Fluid Leakage in Metallic Seals
Fluid Leakage in Metallic Seals
复制标题
金属密封件中的流体泄漏
DOI:
10.1007/s11249-020-01358-x
复制
发表时间:
2020
影响因子:
3.2
通讯作者:
Persson
中科院分区:
文献类型:
--
作者:
Fischer;Schmitz;Tiwari;Persson
Metallic seals are crucial machine elements in many important applications, e.g., in ultrahigh vacuum systems. Due to the high elastic modulus of metals, and the surface roughness which exists on all solid surfaces, if no plastic deformation would occur one expects in most cases large fluid flow channels between the contacting metallic bodies, and large fluid leakage. However, in most applications plastic deformation occurs, at least at the asperity level, which allows the surfaces to approach each other to such an extent that fluid leakage often can be neglected. In this study, we present an experimental set-up for studying the fluid leakage in metallic seals. We study the water leakage between a steel sphere and a steel body (seat) with a conical surface. The experimental results are found to be in good quantitative agreement with a (fitting-parameter-free) theoretical model. The theory predicts that the plastic deformations reduce the leak-rate by a factor.
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影响因子:
1.8
作者:
Lorenz, B.;Persson, B. N. J.
通讯作者:
Persson, B. N. J.
影响因子:
4.6
作者:
Dapp WB;Müser MH
通讯作者:
Müser MH
影响因子:
3.2
作者:
Mueser, Martin H.;Dapp, Wolf B.;Greenwood, James A.
通讯作者:
Greenwood, James A.
DOI:
--
发表时间:
2010
期刊:
The European Physical Journal E : Soft matter
影响因子:
--
作者:
B. Lorenz;Bo N. J. Persson
通讯作者:
Bo N. J. Persson
影响因子:
9.4
作者:
S. P. Venugopalan;L. Nicola
通讯作者:
L. Nicola