Analysis of failed bonded seal of main undercarriage jack of an aircraft
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
Analysis of failed bonded seal of main undercarriage jack of an aircraft
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| Creator |
Bhaumik, SK
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| Subject |
Aeronautics (General)
Chemistry and Materials (General) |
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| Description |
Two failed bonded seals of main undercarriage jack of an aircraft were forwarded to the laboratory for analysing the cause of failure. Analysis suggests that the bonded seals were damaged at the time of assembly itself which subsequently led to the hydraulic leak on use. Dimensional check indicated that either the bolt with higher shank diameter or bonded seal with lesser inner diameter than that recommended by the seal manufacturer was used in the assembly. This had resulted in the extrusion of the sealing elastomer material through the bolt head – washer interface leading to the damage to the seal. This was demonstrated by dis-assembling a newly assembled seal. A detailed analysis is presented in this report.
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| Publisher |
National Aerospace Laboratories
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| Date |
2004
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Identifier |
Bhaumik, SK (2004) Analysis of failed bonded seal of main undercarriage jack of an aircraft. Project Report. National Aerospace Laboratories, Bangalore.
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| Relation |
http://nal-ir.nal.res.in/9682/
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