数字农科院2.0

Biotribological Characteristic of Peanut Harvesting Impact-Friction Contact under Different Conditions

文献类型： 外文期刊

作者： Peng Zhang;Hongbo Xu;Xiaoru Zhuo;Zhichao Hu;Chenglong Lian;Bing Wang

作者机构：

关键词： coefficient of friction;contact damage;orthogonal test;peanut harvest;wear loss

期刊名称： Agronomy

ISSN： 2073-4395

年卷期： 2022 年 12.0 卷 6 期

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摘要： Although cutting flow peanut-picking is the main peanut harvesting method, it has the problems of a large harvest loss and a high damage rate of peanut shells. The analysis of impact-friction contact characteristics during peanut fruit picking is crucial to illustrate peanut fruit picking damage. A typical peanut variety, “Dabaisha”, was considered in this study. The characteristics of peanut-picking impact-friction were studied using a peanut-picking impact-friction test bench under different conditions. An orthogonal test with three factors and levels was performed after the single-factor condition was determined. The apparent morphologies of peanut shells before and after the collision and friction tests were compared and analyzed using micro-computed tomography, white-light interferometry, and optical microscopy, whereas the impact-friction damage characteristics of peanuts under the influence of various factors were discussed. The results show that the orders of influence of the coefficient of friction of peanuts and wear loss of peanut pods were as follows: invasion depth > moisture content > contact linear velocity and moisture content > invasion depth > contact linear velocity, respectively. The experimental results and discussion in this study can provide a data reference for developing and designing peanut mechanization production equipment.

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