High-speed and heavy-load tribological properties of hydrostatic thrust bearing with double rectangular recess

• Published in: International journal of hydrogen energy 2022-06, Vol.47 (49), p.21273-21286
• Main Authors: Yu, Xiaodong, Tang, Bangyao, Wang, Songbai, Han, Zelin, Li, Shihao, Chen, Minmin, Zhang, Ruiming, Wang, Junfeng, Jiao, Jianhua, Jiang, Hui
• Format: Article
• Language: English
• Subjects: Double rectangular recess; High-speed and heavy-load working conditions; Hydrostatic thrust bearing; Simulation and experiment investigations; Tribological properties
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/j.ijhydene.2022.04.236

The rotational speed and load are two main factors affecting the tribological properties of the hydrostatic thrust bearing, especially under high-speed and heavy-load conditions. The three-dimensional simulation models of oil film and bearing friction pairs are established. The oil film pressure field, oil film temperature field, bearing friction pairs deformation field, and oil film thickness field are obtained and discussed under high-speed and heavy-load working conditions. A test rig for studying high-speed and heavy-load tribological properties of hydrostatic thrust bearing with double rectangular recess is developed. The feasibility of the simulation method is validated by experiments. It is found that a reasonable matching relationship between rotational speed and load is obtained, and the burden is the main factor affecting oil film pressure. Still, the rotational speed has a significant impact on the oil film temperature. The influence of friction pairs deformation on tribological properties under high-speed and heavy-load working conditions is explored, the oil film thickness is obtained, and dry friction will appear if the working conditions are further enlarged. This work guides the application of hydrostatic thrust bearing under working conditions of high speed and heavy load. •Tribological properties of high-speed and heavy-load double rectangular recess hydrostatic thrust bearing is investigated.•Oil film pressure field, oil film temperature field, bearing friction pairs deformation and oil film thickness are obtained.•The matching relationship between rotation speed and load is obtained under working conditions of high speed and heavy load.•The load is the main factor affecting oil film pressure, the rotational speed has a great influence on oil film temperature.•The influence of friction pairs deformation on lubrication performance is explored, and the oil film thickness is obtained.