苹果起苗铲有限元分析与结构设计
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国家现代农业产业技术体系建设专项资金资助项目(nycytx-08-02-05)、河北农业大学第六批重点资助教研项目(08-A8)和河北农业大学非生命学科与新兴学科科研发展基金项目(Fs20091403)


Structural Design and Finite Element Analysis of Apple Seeding Lifter
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    摘要:

    在AIP中创建苹果起苗铲三维参数化特征模型,根据起苗铲结构、材料、载荷和受力情况等,利用内嵌于AIP的ANSYS技术模块创建了起苗铲三维有限元模型,划分了有限元网格,获得了起苗铲三维应力、变形和安全系数。根据设计要求和分析结果,将起苗铲结构改进为L形,节省了材料,降低了工作阻力,安全系数达到设计要求。通过样机起苗试验,改进的起苗铲工作阻力小、起苗作业可靠,取得了预期的效果。

    Abstract:

    The 3-D parameterized model of apple seeding lifter was created using autodesk inventor professional (AIP) system. The finite element analysis (FEA) of the lifter were performed through ANSYS technology embedded in AIP analysis types based on the structure, material, loads and forces of the lifter, the 3-D FEA mesh was created, and stress, displacement, and safety factor were obtained after finite element calculation. Then some modifications of lifter configuration were made according to the FEA results. The new lifter with L shape could save materials, reduce resistance. The safety factor could also achieve design purpose. The experiment of lifting seeding results showed that the lifter could provide better working performance with less resistance and obtain the expected effect.

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杨 欣,刘俊峰,李建平,许述财,冯晓静,刘洪杰.苹果起苗铲有限元分析与结构设计[J].农业机械学报,2011,42(2):84-87,125. Yang Xin, Liu Junfeng, Li Jianping, Xu Shucai, Feng Xiaojing, Liu Hongjie. Structural Design and Finite Element Analysis of Apple Seeding Lifter[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(2):84-87,125.

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