Failure analysis of engine gearbox components

Suresh Kumar, M and Madan, M and Venkataswamy, MA and Sujata, M and Parameswara, MA and Bhaumik, SK (2005) Failure analysis of engine gearbox components. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

Fractured front cover plate, IDG and RFP studs from the vibration tested engine gearbox were analyzed. Fractographic examination and microstructural analysis showed that all the three components have failed by high cycle-low stress fatigue. The material of the studs conforms to GTM-SU-718 material while the front cover plate casting does not conform to AU2GN specification. It is recommended to use material as per the specification and also, check the quality of casting by radiographic technique. Whether or not the components have undergone resonance during vibration test needs to be examined.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Engine gearbox;front cover plate;studs;fatigue
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Mrs Manoranjitha M D
Date Deposited: 05 Dec 2011 16:49
Last Modified: 05 Dec 2011 16:49
URI: http://nal-ir.nal.res.in/id/eprint/10125

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