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16 June 2023 Research on characteristics of tilting pad bearing based on FLUENT-UDF simulation method
Xiang Li, Zhi-jun Zhang
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Proceedings Volume 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023); 1263934 (2023) https://doi.org/10.1117/12.2682081
Event: Third International Conference on Mechanical Design and Simulation (MDS 2023), 2023, Xi'an, China
Abstract
In order to solve the technical problem of large centrifugal compressors' tilting pad bearings in domestic production in China, this paper focuses on Type-one and Type-two tilting pad bearings, and proposes and uses a transient force feed back simulation technology based on FLUENT-UDF to address the low simulation efficiency issue of the general fluid-solid coupling. The operation characteristics of tilting pad bearings are studied. Through the simulation results, the possible causes of instability of the tilting pad bearings are obtained: unreasonable bearing structure and preloading, and an increased eccentricity of the journal leads to collision between the bearing and journal due to the low-pressure area between the bearing and journal. Moreover, an unreasonable bearing structure and excessive forced lubrication pressure can cause bearing deviation and collision with the journal due to the different pressure differences on both sides of the bearing.
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Xiang Li and Zhi-jun Zhang "Research on characteristics of tilting pad bearing based on FLUENT-UDF simulation method", Proc. SPIE 12639, Third International Conference on Mechanical Design and Simulation (MDS 2023), 1263934 (16 June 2023); https://doi.org/10.1117/12.2682081
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KEYWORDS
Fluid dynamics
Computer simulations
Computational fluid dynamics
Industry
Solids
Systems modeling
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