Paper Title:
Numerical Simulation on Oil-Flow-State of Gap Oil Film in Sector Cavity Multi-Pad Hydrostatic Thrust Bearing
  Abstract

Hydrostatic thrust bearing lubrication is significantly affected by the oil flow state of gap oil film, but it can not be measured by experiment and analysis. For this problem, the oil flow state of gap oil film in sector cavity multi-pad hydrostatic thrust bearing during rotation was simulated by using computational fluid dynamics, lubricating theory, and Finite Element Method. Laminar model and κ-ε turbulence model were adopted to model incompressible steady equations, and the equations were discreted by using Finite Volume Method and Second-order Finite Difference. By comparing the calculated results of numerical simulation and semi-empirical theoretical equation, the numerical simulation is proved feasible in oil film state analysis parameter prediction, which can overcome the deficiency of single model and get good effect. Streamlines and velocity vectors show that the lubricating oil flow in the resistive oil edges and oil cavities are laminar flow under the conditions of speed and flow in less than a certain value, while the flow and speed are more than a certain value, the lubricating oil flow in the resistive oil edges is also laminar flow, but the lubricating oil flow in the oil cavities is turbulent flow, then determines critical flow and critical speed. The critical flow and critical speed were determined, it provides a theoretical basis of the temperature field and thermal field deformation calculation.

  Info
Periodical
Edited by
Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng
Pages
743-747
DOI
10.4028/www.scientific.net/AMM.37-38.743
Citation
X. D. Yu, X. L. Meng, H. Jiang, X. Z. Lou, B. Wu, H. J. Xiang, X. Z. Sun, C. Q. Yang, J. F. Wang, "Numerical Simulation on Oil-Flow-State of Gap Oil Film in Sector Cavity Multi-Pad Hydrostatic Thrust Bearing", Applied Mechanics and Materials, Vols. 37-38, pp. 743-747, 2010
Online since
November 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: B. Wang, Xian Li Liu, Cai Xu Yue, J.C. Du, L. Xu, X.Q. Chen
Abstract:Integral production technology of impulse turbine runner effectively prevents phenomenon of bailer broken when generation unit working, and...
861
Authors: Zhao Jun Yang, Xiao Cui Zhu, Ya Zhou Jia, Li Ding Wang, Bin Bin Xu, Xiao Bing Li, Jian Wei Lu
Abstract:This paper chose multi-index to provide a comprehensive evaluation model to evaluate the use reliability of CNC machine tools as a single...
374
Authors: Jing Li, Xiang Jun Zou
CAM/CAE
Abstract:Because of the difficult problem about exchanging and sharing products information between the CAX system and CNC machine, STEP-NC was...
1566
Authors: Sheng Bao, Fu Zhang, Xi Zhang
Abstract:The random errors exist in measuring with touch trigger probe. These errors are directly introduced into workpiece coordinate system with...
11
Authors: M Arul Prakash, K. Mayilsamy, P. Rajesh Kanna
Chapter 6: Industrial Thermomechanics and Engine Engineering
Abstract:The effect of obstacle in an incompressible laminar wall jet flow is investigated numerically. Heat transfer enhancements in cooling of...
747