Fluid-structure interaction analysis and density-based topology optimization of single pad externally adjustable fluid film bearing operating in high-speed application
Topology optimization has emerged as a promising technique to make the machines/machine components lightweight without compromising performance. This article investigates topology optimization of single pad externally adjustable fluid bearing operating in the high-speed application with two-way flui...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
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| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447924005847 |
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| Summary: | Topology optimization has emerged as a promising technique to make the machines/machine components lightweight without compromising performance. This article investigates topology optimization of single pad externally adjustable fluid bearing operating in the high-speed application with two-way fluid–structure interaction (FSI) findings. The use of circular profile bearing in modern high-speed turbomachinery is limited due to hydrodynamic instability. Hence, advancements in the field of non-circular bearings, such as single-pad externally adjustable bearings, can be utilized to overcome this challenge. One-way FSI and two-way FSI analyses are performed initially on these as single-pad externally adjustable bearing working at various rotor speeds at a high eccentricity ratio. Further, using the results of two-way FSI, a density-based topology optimization (TO) technique is applied using ANSYS workbench software. TO results showed that the weight of the pad bearing can be reduced to 38.14%, which helps the bearing manufacturers to accurately predict optimum material distribution within the design space. |
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| ISSN: | 2090-4479 |