A Model for the Static Sealing Performance of Compliant Metallic Gas Seals Including Surface Roughness and Rarefaction Effects
A Model for the Static Sealing Performance of Compliant Metallic Gas Seals Including Surface Roughness and Rarefaction Effects
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DOI：
10.1080/10402000008982334
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发表时间：
2000-01
影响因子：
2.1
通讯作者：
A. Polycarpou;I. Etsion
中科院分区：
文献类型：
--
作者：
A. Polycarpou;I. Etsion
分析了柔性金属气体密封的静密封性能，考虑了表面粗糙度和稀疏效应。这是通过同时解决接触和流动问题的粗糙表面的顺应之一是弯曲的。一个简化的半经验模型的开发和其准确性建立了广泛的实际应用。使用该模型研究了各种设计参数和操作条件对密封性能的影响。据发现，最重要的参数，以获得“气密”密封的硬度较软的组件，复合RMS粗糙度的两个配合面，和密封曲率在接触区。1999年5月23日至27日在内华达州拉斯维加斯举行的第54届年会上发表
The static sealing performance of compliant metallic gas seals is analyzed, accounting for both surface roughness and rarefaction effects. This is accomplished by a simultaneous solution of the contact and the flow problems for rough surfaces of which the compliant one is curved. A simplified semi-empirical model is developed and its accuracy is established for a wide range of practical applications. The effects of various design parameters and operating conditions on the sealing performance, are investigated using this model. It is found that the most important parameters to obtain “gas tight” sealing are the hardness of the softer component, the composite RMS roughness of the two mating faces, and the seal curvature at the contact zone. Presented at the 54th Annual Meeting Las Vegas, Nevada May 23–27, 1999