Failure analysis of reduction gear of an aircraft

Sujata, M and Bhaumik, SK (2004) Failure analysis of reduction gear of an aircraft. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

A fractured reduction gear from an aircraft was sent to the laboratory for analysis. Examination revealed that the reduction gear failed by fatigue. Fatigue cracks were found to have initiated at the undercut roots of the blind holes on the inner surface of the gear. It appears that the fatigue cracks initiated as a result of stress concentration due to the presence of sharp edges at the root of the undercut.

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Aircraft;reduction gear;fatigue;undercut root
Subjects: AERONAUTICS > Aeronautics (General)
CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division
Depositing User: Mrs Manoranjitha M D
Date Deposited: 27 Jul 2011 11:37
Last Modified: 27 Jul 2011 11:37
URI: http://nal-ir.nal.res.in/id/eprint/9615

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