期刊论文

Experimental Study on Mechanics Characteristic for Mature Rape Stalk

中文

农机化研究

1003-188X

2009

02

147-149

10.13427/j.cnki.njyi.2009.02.039

湖南省农机局科技计划(湘农机计函[2006]62号)；

本校为第一机构

为了给高效、低耗油菜联合收割机切割装置的设计提供理论依据，以“湘杂油743”成熟期茎秆为试验材．料，分别测定其弹性模量E、剪切弹性模量G、剪切力F和含水率。试验结果表明：成熟期油菜茎秆弹性模量E稳定在160MPa，剪切弹性模量G稳定在11kPa；油菜茎秆的弹性模量和剪切弹性模量随茎秆含水率的减小而增大，第1分支处的剪切力随含水率的下降而先上升后下降，最大值为115N。同时，拟合了本品种茎秆直径随沿轴线高度变化的关系方程，并得到第一分支处的平均直径为11．09mm。

In order to offer theory consignment for designing the high - performance and low - loss cutting mechanism of rape combine, the ＂xiangzayou743＂ during the maturation period as the testing materials was studied. In several tested the Modulus of elasticity E, Cutting - Modulus of elasticity G, Shearing Force F and Percentage of moisture. The result show that ： the Modulus of elasticity E of rape stalk during the maturation period stead at , the cutting - Modulus of elasticity G stead at ;The E and G increase with the percentage of moisture＇s ...