福建农林大学学报（自然科学版）2024，Vol.53Issue(1)：136-144,9.DOI:10.13323/j.cnki.j.fafu(nat.sci.).202306030
基于离散元法的生态茶园开沟抛土刀设计与参数优化
Design and parameter optimization of trenching and soil-throwing blade for ecological tea garden by discrete element method
摘要
Abstract
[Purpose]The study aimed to design a trenching and soil-throwing blade applicable for ecological tea garden.[Method]Based on the dynamic analysis of blade during operation process and Box-Behnken central composite design,a discrete element sim-ulation experiment was conducted with bending angle of front tangent plane,area of thrown up soil,and the angle between thrown up soil and side tangent plane as experimental factors to evaluate the quality of thrown up soil and power consumption.[Result](1)Bending angle of front tangent plane,area of thrown up soil,and the angle between thrown up soil and side tangent plane all signifi-cantly affect power consumption and thrown up soil quality.(2)The optimal parameter combination(bending angle of front tangent plane at 112.7°,area of thrown up soil at 3 566 mm2,and the angle between thrown up soil and side tangent plane at 132.5°)ob-tained from the simulation tests resulted in 11.45 kg of thrown up soil within the working range at the power consumption of 1.121 kW.(3)The average errors between the simulation tests and field trials were 12.25%and 12.67%for power consumption and quali-ty of thrown up soil,respectively.[Conclusion]The simulation model was reliable for the manufacture of trenching and soil-throwing blade.关键词
生态茶园/离散元仿真/正切面折弯角/抛土片面积/抛土片与侧切面夹角Key words
ecological tea garden/discrete element simulation/bending angle of front tangent plane/area of thrown up soil/angle between thrown up soil and side tangent plane分类
农业科技引用本文复制引用
陈伟祥,秦吉彪,陈重成,刘杨,郑书河..基于离散元法的生态茶园开沟抛土刀设计与参数优化[J].福建农林大学学报（自然科学版）,2024,53(1):136-144,9.基金项目
福建省科技厅引导性项目(2022N0009) （2022N0009）
福建农林大学茶全产业链创新与服务体系建设项目(K1520005A05). （K1520005A05）
