橡胶果破碎过程及壳仁低损伤分离机理研究

项目名称： 橡胶果破碎过程及壳仁低损伤分离机理研究

项目编号： No.51465015

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 机械、仪表工业

项目作者： 王涛

作者单位： 海南大学

项目金额： 48万元

中文摘要： 橡胶加工是我国亚热带地区的支柱产业，其副产品橡胶果产后发展的瓶颈在于优质、高效地壳仁分离，严重制约榨油品质及综合利用。与银杏之类的坚果和荔枝之类的柔性果相比，橡胶果加工物性变化更为复杂，其壳仁包裹特性与含水率、形状、大小、机械作用的动力学参数、运动特征参数及在不同品种之间存在的差异性，尚不清楚；缺乏加工过程动态变形特征与机构运动耦合的相互作用机理，过程动力与过程阻力及加工能耗间关系较为深入的研究。为此，本项目采用基础力学试验、物理样机试验和理论建模分析等方法深入研究橡胶果壳仁的力学性能与破坏规律。建立壳仁分离关键机构作业过程三维数字化模型，得出保全品质、系统能耗、产品效果的综合评价模型，通过力学试验和有限元分析，得到橡胶果壳和果仁的生物力学特征、物理机械特性、破坏损伤程度及三者之间的联系；揭示橡胶果壳仁破坏损伤规律，为壳仁分离原理与装置研究奠定理论基础。为球形果壳仁分离提供理论分析方法。

中文关键词： 橡胶果；壳仁分离；损伤；机理

英文摘要： Rubber is a pillar industry in China's subtropical region，Postpartum bottleneck of important byproduct of rubber fruit for the development is high quality, high performance kernel husk separation, serious constraints on pressing oil quality and comprehensive utilization. With Ginkgo nuts and soft fruits like Litchi, such as compared to more complex change of physical properties of rubber and fruit processing. It is not clear about the different varieties among its husk package characteristics and moisture content, shape, size, dynamic parameters of mechanical action, sports features and differences. It lacks the process of its dynamic deformation characteristics and kinematic coupling interaction mechanism, dynamic relationship between resistance and processing of process energy consumption and a more in-depth study. So this project uses basic mechanical testing, physical prototype testing and theoretical modeling analysis to study on mechanical properties of rubber shell kernels and broken law. Husk separation of key institutions established job processes three-dimensional digital model for drawing preservation quality, energy consumption and comprehensive evaluation model for the effect of the product. Attain rubber shell and biomechanical characteristics, physical and mechanical properties of nuts, between the extent of damage and the associated though mechanics test and finite element analysis. Reveal rubber's shell and kernel's damage rule, and husk separation principle and device for laying the theoretical foundation. This project provides theoretical analysis method for spherical shell kernels separation.

英文关键词： Rubber fruit;kenel husk sepration;damage;mechanism