Study on the Wind Cleaning System for Threshing Control of Combine Harvester

联合收割机脱粒控制风清系统的研究

• 批准号: 15580222
• 负责人: INOUE Eiji
• 金额: $ 2.37万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15580222/
• 关键词: combine harvester; winnowing; array of wind vectors; PIV; FVM; simulation; diffusion force

The control experiments using a grain sensor have conducted. The investigations were attempted by means of experimentation and theoretical examination, the aerodynamics of grain acted upon by the winnowing wind. Estimation the trajectory of a single grain and grains layer by conducting experiments and solving equations for dynamic balance was attempted. Moreover, the particle image velocimetry and the finite volume method were used to attempt visualization of the cleaning wind flow in order to improve the effectiveness of the winnowing wind.Simulating the trajectory of a grain of paddy in the winnowing chamber was aimed. The drag and lift coefficients of a grain of paddy were calculated and changing these coefficients due to changes in the direction of the grain were examined. As a result, the drag and lift coefficients can be expressed as a trigonometric function of the direction of the grain.The simulations of a grain and the layer in a wind tunnel with a known and stable wind velocity were attempted in order to clarify the trajectory. Dynamic equations for grains of paddy were formulated by considering all forces affecting the grain blown by the wind. It was found that it was possible to simulate the trajectory of a grain.Array of vectors for the wind flow in the winnowing chamber was investigated in order to improve the winnowing accuracy. The vectors generated by means of the FVM and PIV method. It was found that the results of the analysis using FVM and PIV coincide with results obtained by the anemometer, The wind maps obtained by these methods are expected to provide essential data for understanding the characteristics of the trajectories of grain and chaff These results demonstrate that the performance of the cleaning section can be estimated from the initial design.

利用颗粒传感器进行了控制实验。本文采用实验和理论研究的方法，研究了簸扬风对颗粒空气动力学的影响。尝试通过实验和求解动态平衡方程来估计单粒和粒层的运动轨迹。此外，为了提高除尘器的除尘器除尘效果，采用粒子图像测速法和有限体积法对除尘器除尘风进行了可视化研究。目的是模拟水稻粒在开窗室内的运动轨迹。计算了水稻籽粒的阻力系数和升力系数，并考察了籽粒方向变化对阻力系数和升力系数的影响。因此，阻力系数和升力系数可以表示为晶粒方向的三角函数。在已知稳定风速条件下，对颗粒和层在风洞中的运动轨迹进行了模拟。考虑风吹动籽粒的各种作用力，建立了水稻籽粒的动力学方程。人们发现，模拟颗粒的运动轨迹是可能的。为了提高筛分精度，研究了筛分室内的风场向量阵列。利用FVM和PIV方法生成的矢量。结果表明，利用FVM和PIV的分析结果与风速计的分析结果一致，这些方法获得的风图有望为理解颗粒和箔条的轨迹特征提供重要的数据，这些结果表明，清洗段的性能可以从初始设计中估计出来。

项目成果

Using Particle Image Velocimetry to Measure the Wind in a Winnowing Chamber

使用粒子图像测速仪测量风选室中的风

• 发表时间: 2003
• 期刊: Journal of the Faculty of Agriculture Kyushu University 48(1・2)
• 作者: Masami Matsui;Eiji Inoue;Tomoko Kuwano;Ken Mori;Masami MATSUI et al.;Masami MATSUI et al.
• 通讯作者: Masami MATSUI et al.

Masami MATSUI: "Study on the Flying Paddy Acting the Cleaning Wind (Part 2)"Journal of Japanese Society of Agricultural Machinery. 66(1). 49-54 (2004)

松井雅美：《飞翔的稻田发挥清洁风作用的研究（第2部分）》日本农业机械学会会刊。

有限体積法によるコンバイン脱穀部選別風速の数値流体解析

联合收割机脱粒段分选风速有限体积法计算流体分析

• 发表时间: 2005
• 期刊: 農業機械学会誌 67(1)
• 作者: 盛田清秀;盛田清秀;Kiyohide MORITA;盛田清秀;盛田清秀;盛田清秀;盛田清秀;Kiyohide MORITA;Kiyohide MORITA;八木宏典編著(盛田清秀分担執筆);盛田清秀;金沢夏樹編集代表(盛田清秀分担執筆);盛田清秀;松井 正実 他
• 通讯作者: 松井 正実 他

Numerical Analysis of Cleaning Wind in a Winnowing Chamber Using The Finite Volume Method

风选室清选风的有限体积法数值分析

• 发表时间: 2005
• 期刊: Journal of JSAM. 67(1)
• 作者: Masami MATSUI;Eiji INOUE;Ken MORI;Yuko FURUNO;Yasumaru HIRAI
• 通讯作者: Yasumaru HIRAI

Masami MATSUI: "Using Particle Image Velocimetry to Measure the Wind in a Winnowing Chamber"Journal of the Faculty of Agriculture Kyushu University. 48(1・2). 187-193 (2003)

松井正美：“利用粒子图像测速法测量风选室中的风”九州大学农学院学报48（1・2）（2003）。