Deep-tillage rotavator technology based on smoothed particle hydrodynamics simulation

被引：0
|
作者：
Zhong J. [1 ]
Jiang J. [1 ]
Jiang T. [1 ]
Zhao Z. [1 ]
Qiao X. [1 ]
Zhang X. [1 ]
机构：
[1] College of Mechanical Engineering, Zhejiang University of Technology
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2010年 / 46卷 / 19期
关键词：
3D numerical simulation; Contrarotation; Rotavator; Soil mechanics;
D O I：
10.3901/JME.2010.19.063
中图分类号：
学科分类号：
摘要：
In view of the characteristic of china southern hilly soils, especially compacted soil of tea garden, a deep tillage method and a jointed mechanism made up of an up-cut tillage tool and a down-cut tillage tool, is proposed and designed for harden soil deep-tilling with low-power motor. In order to reduce the power of small agricultural machinery dealing with deeply-loosening tillage in hardened soil, a soil reverse-rotary tilling process simulation and a finite element analysis model of soil high-speed cutting are studied by using smoothed particle hydrodynamics finite element method. Accordingly, structural parameters of reverse-rotary tillage tool and the working parameters of reverse-rotary tillage mechanism are studied and optimized by using orthogonal experimental method and FEA numerical simulation technology. The results show that it is perfectly feasible to apply the proposed composite tillage method and jointed mechanism on harden soil deep-tilling with low power motor, and for a soil deep-tilling process, proper structural parameters of tillage tool and working speed can reduce the power consumption of the reverse-rotary tillage mechanism. © 2010 Journal of Mechanical Engineering.
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页码：63 / 69
页数：6
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