Journal of Agricultural Science and Technology ›› 2022, Vol. 24 ›› Issue (5): 102-110.DOI: 10.13304/j.nykjdb.2021.0615

• INTELLIGENT AGRICULTURE & AGRICULTURAL MACHINERY • Previous Articles    

Research on Compression Mechanical Characteristics of Sorghum Grains

Yu FENG1(), Shujin QIU1(), Xiangyang YUAN2, Qingliang CUI1, Zhiqiang JI3   

  1. 1.College of Agricultural Engineering, Shanxi Agricultural University, Shanxi Taigu 030801, China
    2.College of Agriculture, Shanxi Agricultural University, Shanxi Taigu 030801, China
    3.Chengde Academy of Agriculture and Forestry Sciences, Hebei Chengde 067000, China
  • Received:2021-07-26 Accepted:2021-11-22 Online:2022-05-15 Published:2022-06-06
  • Contact: Shujin QIU

高粱籽粒压缩力学特性研究

冯禹1(), 邱述金1(), 原向阳2, 崔清亮1, 季志强3   

  1. 1.山西农业大学农业工程学院, 山西 太谷 030801
    2.山西农业大学农学院, 山西 太谷 030801
    3.河北省承德市农林科学院, 河北 承德 067000
  • 通讯作者: 邱述金
  • 作者简介:冯禹 E-mail:945299574@qq.com
  • 基金资助:
    国家谷子高粱产业技术体系项目(CARS-06-13.5-A28);国家重点研发计划项目(2016YFD0701801);山西省高等学校科技创新计划(2021L141);山西省基础研究计划项目(20210302124374)

Abstract:

In order to investigate the mechanical damage of sorghum grain during sowing, harvesting, storage, transportation and processing, this paper studied the compression mechanical properties of sorghum grains. The grains of 3 sorghum varieties, Jinza 34, Liaoza 37 and Xingxiangliang 2 were selected. The varieties, moisture content and compression direction were used as the test factors to study the influence on compression deformation, yield load, and damage energy. The results showed that: variety, moisture content and compression direction had significant effects on the compression deformation, yield load, and damage energy of sorghum grains (P<0.000 1). With the moisture content increased, the yield load showed a downward trend, the compression deformation and the damage energy showed a trend of first decreasing and then increasing. Under the same moisture content, the compression deformation, yield load, and damage energy corresponding to the Z axis direction of 3 varieties of sorghum grains were the largest, followed by the Y axis direction, and the X axis direction was the smallest. Above results provided theoretical references for the development and optimization of equipment for sowing, harvesting, storage and transportation of sorghum.

Key words: sorghum grain, compression, deformation, yield load, damage energy

摘要:

为探索高粱籽粒在播种、收获、储运及加工过程中的机械损伤规律,研究了高粱籽粒的压缩力学特性。选取晋杂34号、辽杂37号、兴湘梁2号3个高粱品种的籽粒为研究对象,研究品种、含水率、压缩方向对压缩变形量、屈服载荷、破坏能等指标的影响规律。结果表明:品种、含水率、压缩方向对高粱籽粒的压缩变形量、屈服载荷、破坏能的影响显著(P<0.000 1);随着含水率的升高,屈服载荷呈下降趋势,压缩变形量和破坏能呈先减小后增大的趋势;相同含水率下,3个高粱品种籽粒的Z轴方向对应的压缩变形量、屈服载荷、破坏能均最大,Y轴方向次之,X轴方向最小。该研究结果为高粱播种、收获及储运等装备的研制优化提供理论参考。

关键词: 高粱籽粒, 压缩, 变形量, 屈服载荷, 破坏能

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