| 微耕机水田旋耕刀片切土作业过程动力学仿真 |
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| 引用本文： | 杨望,路宏,杨坚,杨红艳.微耕机水田旋耕刀片切土作业过程动力学仿真[J].农机化研究,2016(6):74-77. |
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| 作者姓名： | 杨望 路宏 杨坚 杨红艳 |
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| 作者单位： | 广西大学机械工程学院,南宁,530004 |
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| 基金项目： | 国家自然科学基金项目(51365005);玉林市科技项目(玉市校科产201306802) |
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| 摘 要： | 针对微耕机旋耕作业部件与水田土壤间的作用机理研究匮乏,作业过程出现碎土性能差、效率低、和功耗大等问题,以1WGQ4型微耕机为对象,采用有限元法(FEM)和光滑粒子流体动力学方法(Smoothed Particle Hydrodynamics,SPH)的耦合方法,构建土壤-旋耕作业部件系统的动力学仿真模型,在细观上对旋耕作业部件刀片与水田土壤间的作用过程进行动力学分析。结果表明:构建的土壤-旋耕作业部件系统的动力学仿真模型精度高;水田旋耕刀片向后抛起的土壤少,与挡板碰撞破碎的土壤少,水田微耕机采用前耕后驱设计方案有利于提高其碎土性能。
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| 关 键 词： | 微耕机 水田 旋耕 动力学仿真 |
Dynamic Simulation of Rotary Tillage Blade' s Cutting Process on Paddy Field |
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| Yang Wang;Lu Hong;Yang Jian;Yang Hongyan.Dynamic Simulation of Rotary Tillage Blade' s Cutting Process on Paddy Field[J].Journal of Agricultural Mechanization Research,2016(6):74-77. |
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| Authors: | Yang Wang;Lu Hong;Yang Jian;Yang Hongyan |
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| Institution: | Yang Wang;Lu Hong;Yang Jian;Yang Hongyan;College of Mechanical Engineering,Guangxi University; |
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| Abstract: | Interaction mechanism of rotary tiller ' s rotary operation components and soil is unknown on paddy field .In the operation process , poor pulverizing ability and stability , low efficiency , and large power consumption occurs ."1 WGQ4" micro-tillage machine was used as the study object .Dynamics simulation model of soil -rotary tillage opera-tion components system was established .The coupling method of finite element method ( FEM ) and smooth particle hy-drodynamics method ( Smoothed Particle Hydrodynamics , SPH) was used in the model .The dynamic analysis of interac-tion process of rotary tillage blade and soil was studied in meso-level.The results show that the dynamics simulation model has high precision .The soil was less thrown up backward by rotary blade , which decreases the impact pulverizing effect of the soil and flapper .Using tilling at first and then driving , the pulverizing effect of paddy-field rotary tiller can be increased . |
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| Keywords: | rotary tiller paddy field rotary tillage blade dynamics simulation |
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