Authors

Abstract

This study addresses the issue of corn grain damage, which limits the efficiency of mechanized corn harvesting. The characteristics and distribution of corn grain surface damage resistance (CDDRS-SCK) were investigated. The "vulnerable" surface of the corn grain was selected for damage testing. The results revealed significant variations in damage resistance across different surfaces and locations of the corn grains. A regression model for damage resistance strength, based on surface position, was developed. Additionally, the impact of grain damage resistance on threshing damage was compared and analyzed for different threshing devices, in accordance with their working principles. This research provides theoretical insights and data support for the development of corn mechanized threshing technology and equipment.

Abstract in Chinese

针对玉米籽粒损伤制约玉米籽粒机械化收获的问题。本文开展了对玉米籽粒表面抗损伤强度(CDDRS-SCK)的特征及分布研究。选取“易伤”表面进行损伤试验, 结果表明玉米籽粒不同表面、位置的抗损伤强度具有显著差异性, 构建了基于表面位置的籽粒抗损伤强度回归模型。结合不同脱粒装置工作原理，对比分析了籽粒抗损伤特性对不同装置脱粒损伤的影响规律。为玉米机械化脱粒技术与装置开发提供了理论指导与数据支持。