Failure Analysis on HPT Blade of CFM56-7B

DOI

10.2991/emeit.2012.468How to use a DOI?

Keywords

Transition zone. Edge of contact. Electronic speculum. Weibull distribution. Parameter estimation. Finite element method. Johnson median rank time method. Bayes estimation.

Abstract

The high pressure turbine blade of CFM56-7B engine is risky to crack, it’s failure modes include transition zone crack, shank rupture, min-neck damage, edge of contact and split-shelf clog, which could be modeled and simulated by finite element method. The root cause of crack is found by aforementioned simulation and electronic speculum to modify the blade design. And the reliability of blades could be calculated by Weibull distribution to get soft-time limitation in replace of related blades, in which the Weibull parameter would be estimated with Johnson median rank time method and Bayes estimation method for the censored data.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Yu Gao
AU  - Xin-feng Chen
AU  - Nan Li
PY  - 2012/09
DA  - 2012/09
TI  - Failure Analysis on HPT Blade of CFM56-7B
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 2116
EP  - 2119
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.468
DO  - 10.2991/emeit.2012.468
ID  - Gao2012/09
ER  -