Effect of fretting fatigue parameters on fir-tree joint of aero-engine blade disc interface

Registration ID: IJNRD_170130

Published ID: IJNRD1710003

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Arun Khot, A. Bharatish , P. V. Srihari

Fir-tree assembly, Fretting Fatigue, Finite Element, Central composite design, Optimization

In gas turbine engine, one of the major failure is due to fretting fatigue at turbine blade/disc joints. Fretting fatigue generally leads to the degradation of fatigue strength of material due cyclic micro-slip between contacting surfaces. The present study focuses on achieving optimal blade/disc parametric combination in order to minimize stress distribution and effect of fretting fatigue based on Response Surface Method (RSM). In this work most effective geometrical parameters like bottom flank angle, skew angle and number teeth are considered as variables affecting on stress distribution such as von-mises stress, maximum principle stress, shear stress, and contact pressure. Second-order quadratic models are developed for all responses, using central composite design. The developed models are used to determine the optimum parameters. These optimized geometrical parameters are validated as the response values are in reasonable agreement with the predicted values.

Published Paper   E-Certificate

Arun Khot, A. Bharatish , & P. V. Srihari (October-2017). Effect of fretting fatigue parameters on fir-tree joint of aero-engine blade disc interface. INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT, 2(10), 10-14. https://ijnrd.org/papers/IJNRD1710003.pdf

Volume 2 Issue 10, October-2017

Pages : 10-14

Paper Reg. ID: IJNRD_170130

Published Paper Id: IJNRD1710003

Downloads: 000122007

Research Area: Engineering

Author Type: Indian Author

Country: Belagavi, Karnataka , India

Published Paper PDF: https://ijnrd.org/papers/IJNRD1710003.pdf

Published Paper URL: https://ijnrd.org/viewpaperforall?paper=IJNRD1710003

Journal Name: INTERNATIONAL JOURNAL OF NOVEL RESEARCH AND DEVELOPMENT(IJNRD)

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