农机化研究2018，Vol.40Issue(1)：40-45,56,7.
复杂激励下小型甘蔗收获机切割器振动分析
Analysis on the Vibration of Small Sugarcane Harvester Cutter under the Complex Excitation
摘要
Abstract
High broken rate of sugarcane ratoon is the main bottleneck hindering the application research of small sugarcane harvester.According to previous study, inhibition of vibration of cutting system can effectively reduce the broken rate of sugarcane ratoon.Through theoretical analysis, simulation and experimental method, this paper explores dynamic characteristics of cutting system and vibration characteristics of the cutter under the action of impact load of various vibration excitations.The results show that the frequency range of sugarcane road spectrum excitation is 0~10Hz, and engine excitation or cutting sugarcane excitation can be described by sine function of force.The first two order natural frequency of cutting sugarcane system is 24.114Hz and 34.454Hz and the finite element model built is accurate.The frequency is 84.7Hz, 6.22Hz and 8.10Hz when cutter displacement response reaches maximum under complex excitation.And under the excitation frequency of 61.36Hz Y displacement reaches minimum.关键词
甘蔗收获机/切割器/振动/激励Key words
sugarcane harvester/cutter/vibration/excitation分类
农业科技引用本文复制引用
李尚平,张彪,叶才福,杨代云..复杂激励下小型甘蔗收获机切割器振动分析[J].农机化研究,2018,40(1):40-45,56,7.基金项目
国家自然科学基金项目(51465006) （51465006）
广西高校临海机械装备设计制造及控制重点实验室课题(GXLH2014KF-04) （GXLH2014KF-04）
