热带作物学报2024，Vol.45Issue(8)：1705-1713,9.DOI:10.3969/j.issn.1000-2561.2024.08.020
基于PLC的橡胶树皮非线性力学性能探测装置设计与试验
Design and Test of Nonlinear Mechanical Properties Detection Device of Rubber Bark Based on PLC
摘要
Abstract
In order to obtain the structural mechanical property parameters of rubber bark and solve the problem that there is no reliable reference for accurate detection of rubber depth and accurate control of skin loss thickness in the research and development of mechanized rubber picking equipment,a test device for nonlinear mechanical property measurement of rubber bark based on PLC was designed to realize automatic continuous detection and data collection of rubber bark mechanical properties with high precision and low loss measurement of bark thickness.The mechanical properties of bark of 15-,20-and 25-year-old rubber trees of Reyan 7-33-97 and PR107 were studied,and the mathe-matical model of piercing force with piercing depth was established.The experimental results showed that the perform-ance of the device was stable,and the piercing force curves of different strains and different ages were similar,showing a high-low-high trend,and were highly correlated with the layered characteristics of the bark structure.Under the same age,the piercing force of two strains of Reyan 7-33-97 and PR107 was not significantly different,and the piercing force of older trees of the same strain was greater than that of younger trees.The maximum piercing force reached 48.5 N.The test device meets the requirement of detecting structural mechanical parameters of rubber bark and provides theo-retical basis for the research and development of mechanized rubber harvesting equipment.关键词
橡胶树皮/刺入力/力学性能/采胶深度Key words
rubber tree bark/penetration force/mechanical property/tapping depth分类
农业科技引用本文复制引用
陈娃容,曹建华,范博,张以山,肖苏伟,邓祥丰..基于PLC的橡胶树皮非线性力学性能探测装置设计与试验[J].热带作物学报,2024,45(8):1705-1713,9.基金项目
海南省自然科学基金青年基金项目(No.324QN308) （No.324QN308）
海南省自然科学基金面上项目(No.323MS074). （No.323MS074）
