苹果机械损伤应力松弛特性的研究  

A STUDY ON STRESS RELAXATION PROPERTIES OF MECHANICAL DAMAGE OF APPLE

作　　者：李小昱[1] 王为[1] 朱俊平[1] 陈华 

机构地区：[1]西北农业大学机电工程学院,柳州市机械工业学校

出　　处：《农业机械学报》1997年第S1期70-74,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：陕西省自然科学基金

摘　　要：建立了描述苹果应力松弛现象的三元件Ｍａｘｗｅｌ模型。通过对苹果损伤体积影响因素的研究，得出了损伤体积与变形量及变形速率之间的二元线性回归方程，表明当变形量超出临界变形值时则产生损伤。同时认为，应力松弛与蠕变有着密切的联系。The three elements Maxwell model was established to describe stress relaxation phenomena of apple. Through the investigation of effect factors to apple bruise volume, multiple linear regression models were established among bruise volume and deformation, deformation rate. Bruise was bringed when deformation values exceed threshhold. Stress relaxation have much to do with creep.

关 键 词：苹果 机械损伤 应力松弛 

分 类 号：S661.1[农业科学—果树学]