Research on lubricating boundary conditions of rock bit journal bearing

Author

Wang, Guorong ; Wang, Juan

Author_Institution

State Key Lab. of Oil & Gas Reservoir Geol. & Exploitation, Southwest Pet. Univ., Chengdu, China

fYear

2011

fDate

15-17 July 2011

Firstpage

5162

Lastpage

5164

Abstract

Because of the complex work environment, the lubricating boundary conditions of rock bit journal bearing are special. It cannot be simply dealt with the boundary conditions as ordinary bearings. Otherwise, the results of the lubrication analysis will be affected. Through the analysis of work environment of rock bit journal bearing and the comparison of difference of ordinary bearings, proposed the lubricating boundary condition of rock bit journal bearing with the environmental stress and sealing pressure differential for consideration, and combined with the user interface and function of MATLAB PDE Toolbox for numerical analysis. The study showed that the rock bit journal bearing has a stronger load capacity under special boundary conditions.

Keywords

boundary-value problems; environmental degradation; lubrication; machine bearings; mechanical engineering computing; partial differential equations; user interfaces; MATLAB PDE toolbox; complex work environment; environmental stress; load capacity; lubricating boundary conditions; lubrication analysis; numerical analysis; ordinary bearings; rock bit journal bearing; sealing pressure differential; user interface; Boundary conditions; Companies; Lubrication; MATLAB; Petroleum; Rocks; Stress; PDE Toolbox; boundary conditions; journal bearing; lubrication; rock bit;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988244

Filename

5988244