Biotribological Characteristic of Peanut Harvesting Impact-Friction Contact under Different Conditions
Biotribological Characteristic of Peanut Harvesting Impact-Friction Contact under Different Conditions
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不同条件下花生收获冲击摩擦接触的生物摩擦学特性
DOI：
10.3390/agronomy12061256
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发表时间：
2022-06-01
期刊：
影响因子：
3.7
通讯作者：
Wang, Bing
中科院分区：
文献类型：
--
作者：
Zhang, Peng;Xu, Hongbo;Wang, Bing
虽然割流摘花生是主要的花生收获方式，但它存在收获损失大以及花生壳破损率高的问题。对花生摘果过程中的冲击 - 摩擦接触特性进行分析对于阐明花生摘果损伤至关重要。本研究以典型花生品种“大白沙”为研究对象，利用花生摘果冲击 - 摩擦试验台在不同条件下研究了花生摘果冲击 - 摩擦的特性。在确定单因素条件后进行了三因素三水平的正交试验。利用微计算机断层扫描、白光干涉仪和光学显微镜对碰撞和摩擦试验前后花生壳的表观形貌进行了对比分析，并讨论了各种因素影响下花生的冲击 - 摩擦损伤特性。结果表明，花生摩擦系数和花生荚果磨损量的影响顺序分别为：侵入深度＞含水量＞接触线速度以及含水量＞侵入深度＞接触线速度。本研究的实验结果和讨论可为花生机械化生产设备的开发和设计提供数据参考。
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.