Analysis and experimental research of transient temperature rise characteristics of high-speed cylindrical roller bearing

• Published in: Scientific reports Vol. 14; no. 1; p. 711
• Main Authors: Dong, Yanfang, Ma, Yafei, Qiu, Ming, Chen, Feifan, He, Kai
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 06-01-2024; Nature Publishing Group; Nature Portfolio
• Subjects: 639/166/988; 639/624/1075; Accuracy; Boundary conditions; Experimental research; Finite element analysis; Finite element method; Heat transfer; Humanities and Social Sciences; Lubricants & lubrication; Methods; Monitoring systems; multidisciplinary; Science; Science (multidisciplinary); Simulation; Sliding friction; Thermal analysis
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-51255-9

In this paper, on one hand, the time-varying characteristics of the heat source and thermal boundary conditions of the high-speed spindle system were analyzed considering the thermal-structural coupling effect. And a transient bearing temperature field prediction method combining the thermal network method and finite element method was proposed. Furthermore, the relationships between time step, calculation efficiency and calculation results were analyzed. On the other hand, a online real-time monitoring system of the transient temperature of the cylindrical roller bearing inner ring for maximum speed of 13,000 r/min was designed and implemented using fibre optic sensing technology. Comparing with the conventional static thermal analysis results, it is verified that the simulation method proposed in this paper has higher accuracy. This paper provides a new approach for analysing and testing the thermal characteristics of high-speed spindle system.