玉米鲜秸秆力学特性试验研究  

Experimental Study on Mechanical Properties of Fresh Corn Straw

作　　者：王帅[1] 张彬[1] 李显旺[1] 沈成[1] 田昆鹏[1] 黄继承[1] 

机构地区：[1]农业部南京农业机械化研究所,南京210014

出　　处：《农机化研究》2018年第3期171-175,180,共6页Journal of Agricultural Mechanization Research

基　　金：江苏省科技计划项目(BE2015727);中国农业科学院科技创新工程项目(2016-2020)

摘　　要：为了提供玉米秸秆打捆装置的力学参数及理论基础,根据玉米茎秆的几何尺寸构建了玉米茎秆的几何模型,并运用复合材料力学理论建立其力学模型;利用万能试验机对玉米鲜秸秆进行弯曲、有节轴向压缩、有节径向压缩、无节轴向压缩及无节径向压缩等力学特性试验,得出其载荷-位移等曲线,并获得相关力学参数数据。试验结果表明:玉米鲜秸秆压缩所需要的力大于弯曲所需的力;此外,有节茎秆较无节茎秆所需的压缩力更大,因此在设计压缩机构时需考虑节间对打捆装置的影响。In order to provide theoretical basis and mechanical parameters of corn straw bundling device,this paper constructed the geometric model according to the geometric size of corn stalk of corn stalk,and using the theory of composite mechanics establishes its mechanics model; the mechanical properties of fresh corn straw were tested by universal testing machine,and the curves of load displacement were obtained,and obtain the data related mechanical parameters. The test results showed that straw compression force required is greater than the bending force required; in addition,there is no section of stem stem section required greater compression force,so the design should consider the compression mechanism of internode bundling device.

关 键 词：玉米鲜秸秆 压缩 弯曲 

分 类 号：S216[农业科学—农业机械化工程] S513[农业科学—农业工程]