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Effects of artificially produced defects on film thickness distribution in sliding ehd point contacts
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Cusano, C. Wedeven, L. D. |
| Copyright Year | 1981 |
| Description | The effects of artificially produced dents and grooves on the elastohydrodynamic (EHD) film thickness profile in a sliding point contact were investigated by means of optical interferometry. The defects, formed on the surface of a highly polished ball, were held stationary at various locations within and in the vicinity of the contact region while the disk was rotating. It is shown that the defects, having a geometry similar to what can be expected in practice, can dramatically change the film thickness which exists when no defects are present in or near the contact. This change in film thickness is mainly a function of the position of the defects in the inlet region, the geometry of the defects, the orientation of the defects in the case of grooves, and the depth of the defect relative to the central film thickness. |
| File Size | 948466 |
| Page Count | 30 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820008538 |
| Archival Resource Key | ark:/13960/t15n11q1v |
| Language | English |
| Publisher Date | 1981-01-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Elastohydrodynamics Lubricants Bearings Surface Defects Wear Surface Roughness Grooves Streak Photography Film Thickness Sliding Friction Tribology Interferometry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
