Optimization and thermohydrodynamic analysis of five-pad tilting pad journal bearing.
The multi-objective particle swarm optimization method is used to enhance performance of thermal hydrodynamic tilting-pad journal bearings (TPJBs). Reynolds and 3D energy equations for pad and fluid film are used to obtain the performance parameters of the TPJB.
The power loss in bearings, the minimum thickness of the oil film and the highest oil temperature are evaluated during this optimization process. The optimization results are shown as Pareto front with two and three objective functions for speed, inlet temperature and different loads.
Despite the innovations of multiple optimization methods, research on the optimization of five-pad TPJB is scarce, and the modeling done is simplified, and the thermal exchange between the fluid and the pad and the fluid and the shaft is usually ignored in the optimizations. The main objective of this study is to provide a 3D thermohydrodynamic TPJB design approach and considering heat transfer between shaft and fluid and pad and fluid.
The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2024-0375/
