基于有限元法的禽蛋检测机构蛋壳破损率研究

为了提高禽蛋品质在线检测机构的检测效率,降低蛋壳在检测中因机械振动产生的破损率,利用有限元分析软件ANSYS对检测机构的关键部件双圆弧式滚筒和机架进行模态分析,并经过试验验证。结果表明:当检测机构的振动频率低于971.28Hz时,不会引起双圆弧式滚筒组的振动,蛋壳的破损率降低;机架自振频率相对较低,易引起振动,所以检测机构的减振设计主要以机架为主;利用有限元软件ANSYS的模态分析功能分析机构振动特性的方法是可靠的、快捷的,为机构其它构件的振动分析和优化设计提供了依据。

Study on eggshell breakage rate of egg detection mechanism based on FEM

In order to improve the detection efficiency of egg quality on-line detection mechanism, and reduce eggshell breakage rate in the detection because of mechanical vibration generated, the modal analysis of the detection mechanism key components of the double circular arc cylinder and frame was carried out, by using the finite element analysis software ANSYS, and then it was tested by experiment. The results showed that the vibration frequency of the detection mechanism, lower than 971.28 Hz, could not cause vibration of double circular drum group, and this helped to reduced the eggshell breakage rate. Moreover, the frame frequency was found relatively low and easy to cause vibration, so the vibration reduction design of the detection mechanism was mainly based on the frame. It was a reliable and rapid method to analyze the vibration characteristics of mechanism by using the modal analysis of finite element software ANSYS, and this laid the foundation for the vibration analysis and optimum design of other components of the detection mechanism.