Affiliation:
1. College of Mechanical Engineering University of Jinan Jinan Shandong China
2. Research and Development Department Shandong Xinheyuan Heat Transfer Technology Co., Ltd. Taian Shandong China
Abstract
AbstractLiquid sodium hybrid bearing is mechanical pump shaft bottom key support components, that play a balanced radial force of the impeller by fluid effect, in order to improve the bearing performance, based on the calculation model, simulation analysis, structure improvement and other aspects of analysis, this paper based on the theory of fluid mechanics of bearing finite element model for numerical calculation and analysis of flow field. Under different eccentricities and vibration velocities, the influence of structure improvement on bearing capacity is analysed. The results show that the bearing capacity of the liquid sodium hybrid bearing is mainly the hydrostatic bearing capacity, and the hydrodynamic pressure only plays an auxiliary role. After the improvement of the load‐bearing structure, the load‐bearing capacity is increased by 4%–7.3%. And the leakage is reduced by 27%–38% when the depth of the annular groove is 0.6 mm.
Funder
Natural Science Foundation of Shandong Province
National Natural Science Foundation of China
Reference23 articles.
1. Modeling and performance research on sodium cooled fast reactor superconductive sodium pump;Yang ZD;At Energy Sci Technol,2014
2. Lubrication regime and dynamic characteristics of hydro‐hybrid bearing of two‐circuit Main loop Na liquid pump system;Chen RG;Lubr Eng,2017
3. Numerical analyses of rectangular micro-textures in hydrodynamic lubrication regime for sliding contacts
4. Enhancement in tribological performance of plastic oil by solid lubricant additives
5. A mixed lubrication analysis of a flat‐land thrust bearing with a surface optimisation method