农机化研究2024，Vol.46Issue(5)：19-25,7.
榛子捡拾收获机分选装置拓扑优化设计与模态分析
Topology Optimization Design and Modal Analysis of Hazelnut Picking and Sorting Machine
摘要
Abstract
The sorting device of hazelnut harvesting machine is an important part of hazelnut picking and harvesting ma-chine,which directly determines the sorting effect of hazelnut and the service life of the machine.In order to improve the stability of hazelnut picking and sorting structure,the topology optimization design and modal analysis of the whole struc-ture of the device are carried out.Firstly,the structural design and working principle of the hazelnut harvester were ex-plained,and the 3D solid model of the hazelnut picker-harvester was established;then,the static analysis of the hazel-nut picker-harvester was carried out by the finite unit method,and the topological design of the bottom frame structure was carried out by the variable density method,and the optimized sorting device model was established,and the mass of the bottom frame was reduced by 49.9%under the premise of satisfying the use performance.Finally,the modal and har-monic response analysis was performed on the optimized model,and the modal results showed that the first six orders of inherent frequencies were 11.18,17.34,22.04,23.85,36.68,39.61Hz,and the harmonic response results showed that the sorting device was prone to resonance at 11.0Hz and 17.5Hz,with the maximum harmonic peaks occurring at the 1st and 2nd orders.The results show that the sorting device can meet the operational requirements and work stably,which can provide a theoretical reference for further optimization of the hazelnut picking and harvesting machine design.关键词
捡拾收获机/拓扑优化/模态分析/谐响应/榛子Key words
picking and harvesting machine/topology optimization/modal analysis/harmonic respons/hazelnut分类
农业科技引用本文复制引用
任德志,于浩林,张任,李佳奇,赵英博,刘凤波,张金辉,王伟..榛子捡拾收获机分选装置拓扑优化设计与模态分析[J].农机化研究,2024,46(5):19-25,7.基金项目
兴辽英才计划科技创新领军人才项目(XLYC2002009) （XLYC2002009）
