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有限元求解精度研究

A Study on the Precision of Finite Element Analysis

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【作者】 钱礼闰孙小明

【Author】 QIAN Li-run1,SUN Xiao-ming2 (1.Anhui National Defense Vocational College,Lu’an 237011,China;2.School of Engineering,Anhui Agricultural University,Hefei 230036,China)

【机构】 安徽国防科技职业学院安徽农业大学工学院

【摘要】 首先对一实例进行理论计算,然后对其进行有限元分析,并对不同网格划分状态下的模型计算结果与理论结果进行比较,最后进行有限元分析误差评估及原因分析,并得出有限元分析计算时网格划分并不是越细小越好,关键是"适度"的结论。

【Abstract】 In this paper,a certain example was calculated theoretically,then analyzed by FEM,and the theoretical result was compared with FEA results with different meshed models.Finally,an error evaluation was given about the results calculated by FEA and its reason was also expatiated.So a conclusion that the mesh is not the smaller the better when you analyze through FEA is educed,the key point is to choose a proper mesh density.

【关键词】 有限元分析网格划分误差评估
【Key words】 FEAmeshingerror evaluation
  • 【文献出处】 机械工程与自动化 ,Mechanical Engineering & Automation , 编辑部邮箱 ,2009年02期
  • 【分类号】TB115
  • 【被引频次】6
  • 【下载频次】205
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