| 基于子模型技术的螺旋弹簧应力分布的有限元分析 |
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| 引用本文： | 范俊,米彩盈. 基于子模型技术的螺旋弹簧应力分布的有限元分析[J]. 机械, 2010, 37(9): 22-24 |
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| 作者姓名： | 范俊 米彩盈 |
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| 作者单位： | 西南交通大学,机械工程学院,四川,成都,610031 |
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| 摘 要： | 对基于材料力学的螺旋弹簧计算公式进行了讨论,提出了工程上计算弹簧最大剪切应力的公式,并在商业有限元软件ANSYS中构造了压缩螺旋弹簧的有限元模型。在探究弹簧应力分布时,通常只关心最容易发生断裂破坏的部分,仅需要对应力集中的一段进行准确的分析。在确定螺旋弹簧的边界条件后,运用ANSYS的子模型技术,在这段运用更细致的网格,可得到精确的结果。将FEA计算结果和材料力学结果进行比较,从求解方式上讨论出现微小差异的原因。
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| 关 键 词： | 螺旋弹簧 有限元 应力分布 子模型技术 |
Finite element analysis for the stress distribution of helical spring based on sub-modeling technology |
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| FAN Jun,MI Cai-ying. Finite element analysis for the stress distribution of helical spring based on sub-modeling technology[J]. Machinery, 2010, 37(9): 22-24 |
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| Authors: | FAN Jun MI Cai-ying |
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| Affiliation: | (School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | Based on Material Mechanics,helical spring calculation formula is discussed in this paper to propose the maximum shear stress calculation formula used in project,and a finite element model of the helical spring is constructed in the commercial software ANSYS.In general when discussing the stress distribution of helical spring,it is usually only interested in some of the most vulnerable parts where fracture failures happen,so only a section the stress concentration section requires for accurate analysis.By the determination of boundary conditions,Through the use the sub-modeling technology of commercial finite element software ANSYS,using more detailed grid,accurater result obtained.Calculation result by FEA method is compared with that of Material Mechanics,so as to discuss the minor differences through the solving ways. |
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| Keywords: | helical spring finite element stress distribution sub-modeling technology |
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