基于ANSYS/LS-DYNA的仿生松土镢有限元分析
首发时间:2014-10-14
摘要:松土机的主要工作部件是松土镢,松土镢对土壤起切削作用,在松土过程中起着关键的作用,因此松土镢的设计,直接影响到松土质量。本文提出一种仿生松土镢,以蝼蛄前足爪趾为仿生对象对传统松土镢进行改进设计,用Pro/E建立了仿生松土镢的三维模型,最后利用ANSYS/LS-DYNA模块进行了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总切削阻力、支座反力、最大等效应力和变形量都要小于传统松土镢,安全系数大于传统松土镢;仿生松土镢较之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。
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Finite element analysis of bionic plough based on ANSYS/LS-DYNA software
Abstract:plough is the main working part of scarifier, it cuts the soil and plays a key role in the pulverizing process, so the design of plough directly affects the cultivating quality. This paper proposes a kind of bionic plough, taking gryllotalpa's claw toes of its front feet as the bionic object, establishing the model of bionic plough using Pro/E, doing the traditional plough and bionic plough finite element simulation contrast experiment of cutting soil and mechanical properties used ANSYS/LS-DYNA . Results shows that the maximum von mises stress, the deformation and total cutting resistance of bionic plough is less than traditional plough's and the safety factor is bigger than traditional plough's. Compared with the traditional plough, bionic plough has certain drag reduction capability and good mechanical properties, which can reduce energy consumption and improve the efficiency of scarification.
Keywords: bionic plough finite element simulation experiment cutting resistance mechanical properties
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No.4612620100812314****
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