Study of wear and friction heat generation models of finger seals based on energy theory of tribology system
Source abstract
Abstract
Finger seals have a good application prospect in gas and steam turbine for power generation as an advanced contact flexible seal. The wear and friction heat generation properties of the finger seal have significant effects on leakage and life. In this study, a bilateral wear model and friction heat generation model were established to calculate the wear volume and temperature of the finger seal and rotor. In particular, the friction heat generation model considered the effect of wear and deformation (centrifugal and thermal) of both the finger seal and rotor. Both models were expressed as functions of the finger seal configuration, material properties, operating conditions, and several relevant parameters. To determine these parameters, a ball-disk friction and wear experiment and a finger seal wear and friction heat generation experiment were conducted. Both models were validated with experimental data, and both errors were less than 12%.
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Research context
OpenAlex topics: Tribology and Lubrication Engineering · Mechanical stress and fatigue analysis · Gear and Bearing Dynamics Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics 1 , No. 29 Yudao Street, Nanjing, Jiangsu Province, China
Shaanxi Interstellar Glory Space Technology Co., Ltd. 2 , Floor 8, Shantie Building, Chang’an District, Xi’an City, Shaanxi Province, China
References (25)
Show source-provided references
1. Finger seal design based on fluid-solid interaction model
2. Effect of teeth bending and mushrooming damages on leakage performance of a labyrinth seal10.1007/s12206-018-0917-y ↗
3. Fluid-solid coupling performance analysis of finger seal under considering progressive wear effect
4. Dynamic leakage analysis of noncontacting finger seals based on dynamic model10.1115/1.4029776 ↗
5. Pressure balanced, low hysteresis, finger seal test results
6. High-speed, high-temperature finger seal test results10.2514/1.9256 ↗
7. Experiment of wearing characteristics and its effect on leakage of finger seal10.13675/j.cnki.tjjs.2017.11.024 ↗
8. Leakage and wear characteristics of finger seal in hot/cold state for aeroengine10.1615/ihtc16.mpf.022561 ↗
9. H. Su, “Structural design, performance analysis and tests of finger seal,” Ph.D. thesis, Northwestern Polytechnical University, Xi’an, China, 2006.
10. Contact and rubbing of flat surfaces10.1063/1.1721448 ↗
11. Geometric feature and structure optimization of arc finger seal
12. The performances optimization of finger seal based on fuzzy game theory10.1016/j.proeng.2011.08.646 ↗
13. Progressive wear prediction of C/C composite finger seal based on ALE adaptive meshing strategy10.1177/1350650116667344 ↗
14. Experimental study on leakage and wear characteristics of C/C composite finger seal10.1108/ilt-10-2019-0421 ↗
15. Comparison of performance test results to CFD and structural models of non-contacting finger seals [STUB]
16. Friction simulation analysis of finger seal with different surfaces texture
17. Contact structure analysis of finger seal considering thermal effect10.16579/j.issn.1001.9669.2019.02.025 ↗
18. Analysis on thermal-fluid-solid interaction of straight pad finger seal performance10.4028/www.scientific.net/amm.249-250.498 ↗
19. Numerical simulations and an experimental investigation of a finger seal
20. Wear as an energy transformation process10.1016/0043-1648(78)90091-1 ↗
21. Thermal and thermomechanical effects in dry sliding10.1016/0043-1648(84)90026-7 ↗
22. Experiment on axis locus of rotor and leakage characteristics of finger seal10.13224/j.cnki.jasp.2016.11.003 ↗
23. 2017
24. An anisotropic porous media model for leakage analysis of finger seal10.1177/0954410019862080 ↗
25. Leakage, heat transfer and thermal deformation analysis method for contacting finger seals based on coupled porous media and real structure models10.1177/0954406219900219 ↗