A study of double layer conical porous hybrid journal bearing operated with non-Newtonian lubricant. (January 2023)

• Record Type: Journal Article
• Authors: Sharma, Satish C.; Singh, Anil
• Is Part Of: Tribology international. Volume 179(2023)
• Publication Date: 2023-01
• Subjects: Finite element method -- Double layer porous matrix -- Non-Newtonian lubricant -- Conical porous journal bearing; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2022.108183
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: This study deal with the numerical simulation of a hybrid double layer conical porous bearing (DCPB) considering the synergistic effects of a double layer porous matrix and non-Newtonian lubricant (cubic law model) behaviour. The present study investigates the interactive effects of the non-linear factor of lubricant, permeability parameter and semi cone angle on the performance of a hybrid DCPB. The modified Reynolds equation is solved using the finite element technique for a hybrid DCPB. Findings of this study indicate that the DCPB improve the performance parameters as compared to hybrid single layer conical porous bearing (SCPB). Further, the use of non-Newtonian lubricant improves the stability threshold speed margin ω ̅ th and reduces the frictional power loss ( p ̅ fric ) . Highlights: DCPB with synergistic effect of double layer porous matrix and non-Newtonian lubricant (cubic law model) is computed. Finite element analysis of double layer conical porous hybrid journal bearing is performed. The interactive effects of semi cone angle, non-linear factor of lubricant and permeability parameter has been studied. Performance of bearing in terms of static and dynamic characteristics for different values of radial load W ̅ r .