基于压痕加载曲线的豌豆籽粒硬度测定方法优化

doi:10.13733/j.jcam.issn.2095-5553.2024.10.017

摘要/Abstract

摘要： 为确定基于压痕加载曲线测定豌豆籽粒硬度的最佳作业参数组合，以豌豆为研究对象，以压入深度、压头类型、待测表面粗糙度为自变量，豌豆硬度测定值为响应值，根据正交设计原理，设计三因素三水平正交试验，采用Design-Exporter数据处理软件进行极差、方差分析，对各因素进行探究，并利用有限元法对试验研究结果进行验证。结果表明，测量过程中最佳的作业参数为压入深度0.5 mm，压头类型为45°三棱锥，待测籽粒表面粗糙度为100目。有限元法与实际试验测定结果表现一致，即45°三棱锥压头平均误差最小。

关键词: 豌豆, 硬度测定, 压痕曲线, 正交试验, 有限元法

Abstract: In order to determine the best combination of operation parameters for the determination of pea grain hardness based on indentation loading curve, a three‑factor and three‑level orthogonal test was designed according to the principle of orthogonal design, taking pea as the research object, with pressing depth, indenter type and surface roughness to be measured as independent variables and pea hardness measured as response value. The data processing software Design-Exporter was used for range analysis and variance analysis to explore each factor, and the finite element method was used to verify the experimental research results. The results showed that the best operating parameters in the measurement process were the pressing depth of 0.5 mm, the type of indenter was 45° triangular pyramid, and the surface roughness of the grain to be measured was 100 mesh. The finite element method is consistent with the actual test results, that is, the average error of 45° triangular pyramid indenter is the smallest.

Key words: pea, hardness measurement, indentation curve, orthogonal experiment, finite element method

中图分类号:

S23-0

陈虎虎, 宋学锋, 张莉茹, 张锋伟, 戴飞. 基于压痕加载曲线的豌豆籽粒硬度测定方法优化[J]. 中国农机化学报, 2024, 45(10): 114-118.

Chen Huhu, Song Xuefeng, Zhang Liru, Zhang Fengwei, Dai Fei. Optimization of pea seed hardness measurement method based on indentation loading curve[J]. Journal of Chinese Agricultural Mechanization, 2024, 45(10): 114-118.

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