Transient analysis of misaligned journal bearings based on fluid-structure interaction approach

ZHU Xiling; LI Xuehui

doi:10.12299/jsues.22-0018

Volume 36 Issue 3

Jun. 2022

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Article Navigation > Journal of Shanghai University of Engineering Science > 2022 > 36(3): 267-271

ZHU Xiling, LI Xuehui. Transient analysis of misaligned journal bearings based on fluid-structure interaction approach[J]. Journal of Shanghai University of Engineering Science, 2022, 36(3): 267-271. doi: 10.12299/jsues.22-0018

Citation:

ZHU Xiling, LI Xuehui. Transient analysis of misaligned journal bearings based on fluid-structure interaction approach[J]. Journal of Shanghai University of Engineering Science, 2022, 36(3): 267-271. doi: 10.12299/jsues.22-0018

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Transient analysis of misaligned journal bearings based on fluid-structure interaction approach

doi: 10.12299/jsues.22-0018

ZHU Xiling^1
,,
LI Xuehui²

1.
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
Metallurgical Resource Recycling Branch of Angang Industrial Group Co., Ltd., Anshan 114031, China

Received Date: 2022-01-25
Publish Date: 2022-06-30

Abstract

Abstract

The shaft is deformed with the action of load. The misalignment due to deformation caused by the action of load is considered. The fluid-structure interaction method was used. Navier-Stokes equation was solved directly. The three-dimensional transient analysis of shaft and oil film in journal bearing system was carried out. The flow field and solid domain were solved at the same time. Transient film pressure distribution, trajectory of journal center and minimum oil film thickness under different rotate speeds were solved. The results show that the oil film pressure distribution and thickness of oil film change obviously. The minimum oil film thickness decreases, the peak oil film pressure increased when misalignment was considered. The real-time trajectory of journal center, oil film thickness and transient film pressure distribution can be predicted by the transient analysis, which is very significant for the optimal design of journal bearing.
- journal bearing,
- misalignment,
- transient analysis,
- oil film thickness

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References(16)

References

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