农业工程学报2016，Vol.32Issue(9)：22-29,8.DOI:10.11975/j.issn.1002-6819.2016.09.004
工业大麻茎秆力学模型的试验分析
Experimental analysis on mechanical model of industrial hemp stalk
摘要
Abstract
In order to provide the mechanical parameters for the research on industrial hemp harvest machinery, the mechanical model for industrial hemp stalk is supposed with the knowledge of mechanics of composite material in the paper. To gain the mechanical parameters, the mechanical tests like tensile test, compressive test and bending test in the light of various directions and different fractions is carried out by utilizing the WDW-10 universal testing machine. All elastic parameters of mechanical model of industrial hemp stalk were achieved through analysis and calculation with composite material theory. All of the parameters were experimentally determined for industrial hemp stalks in order to find methods for mechanical harvest with minimum energy consumption. The xylem axis elasticity modulus is 1 343.5 MPa. The phloem radial elasticity modulus is 3 607.5 MPa. The stalk axis elasticity modulus are 1 743.50 MPa. The stalk radial compressive elasticity modulus is 88 MPa. The xylem shear modulus is 33.52 MPa. The stalk shear modulus is 31.99 MPa. According to the experiment, the hemp stalk has excellent mechanical properties, especially the performance of the phloem fiber. The test result of experiment shows that radial parameters of industrial hemp stalk accord with characteristics of composite material. It is a significant guidance in hemp cutter design. This study provided a theoretical foundation for in-depth exploration on hemp cutter design and optimization to make the hemp harvester satisfy the working requirement of high quality and low consumption.关键词
模型/复合材料/弹性/工业大麻/茎秆/试验Key words
models/composite materials/elasticity/industrial hemp/stalk/experiments分类
农业科技引用本文复制引用
周杨,李显旺,沈成,田昆鹏,张彬,黄继承..工业大麻茎秆力学模型的试验分析[J].农业工程学报,2016,32(9):22-29,8.基金项目
Foundation itemFund of China Agricultural Research System (CARS-19-E22) （CARS-19-E22）
The Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences (ASTIP，CAAS) （ASTIP，CAAS）
