农机化研究2024，Vol.46Issue(1)：41-45,53,6.
谷子联合收获机割台机架的振动分析与结构优化
Vibration Analysis and Structural Optimization of Header Frame of Millet Combine Harvester
摘要
Abstract
In order to reduce the vibration of millet combine harvester when working in the field and reduce the loss rate of header,this paper uses SolidWorks to carry out three-dimensional modeling of millet header frame,carries out finite el-ement analysis before and after optimization with ANSYS software,and verifies the computer modal analysis results with Donghua DH5902 dynamic test analyzer.The fourth order mode before optimization is 11.04Hz,and its frequency falls within the external excitation frequency range.Each order frequency of the optimized millet header frame avoids the exter-nal excitation frequency range of the combine harvester,effectively avoiding the generation of header vibration.The field experiment verifies the header loss rate before and after the improvement.The results show that the header loss rate after the improvement is reduced by 14.5%.The research results of this paper provide theoretical guidance for reducing the vi-bration of millet combine harvester and the damping design of millet header.关键词
割台机架/有限元分析/模态分析/结构优化/谷子Key words
header frame/finite element analysis/modal analysis/structural optimization/millet分类
农业科技引用本文复制引用
郑国强,李耀明,姬魁洲,梁振伟,马啸,程军辉..谷子联合收获机割台机架的振动分析与结构优化[J].农机化研究,2024,46(1):41-45,53,6.基金项目
山东省重大科技创新工程项目(2019JZZYO10729) （2019JZZYO10729）
江苏省科协青年科技人才托举工程项目(2020-21) （2020-21）
镇江市重点研发计划(现代农业)项目(NY2021009) （现代农业）
