华南农业大学学报2017，Vol.38Issue(3)：106-111,6.DOI:10.7671/j.issn.1001-411X.2017.03.017
基于有限单元法的芦蒿茎秆力学特性分析
Finite element analysis of mechanical properties of Artemisia selengensis stalk
摘要
Abstract
[Objective] To establish a stalk flexible model of Artemisia selengensis.[Method]Based on the physical parameters of the stalk of A.selengensis, the finite element model of stalk was established by using the ANSYS software.The axial and radial mechanical properties of A.selengensis stalk at different growth positions under compression were studied.The model calculation value and experimental value were analyzed and compared.[Result]The maximum deviation of model calculation value and experimental value was 14.46%.A.selengensis stalk had anisotropic characteristics with its axial compression mechanical properties being much better compared to the radial.At three different positions, the stem breakage occurred on the edges of both ends of the loading surface under radial compression,while under axial compression, the stem breakage occurred on the loading surface, and the stress gradually receded from close to the loading area to surroundings.[Conclusion]The mechanical properties of A.selengensis stalk can be analyzed by model simulation, and the results can provide theoretical references for reducing mechanical damage during harvesting, transportation, processing and storage of A.selengensis and for designing A.selengensis harvest machine.关键词
芦蒿茎杆/有限单元法/力学特性/模型Key words
Artemisia selengensis stalk/fimte element method/mechanical property/model分类
农业科技引用本文复制引用
施印炎,李成光,汪小旵,章永年,OLUOCH Morice Odhiambo..基于有限单元法的芦蒿茎秆力学特性分析[J].华南农业大学学报,2017,38(3):106-111,6.基金项目
江苏省科技支撑计划(BE2015334) （BE2015334）
江苏省农机三新工程(NJ2014-08) （NJ2014-08）
江苏省普通高校研究生科研创新计划(KYLX16_1017) （KYLX16_1017）
