Trans Motauto World
Vol. 5 (2020), Issue 2, pg(s) 48-50

TRANSPORT TECHNICS. INVESTIGATION OF ELEMENTS. RELIABILITY

Studies of the efficiency of plain bearings used in microturbines

  • 1 FSUE "NAMI", Moscow, Russian Federation

Abstract

The article assesses the possibility of using plain bearings (using the example of radial bearings) in high-speed microturbines (up to 60,000 rpm). The results of mathematical modeling of the thermal state of bearings and the oil layer between the shaft and the bearing surface are presented. A detailed description of the stand, designed to analyze the effectiveness of radial and thrust composite plain bearings, is given. The test bench allows testing of radial, thrust and rolling bearings, taking into account the deformation of the shaft from the weight of the turbine and compressor wheels of the microturbine. The results of an experimental study demonstrate high accuracy of calculations.

Keywords

References

  1. Cordova, Jose Luis, James F. Walton II and Hooshang Heshmat. High Effectiveness, Low Pressure Drop Recuperator for High-Speed and Power Oil-Free Turbogenerator GT2015-43718.
  2. Nadareishvili, G, A. Kostyukov and K. Karpukhin, 2019. Design Features when Using an Effective Microturbine as a Range Extending Engine. Science & Technique, Volume 18, Issue 6, p. 447-460.
  3. Craig,P., 1997, “The Capstone Turbogenerator as an Alternative Power Source” SAE Paper 970292.
  4. Ter-Mkrtichian, G.G., A.S. Terenchenko and K.E. Karpukhin, 2018. Alternative ways for vehicle ICE development. International Journal of Mechanical Engineering and Technology. Vol. 9, Issue 5, pp. 966- 973.
  5. Angantyr, A., and Aidanpää, J. (October 25, 2005). "Constrained Optimization of Gas Turbine Tilting Pad Bearing Designs." ASME. J. Eng. Gas Turbines Power. October 2006; 128(4): 873– 878. https://doi.org/10.1115/1.2179463
  6. Kozlov, A.V., K.E. Karpukhin, A.S. Terenchenko and J.G. Ter-Mkrtichian, 2017. Technical and economic assessment of vehicle recycling cost in the Russian Federation. International Journal of Mechanical Engineering and Technology. Vol. 8, Issue 10, pp. 82-92.
  7. Karpukhin, K., A. Terenchenko, A. Kolbasov and V. Kondrashov, 2019. The use of microturbines as an energy converter for motor transport. International Journal of Innovative Technology and Exploring Engineering, Volume 8, Issue 10, pp. 2700-2703.
  8. N.D. Chaynov. Design of internal combustion engines, M.: Mashinostroyeniye, 2008.
  9. Kozlov, A.V., K.E. Karpukhin, A.S. Terenchenko and J.G. Ter-Mkrtichian, 2017. Technical and economic assessment of vehicle recycling cost in the Russian Federation. International Journal of Mechanical Engineering and Technology. Vol. 8, Issue 10, pp. 82-92.
  10. Chuang-Chia Lin et al., "Fabrication and characterization of a micro turbine/bearing rig," Technical Digest. IEEE International MEMS 99 Conference. Twelfth IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.99CH36291), Orlando, FL, USA, 1999, pp. 529-533, doi: 10.1109/MEMSYS.1999.746884.
  11. Mark E. Otterbein, The Effect of Aircraft Gas Turbine Oils on Roller Bearing Fatigue Life, A S L E Transactions, 1:1, 33-39,DOI: 10.1080/05698195808972312
  12. J. R. Nygaard, M. Rawson, P. Danson & H. K. D. H. Bhadeshia (2014) Bearing steel microstructures after aircraft gas turbine engine service, Materials Science and Technology, 30:15, 1911- 1918, DOI: 10.1179/1743284714Y.0000000548
  13. Conway-Jones, J. M.; Leopard, A. J. (1975). Plain Bearing Damage. Texas A&M University. Gas Turbine Laboratories. Available electronically from http: / /hdl .handle .net /1969 .1 /163835.

Article full text

Download PDF