农业现代化研究2001，Vol.22Issue(2)：111-114,125,5.
轴流脱粒过程的动力学仿真研究
Simulation Research on the Dynamics in Axial Threshing Process.
张认成 1桑正中2
作者信息
- 1. 中国科学技术大学经济技术学院,
- 2. 江苏理工大学机械工程学院,
- 折叠
摘要
Abstract
Based on the principle of the varied mass system , the no-linearmathem atical model of the crop mechanics in the axial threshing space has been set up. The result of simulation research and theoretical analysis on the model show th at both the counteracting force of the threshing device and striking force of th e tooth are complicated cycle functions to the angle displacement. Every cycle o f these functions can been divided into two parts, viz.striking process and loos ening process. The thresh is carried out mainly in the first half cycle, where t he centrifugal force changes from minimum to maximum, and the striking force doe s from maximum to minimum. In the second half cycle stem is loosened completely so that the seed can been separated easily. At the same time, the angle velocity of the crop is decreased to minimum, which makes it possible for the crop to ga in great striking force in the next cycle. The two processes carried through one after the other makes thresh and separation finished successfully.关键词
联合收割机/轴流脱粒/动力学/仿真分类
农业科技引用本文复制引用
张认成,桑正中..轴流脱粒过程的动力学仿真研究[J].农业现代化研究,2001,22(2):111-114,125,5.
