处
《农机化研究》
北大核心
2003年第4期56-59,共4页
Journal of Agricultural Mechanization Research
基金
博士点基金项目(20010019031)
湖南省自然基金资助项目(02JJY5002)
