| 基于ANSYS／LS_DYNA的螺旋刀具土壤切削的数值模拟 |
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| 引用本文： | 马爱丽,廖庆喜,田波平,黄海东,舒彩霞,周善鑫,林新.基于ANSYS／LS_DYNA的螺旋刀具土壤切削的数值模拟[J].华中农业大学学报,2009,28(2). |
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| 作者姓名： | 马爱丽 廖庆喜 田波平 黄海东 舒彩霞 周善鑫 林新 |
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| 作者单位： | 华中农业大学工程技术学院,武汉,430070 |
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| 基金项目： | 国家科技支撑计划，教育部新世纪优秀人才与计划项目 |
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| 摘 要： | 选择黄棕壤为土壤类型,观察螺旋刀具对土壤的破坏过程,建立了螺旋刀具的实体模型和MAT147(MAT FHWA_SOIL)的土壤材料模型;借助有限元ANSYS/LS_DYNA(显式非线性动力分析有限元软件)模块,构建了螺旋刀具切削土壤的有限元模型,并进行螺旋刀具切削土壤过程的三维动力学仿真,得出了开沟机螺旋刀具切削土壤功耗的大小和螺旋叶片的等效应力(von Mises stress)的变化规律及其力学特性.
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| 关 键 词： | 螺旋刀具 土壤 切削 显式非线性动力分析有限元软件 数值模拟 |
Numerical Simulation of Soil Cutting by Spiral Cutter on the Basis of ANSYS/LS_DYNA |
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| MA Ai-li,LIAO Qing-xi,TIAN Bo-ping,HUANG Hai-dong,SHU Cai-xi,ZHOU Shan-xin,LIN Xin.Numerical Simulation of Soil Cutting by Spiral Cutter on the Basis of ANSYS/LS_DYNA[J].Journal of Huazhong Agricultural University,2009,28(2). |
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| Authors: | MA Ai-li LIAO Qing-xi TIAN Bo-ping HUANG Hai-dong SHU Cai-xi ZHOU Shan-xin LIN Xin |
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| Institution: | College of Engineering and Technology;Huazhong Agricultural University;Wuhan 430070;China |
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| Abstract: | FEM has beenused to develop the numerical simulation of working process of operating machines,and it has important theoretical value and practical significance for a firm understanding of power consumption and mechanism of interaction about the machines.This paper studied the process of spiral cutters soil cutting.Yellow palm soil was chosen as soil type,and the solid model of cutter and MAT147(MAT_FHWA_SOIL) soil material model were established.Using finite element ANSYS/LS_DYNA module,a finite element mod... |
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| Keywords: | spiral cutter soil cutting ANSYS/LS_DYNA numerical simulation |
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