Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Volume 236, Issue 4, Pages 701-720Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/13506501211027018
Keywords
Inertia effect; misaligned effect; turbulent effect; journal bearing; water-lubricated; static and dynamic characteristics; stability analysis
Categories
Funding
- National Natural Science Foundation of China [51705040]
- Qing Lan Innovation Project of Jiangsu Province
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [19KJA430005, 20KJB430002]
Ask authors/readers for more resources
This paper analyzes the influence of turbulent, inertia, and misaligned effects on the performance of high-speed water-lubricated hydrodynamic journal bearings, finding that these effects significantly enhance the characteristics and stability of the bearings.
The purpose of this paper is to analyze the influence of turbulent, inertia, and misaligned effects on the static and dynamic characteristics and stability of high-speed water-lubricated hydrodynamic journal bearings. Based on the Navier-Stokes equation, the mixing-length theory, and the essential assumption that the velocity profile is not strongly affected by inertia force, the fluid lubrication model with turbulent, inertia, and misaligned effects is established, and then the stability analysis of bearings is carried out based on the equation of motion with four degrees of freedom. The model is solved by the finite difference method and the numerical results are compared under different operating conditions. The results show that the turbulent effect greatly increases the load capacity, power consumption, stiffness and damping coefficients, and stability of bearings, and the inertia effect significantly increases the volume flow rate of bearings, and the misaligned effect increases the load capacity, stiffness and damping coefficients, and stability of bearings. In high rotary speed and moderate eccentricity ratios, the influence of the inertia effect on the load capacity, stiffness coefficients, and stability cannot be neglected.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available