A FEM based modeling method for analyzing the static performance of aerostatic thrust bearings considering the fluid-structure interaction
- Resource Type
- Authors
- Feihu Zhang; Siyu Gao; Lihua Lu; Qiang Gao; Laiyun Song; Lizi Qi
- Source
- Tribology International. 156:106849
- Subject
- business.industry
Mechanical Engineering
Aerostatic bearing
Thrust
02 engineering and technology
Surfaces and Interfaces
Structural engineering
Aerostatic thrust bearing
021001 nanoscience & nanotechnology
Discharge coefficient
Finite element method
Surfaces, Coatings and Films
law.invention
020303 mechanical engineering & transports
Thrust bearing
0203 mechanical engineering
Mechanics of Materials
law
Fluid–structure interaction
Static performance
0210 nano-technology
business
Geology
- Language
- ISSN
- 0301-679X
The fluid-structure interaction (FSI) phenomenon has significant impact on the performance of aerostatic thrust bearings. To rapidly calculate their performance, this paper proposes a finite element method (FEM) based FSI modeling method. A FEM model of aerostatic bearing and a two dimensional FEM model of thrust plate were built, and the bidirectional data exchange between them was realized. Besides, the change of discharge coefficient caused by FSI phenomenon is considered by adopting a discharge coefficient model. The accuracy of the proposed FSI model is verified numerically and experimentally. The average calculation time is reduced from 9.36 h to 86.2 s for the case study. This research provides an efficient modeling method for the design of aerostatic thrust bearing considering FSI.