鸡蛋品质特性的有限元分析方法  

Finite Element Approach for Egg Quality Characteristics

作　　者：刘斌[1] 吴雪[1] 张媛[1] LIU Bin WU Xue ZHANG Yuan(Beijing Technology and Business University, Beijing 100048, China)

机构地区：[1]北京工商大学,北京100048

出　　处：《包装工程》2016年第19期104-109,共6页Packaging Engineering

基　　金：北京市教委科研计划(SQKM201610011002)

摘　　要：目的研究鸡蛋品质物性参数与结构动力学响应特征参数间的关联特性,构建鸡蛋品质检测的动力学相关性模型。方法以敲击响应检测技术为基础,引入结构动力学分析方法,应用有限元仿真技术定量分析鸡蛋品质物性参数(蛋形参数、蛋壳厚度、蛋壳刚度、蛋液密度)与其一阶共振频率间的对应变化规律,获取鸡蛋品质相关的动力学特征参数。结果鸡蛋品质物性参数中蛋形参数、蛋壳厚度、蛋壳刚度、蛋液密度与其结构一阶共振频率关联性显著;蛋壳厚度与蛋体结构一阶共振频率间符合较好的线性规律。相较而言,蛋壳密度、气室高度对结构一阶共振频率的影响较小。结论鸡蛋品质特性相关参数(蛋形参数、蛋壳厚度、蛋壳密度和蛋液密度)与其结构动力学响应特性具有较强的关联性。The work aims to study the correlation between the parameters of egg quality and the dynamic behavior of egg, and establish dynamic response model for the detection of egg quality. Base on the knock response detection technology, structural dynamics method and finite element simulation technology were used to quantitatively analyze the relationship between the resonance frequency of whole egg and the physical property parameters of egg quality（shape index, shell thickness, shell stiffness and egg density）. The egg dynamic characteristic parameters were obtained. It was shown that the egg quality parameters in shape index, shell thickness, shell stiffness and egg density were greatly related with the resonance frequency of whole egg. The relation of the first order resonant frequency of whole egg and the eggshell thickness was approximately linear. In contrast, the eggshell density and the air chamber height did not have much influence on its first order resonance frequency. In conclusion, there is a close correlation between the egg quality parameters（such as shape index, shell thickness, shell density and egg density） and the structural dynamic response of whole egg.

关 键 词：鸡蛋品质 结构动力学 有限元 敲击响应检测 

分 类 号：TS253.2[轻工技术与工程—农产品加工及贮藏工程]