| O形圈剪切破坏的可靠性分析 |
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| 引用本文： | 吴广平,宋笔锋,崔卫民. O形圈剪切破坏的可靠性分析[J]. 机械设计与制造, 2009, 0(8) |
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| 作者姓名： | 吴广平 宋笔锋 崔卫民 |
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| 作者单位： | 西北工业大学航空学院,西安,710072 |
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| 摘 要： | 首先利用商业有限元软件ABAQUS建立了O形密封圈的有限元模型,采用非线性有限元方法计算了O形橡胶圈的剪应力的分布,分析了间隙、初始压缩量、密封槽1:7圆角半径、流体压力以及摩擦系数等设计参数对剪应力的影响.最后计算了以剪切破坏为失效模式的O形密封圈的可靠性指标.
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| 关 键 词： | 有限元 O形密封圈 剪切破坏 |
Reliability analysis for o-ring seals with shear failure |
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| WU Guang-ping,SONG Bi-feng,CUI Wei-min. Reliability analysis for o-ring seals with shear failure[J]. Machinery Design & Manufacture, 2009, 0(8) |
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| Authors: | WU Guang-ping SONG Bi-feng CUI Wei-min |
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| Affiliation: | School of Aeronautics;Northwestern Polytechnical University;Xi'an 710072;China |
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| Abstract: | Firstly the finite element model of the O-ring seals is built by commercial software ABAQUS.Applying the theory of nonlinear finite element analysis,the shear strength of the elastomeric O-ring seals is analyzed.The factors influencing Shear strength are considered,such as gap,initial compressibility,notch radius,friction coefficient and fluent pressure.Finally the reliability index of the O-ring seal is computed basing on shear failure model of the elastometric material. |
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| Keywords: | Finite element O-ring seals Shear failure |
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