This work details the heat generation analysis of a turbine aero-engine main-shaft bearing using the computer program Advanced Dynamics Of Rolling Elements (ADORE). The empirical models used for traction and churning heat generation are detailed. The predictions of ADORE are shown to demonstrate the differing contributions of traction and churning to total heat generation at different load/speed regimes. These results are then compared with experimental results. In addition, the results of ADORE are also compared with results from the well-known bearing analysis program SHABERTH (Shaft Bearing Thermal Analysis). The comparisons showed good agreement between ADORE and the experimental results for loads between 13.35 and 53.40 kN and speeds between 1.8 and 2.2 MDN. The results also showed under prediction of heat generation by SHABERTH in this regime. Limitations of both programs were identified and speculated to include limitations in the empirical models due to the lack of available experimental traction data at high speeds/loads. Finally, recommendations for future research are provided which will likely provide significant improvements in the ability to predict bearing heat generation in turbine aero-engine applications.
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ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
June 26–30, 2017
Charlotte, North Carolina, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5077-0
PROCEEDINGS PAPER
Assessment of Bearing Heat Generation Prediction by the Program ADORE With Respect to Experimental Results and SHABERTH Predictions
Brian D. Nicholson,
Brian D. Nicholson
Air Force Research Laboratory, Wright-Patterson AFB, OH
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Garry D. Givan,
Garry D. Givan
Air Force Research Laboratory, Wright-Patterson AFB, OH
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Kevin L. Thompson,
Kevin L. Thompson
Air Force Research Laboratory, Wright-Patterson AFB, OH
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Justin Mason,
Justin Mason
Air Force Research Laboratory, Wright-Patterson AFB, OH
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Pradeep K. Gupta,
Pradeep K. Gupta
PKG, Inc., Clifton Park, NY
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Hitesh K. Trivedi
Hitesh K. Trivedi
UES, Inc., Dayton, OH
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Brian D. Nicholson
Air Force Research Laboratory, Wright-Patterson AFB, OH
Garry D. Givan
Air Force Research Laboratory, Wright-Patterson AFB, OH
Kevin L. Thompson
Air Force Research Laboratory, Wright-Patterson AFB, OH
Justin Mason
Air Force Research Laboratory, Wright-Patterson AFB, OH
Pradeep K. Gupta
PKG, Inc., Clifton Park, NY
Hitesh K. Trivedi
UES, Inc., Dayton, OH
Paper No:
GT2017-63010, V001T01A001; 10 pages
Published Online:
August 17, 2017
Citation
Nicholson, BD, Givan, GD, Thompson, KL, Mason, J, Gupta, PK, & Trivedi, HK. "Assessment of Bearing Heat Generation Prediction by the Program ADORE With Respect to Experimental Results and SHABERTH Predictions." Proceedings of the ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. Volume 1: Aircraft Engine; Fans and Blowers; Marine; Honors and Awards. Charlotte, North Carolina, USA. June 26–30, 2017. V001T01A001. ASME. https://doi.org/10.1115/GT2017-63010
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