摘要
有限元网格划分是进行有限元数值模拟分析至关重要的一步,它直接影响后续数值计算分析结果的精确性。当前进行齿轮有限元计算时对齿轮的网格划分各不相同,计算得出的结果之间的差异也无法加以辨别。一些人也通过实验手段对计算结果进行对比分析,但是由于缺少相应的测试手段,很难对齿轮整体分析结果进行测试。在进行齿轮啮合的有限元分析过程中采用四种不同的分网方式对齿轮齿根部位进行网格划分,通过比较各分网方式下受压和受拉部位不同路径上齿根综合应力数值趋势图来说明各分网方式对齿根应力分析结果的影响,这对齿轮齿根应力的有限元计算具有现实意义及借鉴价值。
Grid division infinite element is very important to carry out simulating analysis, and it directly affects the following computated accuracy for analysis result, Currently when carrying on gear finite element calculation, the gear meshing are not identical, so the difference between the Calculated results also can＇t tell, So the comparison of the calculation results of experiments is difftcult, because of the lack of corresponding test method, In view of this, it uses four kinds of different ways of grid division to mesh gear-tooth root spot during the course of finite element analysis of gear meshing, Through drawing up and comparing the von mise tendency chart of compressive and tensile spot of gear-tooth root on different ways, it still denotes the influence which different ways of grid division have on the analysis result of gear-tooth root stress, This has the practical significance and value for finite element analysis of gear-tooth root stress,
出处
《机械设计与制造》
北大核心
2014年第8期8-11,共4页
Machinery Design & Manufacture
关键词
有限元分析
分网方式
齿根应力
Finite Element Analysis
Grid Division Ways
Gear-Tooth Root Stress
