| タイトル | A system-approach to the elastohydrodynamic lubrication point-contact problem |
| 本文（外部サイト） | http://hdl.handle.net/2060/19910014126 |
| 著者（英） | Lim, Sang Gyu; Brewe, David E. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1991-01-01 |
| 言語 | eng |
| 内容記述 | The classical EHL (elastohydrodynamic lubrication) point contact problem is solved using a new system-approach, similar to that introduced by Houpert and Hamrock for the line-contact problem. Introducing a body-fitted coordinate system, the troublesome free-boundary is transformed to a fixed domain. The Newton-Raphson method can then be used to determine the pressure distribution and the cavitation boundary subject to the Reynolds boundary condition. This method provides an efficient and rigorous way of solving the EHL point contact problem with the aid of a supercomputer and a promising method to deal with the transient EHL point contact problem. A typical pressure distribution and film thickness profile are presented and the minimum film thicknesses are compared with the solution of Hamrock and Dowson. The details of the cavitation boundaries for various operating parameters are discussed. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 91N23439
E-6116
NAS 1.15:104342
NASA-TM-104342
AD-A237671
AVSCOM-TR-90-C-031 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/132596 |
