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基于ANSYS/LS-DYNA的仿生松土镢有限元分析

发表时间:2015-05-15  浏览量:2107  下载量:683
全部作者: 林玉龙,尹丽娟
作者单位: 中国农业大学工学院
摘 要: 为进一步提高松土质量,提出了一种仿生松土镢,以蝼蛄前足体外侧爪趾为仿生对象对传统松土镢进行改进设计,用Pro/E建立仿生松土镢的三维模型,最后利用ANSYS/LS-DYNA模块进行传统松土镢和仿生松土镢切削土壤、力学性能的有限元仿真对比实验。结果表明:仿生松土镢的最大等效应力-变形量、总切削阻力和支座反力均小于传统松土镢,安全系数大于传统松土镢;仿生松土镢较传统松土镢作业省力且具有一定的减阻能力和较好的力学性能,能减小能耗,提高松土效率。
关 键 词: 农业工程;仿生松土镢;有限元仿真实验;切削阻力;力学性能
Title: Finite element analysis of bionic plough based on ANSYS/LS-DYNA software
Author: LIN Yulong, YIN Lijuan
Organization: College of Engineering, China Agricultural University
Abstract: In order to improve the cultivating quality, this paper proposes a kind of bionic plough, takes Gryllotalpa’s claw toes of its front feet as the bionic object, establishes the three-dimensional model of bionic plough using Pro/E, performs the traditional plough and bionic plough finite element simulation contrast experiment of cutting soil and mechanical properties using ANSYS/LS-DYNA. Based on the simulation results, the maximum Von Mises stress, the deformation, total cutting resistance and support reaction of the bionic plough are less than the traditional plough’s, correspondingly the safety factor is higher than the traditional plough’s. Compared with the traditional plough, bionic plough has better drag reduction capability and mechanical properties, which can reduce energy consumption and improve the scarification efficiency.
Key words: agricultural engineering; bionic plough; finite element simulation experiment; cutting resistance; mechanical properties
发表期数: 2015年5月第9期
引用格式: 林玉龙,尹丽娟. 基于ANSYS/LS-DYNA的仿生松土镢有限元分析[J]. 中国科技论文在线精品论文,2015,8(9):940-947.
 
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