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Alternative TitleGrain Flow Model Based on Kinematic Analysis
王鹤; 胡静涛; 高雷
Source Publication农机化研究
Contribution Rank1
Funding Organization国家高技术研究发展计划项目(2013AA040403)
Keyword谷物流量模型 运动学分析 冲击力
Other AbstractCurrently the grain flow models that were used for grain flow estimation were mainly empirical models. These models were difficult to meet the requirements of robust and versatility. A grain flow model was established based on kinematic analysis to accurately estimate mass flow. The model considered the external factors to grain flow measurement, such as the elevator rotation speed,the mechanical structure parameters,the relative positions parameters and grain characteristic parameters,and introduced relevant parameters that reflected changes of external factors. The relationship between the impact force and grain flow was nonlinear due to the variation of the external factors,a nonlinear least squares method was used to identify the grain characteristic parameters. An experimental platform was built to for the grain characteristic parameters and model validation. Three weighting sensors were mounted on the weighting bin in the experimental platform to calibrate grain flow sensor and verify the accuracy of grain flow sensor. A valve plate was inserted in the bottom of the feed bin of the experimental platform. The feed flow could be controlled by adjusting opening of the valve plate. Experimental results showed that the model can accurately describe the relationship between grain flow and impact, the maximum measurement error did not exceed 2.5%. The model was superior to the empirical models that were usually used,and is with versatility and robustness.
Document Type期刊论文
Corresponding Author胡静涛
Recommended Citation
GB/T 7714
王鹤,胡静涛,高雷. 基于动力学分析的谷物流量模型[J]. 农机化研究,2016(11):15-22.
APA 王鹤,胡静涛,&高雷.(2016).基于动力学分析的谷物流量模型.农机化研究(11),15-22.
MLA 王鹤,et al."基于动力学分析的谷物流量模型".农机化研究 .11(2016):15-22.
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