Failure analysis of hydraulic pump drive gear assembly parts of a helicopter

Suresh Kumar, M and Madan, M and Venkataswamy, MA and Sujata, M and Bhaumik, SK (2006) Failure analysis of hydraulic pump drive gear assembly parts of a helicopter. Project Report. National Aerospace Laboratories, Bangalore.

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Abstract

Examination revealed that the splines of the gears in question have worn out by adhesive wear mechanism. This type of wear is generally observed when two metallic surfaces slide against each other under pressure. Study confirmed that neither metallurgical abnormalities nor excessive pressure on the splines was responsible for the failure. The failure is a progressive one and has taken place over a period of time. With the available information and evidences, it was not possible to identify the exact cause of failure

Item Type: Proj.Doc/Technical Report (Project Report)
Uncontrolled Keywords: Helicopter; fuel pump; drive gear assembly; splines; adhesive wear
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Division/Department: Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division, Materials Science Division
Depositing User: Raghavendra R chandu
Date Deposited: 20 Jul 2011 10:19
Last Modified: 20 Jul 2011 10:19
URI: http://nal-ir.nal.res.in/id/eprint/9498

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