1
|
Abstract
Electrical contacts, although critically important for a wide range of applications, are susceptible to degradation due to fretting corrosion, especially when sliding and vibrations occur. To overcome fretting corrosion and sliding wear, lubricants are often used. However, the use of lubricants can cause other detrimental issues. Lubricants usually consist of non-conductive fluids such as hydrocarbons and fluorocarbons. Due to fluid dynamics, when sliding, vibration or other excitation occurs, these fluids can cause prolonged gaps between the conducting metal surfaces. Practically, this has been observed in data centers where vibrations due to technician maintenance or even earthquakes can occur. Depending on the viscosity and roughness of the surfaces, the time it takes these connector surfaces to return to solid conductive contact can be many seconds or longer. This work uses a novel theoretical model of the coupled fluid and solid mechanics between the rough metallic surfaces to evaluate these intermittent breaks in contact due to sliding. The influence of variation in lubricant properties, roughness, contact radius and contact force are considered by the model.
Collapse
|
2
|
Cusano C, Wedeven LD. Elastohydrodynamic Film Thickness Measurements of Artificially Produced Nonsmooth Surfaces. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/05698198108982992] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
3
|
Optical interferometric observations of the effect of moving transverse asperities on point contact EHL films. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0167-8922(03)80123-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
4
|
Mixed lubrication—Experiment and theory. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s0167-8922(02)80011-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
5
|
Guangteng G, Spikes H. An Experimental Study of Film Thickness in the Mixed Lubrication Regime. ELASTOHYDRODYNAMICS - '96 FUNDAMENTALS AND APPLICATIONS IN LUBRICATION AND TRACTION, PROCEEDINGS OF THE 23RD LEEDS-LYON SYMPOSIUM ON TRIBOLOGY HELD IN THE INSTITUTE OF TRIBOLOGY, DEPARTMENT OF MECHANICAL ENGINEERING 1997. [DOI: 10.1016/s0167-8922(08)70445-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
6
|
Direct observation of particle entry and deformation in a rolling EHD contact. ACTA ACUST UNITED AC 1996. [DOI: 10.1016/s0167-8922(08)70776-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
|
7
|
Wedeven LD, Cusano C. Elastohydrodynamic Film Thickness Measurements of Artificially Produced Surface Dents and Grooves. ACTA ACUST UNITED AC 1979. [DOI: 10.1080/05698197908982938] [Citation(s) in RCA: 84] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
8
|
|