| 玉米根茬收获系统的有限元模态分析与试验 |
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| 引用本文： | 权龙哲,佟 金,曾百功,陈东辉.玉米根茬收获系统的有限元模态分析与试验[J].农业工程学报,2011,27(11):15-20. |
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| 作者姓名： | 权龙哲 佟 金 曾百功 陈东辉 |
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| 作者单位： | 1. 吉林大学工程仿生教育部重点实验室,长春130022;东北农业大学工程学院,哈尔滨150030
2. 吉林大学工程仿生教育部重点实验室,长春,130022 |
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| 基金项目： | 国家“863”高技术研究发展计划资助项目(2009AA043604-2) |
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| 摘 要： | 针对研制的集铲挖和脱土于一体的玉米根茬收获系统，为进一步优化该系统的作业性能，采用有限元模态分析与试验模态分析相结合的研究方法，获得了该系统的前20阶的固有频率，以及各主要工作部件的典型振型。研究结果表明：系统的1～4阶（8.5～29.6?Hz）模态主要表现为升运链的整体弯振；5～14（44.1～124?Hz）阶模态表现为各主要功能部件的横梁及主轴的弯曲、扭转振动；15～20阶模态（135～190?Hz）则主要表现为各功能部件的末端振颤，上述系统模态属性，可为系统结构振动特性的描述及整机作业性能的优化提供依据。
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| 关 键 词： | 有限元法，收获机，农业机械，玉米根茬，模态分析 |
| 收稿时间： | 2011/2/24 0:00:00 |
| 修稿时间： | 2011/5/27 0:00:00 |
Finite element mode analysis and experiment of corn stubble harvester |
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| Quan Longzhe,Tong Jin,Zeng Baigong and Chen Donghui.Finite element mode analysis and experiment of corn stubble harvester[J].Transactions of the Chinese Society of Agricultural Engineering,2011,27(11):15-20. |
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| Authors: | Quan Longzhe Tong Jin Zeng Baigong and Chen Donghui |
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| Institution: | Quan Longzhe1,2,Tong Jin1,Zeng Baigong1,Chen Donghui1(1.Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130012,China,2.College of Engineering,Northeast Agricultural University,Harbin 150030,china) |
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| Abstract: | In order to improve the performance of corn stubble harvester,the finite element analysis and mode test were conducted,and the first 20 frequencies and corresponding mode shapes were obtained.The results showed that there was a torsion deformation of the screening conveyor device in the first to the fifth(8.5-29.6 Hz)modes,and there was a bend torsion deformation of beam and principal axis in the sixth to the fourteenth(44.1-124 Hz)modes,and there was also a bend torsion deformation of the tip of components... |
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| Keywords: | finite element methods harvesters agricultural machinery corn stubble mode analysis |
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