山西农业大学学报（自然科学版）2019，Vol.39Issue(6)：107-112,6.DOI:10.13842／j.cnki.issn1671‐8151.201905054
不同龄期柠条茎秆的拉剪强度试验与分析
Shear strength of stalks of Caraganakorshinskii at different ages
摘要
Abstract
In order to optimize the working conditions of Caraganakorshinskii harvester ,the biomechanical properties of C .korshinskii stalks at different sampling positions and different grow th age were studied .[Methods] Tensile and shear tests w ere carried out with C .korshinskii stalk samples using a completely randomized block design method.[Results] The average tensile strength of C .korshinskii stalks was determined at 138 N·mm －2 ,and the aver‐age shear strength w as 35 N·mm －2 .The tensile rupture strength of C .korshinskii stalk was closely related to both the sampling position and grow th age ,however ,the influence of grow th age on its test index was greater than that of the sampling position .With the increase of grow th age the tensile strength of C .korshinskii stalks was increased.T he shear strength of stalks was also influenced by the grow th age ,but not the sampling position .[Conclusion] When the combine harvester works in the field for C .korshinskii harvest ,the plant grow th age should be considered as the major factor followed by the cutting position.T his study provided a theoretical basis for the design and operation of C .kor‐shinskii harvester in the field.关键词
柠条茎秆/拉伸强度/剪切强度/生长年龄/平茬位置Key words
Caraganakorshinskii stalk/Tensile strength/Shear strength/Grow thage/Cutting position分类
农业科技引用本文复制引用
邱述金,崔清亮,武志明,李晓斌,郭玉明..不同龄期柠条茎秆的拉剪强度试验与分析[J].山西农业大学学报（自然科学版）,2019,39(6):107-112,6.基金项目
国家重点研发计划(2016YFD0701801) （2016YFD0701801）
山西农业大学博士科研启动项目(2015YJ01) （2015YJ01）
