绿肥开沟机机架结构有限元分析  

Finite element analysis of the structure of green manure ditching machine

作　　者：张啸聪 蒋蘋[1] 石毅新[1] 向思亮 ZHANG Xiaocong;JIANG Pin;SHI Yixin;XIANG Siliang(College of Mechanical and Electrical Engineering,Hunan Agricultural University,Changsha 410128,Hunan,China)

机构地区：[1]湖南农业大学机电工程学院,湖南长沙410128

出　　处：《农业装备与车辆工程》2025年第3期22-25,91,共5页Agricultural Equipment & Vehicle Engineering

基　　金：湖南省重点研发计划项目(2024JK2031);湖南省智能农机装备研发项目“南方水田绿肥开沟机研发制造推广应用”。

摘　　要：南方绿肥制种区域一般为秋收后水田,针对水田土质普遍黏湿,绿肥虽生命力旺盛,但不耐水的特性,为了水田绿肥期开沟排水作业,结合实际农艺要求,设计了一款水田绿肥开沟机,对其整机结构进行设计和装配。利用SolidWorks作出绿肥开沟机的三维图,通过ANSYS软件对绿肥开沟机机架进行有限元分析,静态分析确定机架的变形和应力情况,模态分析确定有固定约束时前六阶机架的固有频率与振型,为绿肥开沟机机架结构的设计和优化提供理论依据。The general area for green manure seed production in the south is usually paddy fields after the autumn harvest.Due to the common sticky and wet soil of paddy fields,although green manure has strong vitality,it is not tolerant to water.To facilitate drainage operations during the green manure period in paddy fields,and in line with actual agricultural requirements,a paddy field green manure furrower was designed.The overall structure of the machine was designed and assembled,and the 3D model of the green manure ditching machine was created by using SolidWorks.Moreover,the finite element analysis of the three-point hitch device and the frame of the green manure ditching machine was carried out by using ANSYS software.The static analysis determined the deformation and stress conditions of the three-point hitch device and the frame,and the dynamic analysis obtained the first six-order natural frequencies and vibration modes when fixed constraints were applied,providing a certain theoretical basis for the structural optimization design of the tractor′s three-point hitch device and the frame.

关 键 词：绿肥开沟 有限元分析 ANSYS 模态分析 机架 

分 类 号：S222.52[农业科学—农业机械化工程]