文献类型： 外文期刊

作者： Yao, Shiqi ¹ ; An, Shiguan ⁴ ; Bai, Zhiye ⁴ ; Chen, Shan ¹ ; Kan, Za ¹ ; Meng, Hewei ¹ ; Li, Yaping ¹ ;

作者机构： 1.Shihezi Univ, Coll Mech & Elect Engn, Shihezi 832000, Xinjiang, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Northwest Agr Equipment, Shihezi 832000, Xinjiang, Peoples R China

3.Oasis Characterist Cash Crop, Minist Educ, Engn Res Ctr Prod Mech, Shihezi 832000, Xinjiang, Peoples R China

4.Xinjiang Acad Agr Sci, Res Inst Agr Mechanizat, Urumqi 830091, Xinjiang, Peoples R China

关键词： Three-dimensional collision; Specular reflection; Coefficient of restitution; Jujube fruit; Experimental test

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）

ISSN： 0925-5214

年卷期： 2024 年 212 卷

页码：

收录情况： SCI

摘要： To provide foundational data for parameter design and performance analysis of high-performance processing equipment, the collision model between jujube-parts and the parameter effects on coefficient of restitution (COR) were investigated. Jujube samples from the sandy lands of southern Xinjiang during the harvest season were utilized, with experimental factors including collision angle, falling height, collision material, moisture content, and collision parts. Single-factor tests and mixed orthogonal tests were conducted to explore the impact of parameter on COR. Utilizing the specular reflection principle, a 3D impact analysis of jujube was performed, and a kinematic model of the falling and impact process was established to determine the COR. Results indicate that the COR of Jun (Zizyphus jujuba cv. Junzao) is higher than that of Hui (Zizyphus jujuba cv. Huizao), and the ventral part exhibits a higher COR compared to the other four parts. Collisions with steel yield higher COR values compared to soil. Furthermore, for collisions with steel material, both Jun and Hui exhibit a decrease in COR with increasing falling height and moisture content, while the COR increases with an increase in collision angle. The influencing factors on COR follow the order of collision material > variety > moisture content > collision angle > falling height > collision part. These findings offer valuable insights for jujube processing research and for preventing mechanical damage to jujube fruits.