基于ANSYS Workbench的自走式残膜回收机机架有限元分析  

Finite element analysis of self-propelled residual film recovery machine frame based on ANSYS Workbench

作　　者：李国明 王小瑜 李涛 彭强吉 康建明 LI Guoming;WANG Xiaoyu;LI Tao;PENG Qiangji;KANG Jianming(College of Agricultural Engineering and Food Science,Shandong University of Technology,Zibo 255000,Shandong,China;Shandong Academy of Agriculture Machinery Sciences,Jinan 250100,Shandong,China;Huanghuaihai Key Laboratory of Modern Agricultural Equipment,Ministry of Agriculture and Rural Affairs,Jinan 250100,Shandong,China;Shandong Key Laboratory of Intelligent Agricultural Equipment in Hilly and Mountainous Areas,Jinan 250100,Shandong,China)

机构地区：[1]山东理工大学农业工程与食品科学学院,山东淄博255000 [2]山东省农业机械科学研究院,山东济南250100 [3]农业农村部黄淮海现代农业装备重点实验室,山东济南250100 [4]山东省丘陵山区智慧农业装备重点实验室,山东济南250100

出　　处：《农业装备与车辆工程》2025年第3期10-16,共7页Agricultural Equipment & Vehicle Engineering

基　　金：国家自然科学基金(52175238);新疆维吾尔自治区重点研发计划项目子课题(2022B02022-1);山东省生态农业技术体系农膜污染防治岗位专家(SDAIT-30-05);工业与信息化部残膜回收机项目(23128);工业与信息化部大型农机装备动力系统关键部件项目(2023ZY02002)。

摘　　要：为验证自走式残膜回收机机架的可靠性,以该机具的机架为研究对象,采用SolidWorks建立机架三维数模,简化处理后导入ANSYS Workbench中开展有限元分析。通过不同的约束条件和载荷设置模拟整机现实作业中的各个工况,对机架有限元模型进行静力学分析,获得各个工况下的机架受载情况,机架满足设计强度要求;进行模态分析,提取机架前6阶固有频率和模态振型。结果表明,静力学分析中机架在3种工况下的等效应力分别为126.240、176.365、115.610 MPa,均未超过材料的许用应力,变形合理,满足机架强度刚度要求;模态分析中发现甩刀、发动机和风机工作频率接近1、2阶固有频率29.65、35.28 Hz,易引起机架局部共振,影响整机可靠性。研究可为自走式残膜回收机机架减振优化设计提供参考。In order to verify the reliability of the frame of the self-propelled residual film recovery machine,the frame of the machine was taken as the research object,and SolidWorks was used to establish the three-dimensional digital model of the frame,and the simplified model was imported into ANSYS workbench for finite element analysis.Through different constraints and load settings,each working condition of the whole machine was simulated,and the finite element model of the frame was statically analyzed to obtain the loading condition of the frame under each working condition.Modal analysis was carried out to extract the first 6 natural frequencies and modal shapes of the frame.The results showed that the equivalent stress of the frame under the three conditions were 126.240,176.365 and 115.61 MPa respectively,which did not exceed the allowable stress of the material,and the deformation was reasonable with meeting the strength and stiffness requirements of the frame.Modal analysis showed that the operating frequency of the spinner,engine and fan was close to the first and second order natural frequency 29.65,35.28 Hz,which was easy to cause local resonance of the frame and affect the reliability of the whole machine.The research can provide reference for the optimization design of the frame vibration reduction of self-propelled residual film recovery machine.

关 键 词：残膜回收机 底盘机架 静力学分析 模态分析 

分 类 号：S223.5[农业科学—农业机械化工程] O242.21[农业科学—农业工程]