Title :
The Stability Analysis of Hydrodynamic Journal Bearings Allowing for Manufacturing Tolerances. Part II: Stability Analysis Model with Consideration of Tolerances
Author :
Ogrodnik, Peter J. ; Goodwin, Mike J. ; Bancroft, Gordon A. ; Xu, Wubin
Author_Institution :
Fac. of Comput., Eng. & Technol., Staffordshire Univ., Stafford, UK
Abstract :
This paper extends the analysis of Part I to investigate the influences of the manufacturing tolerances on the stability of the journal bearing system. A new dimensionless stability map with consideration of the manufacturing tolerances is modeled by introducing in the concepts of nominal dimensions and limits. Several new parameters are deduced to express the synthesized manufacturing tolerances and the structural parameters of the journal bearing system based on a new dimensionless modified Sommerfeld number. The work also shows that the journal bearing system is insensitive to the manufacturing tolerances when the system eccentricity ratio runs around 0.3-0.4.
Keywords :
hydrodynamics; machine bearings; stability; tolerance analysis; Sommerfeld number; hydrodynamic journal bearings; journal bearing system; manufacturing tolerances; stability analysis; Computer aided manufacturing; Hydrodynamics; Manufacturing automation; Mechatronics; Performance analysis; Petroleum; Stability analysis; Structural engineering; Virtual manufacturing; Viscosity; effect; hydrodynamic journal bearing; manufacturing tolerances; stability;
Conference_Titel :
Measuring Technology and Mechatronics Automation, 2009. ICMTMA '09. International Conference on
Conference_Location :
Zhangjiajie, Hunan
Print_ISBN :
978-0-7695-3583-8
DOI :
10.1109/ICMTMA.2009.627