自走式枸杞采摘机机架有限元分析  

Finite Element Analysis of Self-propelled Wolfberry Picker Frame

作　　者：郭金山 刘英[1] 马晨伟 GUO Jin-shan;LIU Ying;MA Chen-wei(Gansu Polytechnic College of Animal Hushandry&Engineering,Wuwei Gansu 733006,China;College of Mechanical and Electrical Engineering,Gansu Agricultural University,Lanzhou Gansu 730070,China)

机构地区：[1]甘肃甘肃畜牧工程职业技术学院,甘肃武威733006 [2]甘肃农业大学机电工程学院,甘肃兰州730070

出　　处：《林业机械与木工设备》2024年第6期78-82,共5页Forestry Machinery & Woodworking Equipment

基　　金：甘肃省高等学校创新基金项目“振摇式枸杞采收机的设计与研究”(2022B-379)。

摘　　要：为研制具有足够强度和刚度的机架,以满足采摘机的作业需求,采用仿真软件Ansys Workbench对枸杞采摘机的机架进行准静态结构分析和模态分析,确定采摘机的最佳振动频率,避免采摘机发生共振现象。结果显示,在一阶模态下采摘机的固有频率最低,其最低固有频率为36.582 Hz,采摘机的振动频率区间为10.094~14.498 Hz,低于机架最低固有频率,采摘机作业时不会发生共振现象。可为自走式枸杞采摘机结构优化提供参考。In order to develop a frame with sufficiently high strength and stiffness to meet the operational requirements of the picking machine,this study uses the simulation software Ansys Workbench,quasi-static structural analysis and modal analysis of the frame of the wolfberry picking machine,to determine the optimal vibration frequency of the picking machine,to avoid resonance phenomenon of the picking machine.The results show that the picker has the lowest intrinsic frequency in the first-order modal state,and its lowest intrinsic frequency is 36.582 Hz.The vibration frequency interval of the picker is 10.094 ~ 14.498 Hz,which is lower than the lowest intrinsic frequency of the frame,and no resonance phenomenon occurs during the operation of the picker.This study can provide a reference for the structure optimization of self-propelled wolfberry picker.

关 键 词：枸杞 自走式枸杞采摘机 模态分析 有限元 

分 类 号：S225[农业科学—农业机械化工程] S776[农业科学—农业工程]