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http://dx.doi.org/10.12985/ksaa.2012.20.2.007

The Analysis and the Qualification Test Procedures for Oleo-pneumatic Landing Gear  

Kim, Tae-Uk (한국항공우주연구원)
Lee, Sang-Wook (한국항공우주연구원)
Kim, Sung-Chan (한국항공우주연구원)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.20, no.2, 2012 , pp. 7-12 More about this Journal
Abstract
A landing gear absorbs the impact energy during the touchdown and it generally consists of an oleo-pneumatic shock absorber and structural components. It should be designed not only to satisfy the static and fatigue strength requirements but to have the sufficient shock absorbing efficiency. The design loads and shock absorbing performance are to be validated by tests, which is required by MIL Spec and FAR, etc. This paper presents the development procedures from the design requirements to the qualification tests and technical points to be considered, with examples of the helicopter landing gear development.
Keywords
Landing Gear; Oleo-pneumatic Shock Absorber; Dropl Test; Static Test; Fatigue Test;
Citations & Related Records
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  • Reference
1 MIL-STD-810F, 2000, Environmental Engineering Considerations and Laboratory Tests.
2 Curry, N. S., 1988, Aircraft Landing Gear Design: Principles and Pratice, AIAA, Washington D.C.
3 MIL-T-6053C, 1967, Test, Impact, Shock Absorber Landing Gear, Aircraft.
4 Code of Federal Regulations No. 14, 2003, Aeronautics and Space, part 29.
5 http://www.vi-grade.com
6 MIL-HDBK-5J, 2003, Metallic Materials and Elements for Aerospace Vehicle Structures.
7 MIL-L-8552C, 1965, Landing Gear, Aircraft Shock Absorber(Air-Oil Type).