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

유공압 착륙장치 해석 및 시험평가

  • Received : 2012.05.25
  • Accepted : 2012.06.07
  • Published : 2012.06.30

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

References

  1. Curry, N. S., 1988, Aircraft Landing Gear Design: Principles and Pratice, AIAA, Washington D.C.
  2. MIL-T-6053C, 1967, Test, Impact, Shock Absorber Landing Gear, Aircraft.
  3. Code of Federal Regulations No. 14, 2003, Aeronautics and Space, part 29.
  4. http://www.vi-grade.com
  5. MIL-HDBK-5J, 2003, Metallic Materials and Elements for Aerospace Vehicle Structures.
  6. MIL-L-8552C, 1965, Landing Gear, Aircraft Shock Absorber(Air-Oil Type).
  7. MIL-STD-810F, 2000, Environmental Engineering Considerations and Laboratory Tests.