Failure analysis of collector pinion of a helicopter
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Failure analysis of collector pinion of a helicopter
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| Creator |
Madan, M
Suresh Kumar, M Venkataswamy, MA Sujata, M Parameswara, MA Bhaumik, SK |
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| Subject |
Aeronautics (General)
Chemistry and Materials (General) |
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| Description |
Evidences suggest that the collector pinion has failed by spalling. Spalling was the manifestation of surface contact fatigue resulting from high contact stresses on the working flank. Analysis showed that inadequate tip relief of the collector gear teeth could be the most probable reason for the failure. The material of construction, microstructure, and case and core hardness of the pinion were found to conform to specification. No metallurgical abnormalities were found responsible for the failure. In general, the load on the pinion appears to be on the higher side.
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| Publisher |
National Aerospace Laboratories
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| Date |
2005
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Identifier |
Madan, M and Suresh Kumar, M and Venkataswamy, MA and Sujata, M and Parameswara, MA and Bhaumik, SK (2005) Failure analysis of collector pinion of a helicopter. Project Report. National Aerospace Laboratories, Bangalore.
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| Relation |
http://nal-ir.nal.res.in/10108/
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