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聯(lián)合收獲機(jī)縱向軸流脫粒谷物運(yùn)動(dòng)仿真與試驗(yàn)
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Simulation and Testing of Cereal Motion in Threshing Unit of Combine Harvester with Axial Feeding
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    摘要:

    縱向軸流聯(lián)合收獲機(jī)因其在脫凈率,、破碎率,、分離率等方面的優(yōu)勢(shì)近年來(lái)得到大力推廣,。以縱向軸流滾筒為研究對(duì)象,，在合理假設(shè)的基礎(chǔ)上,，對(duì)谷物運(yùn)動(dòng)受力狀態(tài)加以分析,，根據(jù)給出的谷物喂入段,、脫離分離蓋板側(cè)及凹板側(cè)各段的運(yùn)動(dòng)狀態(tài)非線性微分方程,，采用高階龍格-庫(kù)塔數(shù)值方法,，開(kāi)發(fā)出谷物脫粒過(guò)程運(yùn)動(dòng)狀態(tài)分析軟件,，對(duì)谷物運(yùn)動(dòng)狀態(tài)進(jìn)行數(shù)值仿真。對(duì)比高速攝像試驗(yàn)分析結(jié)果,，驗(yàn)證了數(shù)值仿真結(jié)果的有效性,，為縱向軸流滾筒的設(shè)計(jì)提供了依據(jù)。

    Abstract:

    Combine harvester with axial feeding threshing roller was rapidly popularized in recent years due to its high threshing rate, low broken rate and high separating rate. The movement of cereal passing through the axial feeding threshing roller was analyzed based on reasonable assumptions. According to the nonlinear equations of cereal motion in each sector, feeding zone, concave side and cover side of threshingseparating zone, software which could analyze cereal state of motion was developed based on numerical method of high order Runge-Kutta. The effectiveness of numerical simulation result was verified compared with highspeed photography testing results. This study laid the foundation for the design of axial feeding threshing roller.

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楊方飛,閻楚良,楊炳南,衣淑娟,姜 楠.聯(lián)合收獲機(jī)縱向軸流脫粒谷物運(yùn)動(dòng)仿真與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(12):67-. Yang Fangfei, Yan Chuliang, Yang Bingnan, Yi Shujuan, Jiang Nan. Simulation and Testing of Cereal Motion in Threshing Unit of Combine Harvester with Axial Feeding[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(12):67-.

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