| 端面规则凹坑造型机械密封综合性能的数值分析 |
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| 引用本文： | 符永宏,纪敬虎,华希俊,杨超君,毕勤胜.端面规则凹坑造型机械密封综合性能的数值分析[J].排灌机械,2010,28(2):169-173. |
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| 作者姓名： | 符永宏 纪敬虎 华希俊 杨超君 毕勤胜 |
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| 作者单位： | 1. 江苏大学,机械工程学院,江苏,镇江,212013
2. 江苏大学,理学院,江苏,镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省自然科学基金资助项目，江苏省高技术重大项目，江苏省高校自然科学基础研究项目 |
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| 摘 要： | 考虑密封端面间液膜的空化现象和流体动、静压效应的相互影响,建立了端面规则凹坑造型机械密封的理论分析模型,利用多重网格法分析了在不同的密封系数下,球缺面凹坑的几何结构参数对端面间液膜开启力、摩擦转矩和液膜刚度的影响.结果表明,密封系数和微凹坑的深径比对密封性能的影响较大,密封系数越大,液膜开启力和刚度越大,存在最优的深径比使液膜开启力和刚度达到最大,且最优的深径比随着密封系数的增大而减小;面积密度对密封性能的影响不明显,存在最优的面积密度使液膜开启力和刚度达到最大,且最优的面积密度不受密封系数的影响.
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| 关 键 词： | 机械密封 凹坑 多重网格法 密封性能 数值分析 |
Numerical analysis of integrated performance of mechanical seals with regular micro-surface structure |
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| Fu Yonghong,Ji Jinghu,Hua Xijun,Yang Chaojun,Bi Qinsheng.Numerical analysis of integrated performance of mechanical seals with regular micro-surface structure[J].Drainage and Irrigation Machinery,2010,28(2):169-173. |
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| Authors: | Fu Yonghong Ji Jinghu Hua Xijun Yang Chaojun Bi Qinsheng |
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| Institution: | 1.School of Mechanical Engineering/a>;Jiangsu University/a>;Zhenjiang/a>;Jiangsu 212013/a>;China/a>;2.Faculty of Science/a>;China |
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| Abstract: | A theoretical analysis model was developed to study mechanical seals with regular micro-surface structure considering cavitation within the fluid film between two faces and the interaction between hydrodynamic and hydrostatic components.Multi-grid method was used to study the effect of geometric parameters of dimples which in the form of spherical shape on the seal performance such as opening force,friction torque and fluid film stiffness for various seal parameters.The results show that the seal factor and... |
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| Keywords: | mechanical seal dimple multi-grid method seal performance numerical analysis |
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