基于ANSYS和EDEM的巨菌草茎秆力学特性试验研究  

Study on Giant Fungus Grass Stalk Mechanical Properties of ANSYS and EDEM

作　　者：郑邵秋 张彩虹[2,3] 王国强 姜鲁艳 Zheng Shaoqiu;Zhang Caihong;Wang Guoqiang;Jiang Luyan(College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Research Institute of Agricultural Mechanization,Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;Xinjiang Facilities Agriculture Engineering and Equipment Technology Research Center,Urumqi 8300911,China)

机构地区：[1]新疆农业大学机电工程学院,乌鲁木齐830052 [2]新疆农业科学院农业机械化研究所,乌鲁木齐830091 [3]新疆设施农业工程与装备技术研究中心,乌鲁木齐8300911

出　　处：《农机化研究》2023年第10期151-158,165,共9页Journal of Agricultural Mechanization Research

基　　金：自治区重点研发计划项目(2018B01002-3)。

摘　　要：对巨菌草茎秆设计正交试验进行巨菌草力学特性分析,再结合ANSYS、EDEM软件对茎秆进行受力仿真,为后续巨菌草机械化种植、收获、仓储的机器设计及优化提供基础的物料力学特性数据,为进一步研究奠定基础。在茎秆拉伸、压缩、弯曲过程中,对巨菌草茎秆含水率、有/无间节、压缩方向、茎秆试验样本跨度及试验机加载速度等影响因素中进行显著性分析并找出最佳值,采用SPSS软件对试验数据进行分析并确定因素参数的显著性关键。由拉伸试验可以看出:茎秆有无间节对拉伸强度影响最大,其次是茎秆的含水率,而试验机的加载速度对拉伸强度的影响几乎可以忽略。由压缩试验可以看出:轴向压缩强度远大于径向压缩,含水率高低、有无间节对于压缩强度也有一定的影响;而在弯曲试验中,试验样本跨度明显是对弯曲强度最主要的影响因素,远比茎秆含水率、有无间节更大。通过试验数据,进一步计算得出相应的强度、弹性模量等反映材料特性的力学性能指标,为后续研究提供参考。By analyzing the orthogonal experiment of giant fungus grass stalk design and simulating the straw force combined with ANSYS,EDEM software,we provide basic material mechanical characteristic data for the subsequent mechanical planting,harvesting and optimization of giant fungus grass and storage,and provide the foundation for further research.The analysis of the significance of several factors affecting the mechanical properties of the giant fungus straw,the significance of the water content,section,compression direction,stalk sample span and loading speed of the test machine,was adopted SPSS software analyzes the experimental data,and determine the significance of the parameters:the tensile test,the tensile strength,almost ignore the influence of the axial compression strength in the compression test is much greater than the radial compression,and in the bending test test sample span is obviously the most important influencing factor on the bending strength,far greater than the straw moisture content,the intersection.The corresponding ones were further calculated from the test data The mechanical performance indicators such as strength and elastic modulus that reflect the characteristics of the material provide the basis for subsequent studies.

关 键 词：巨菌草茎秆 力学特性 正交试验 ANSYS EDEM 

分 类 号：S183[农业科学—农业基础科学]