Journal of Aerospace System Engineering (항공우주시스템공학회지)

The Society for Aerospace System Engineering (항공우주시스템공학회)
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A Study on Life Cycle Extension of T-50 Aircraft Hydraulic Control Valve

T-50 항공기 유압조절 밸브 수명연장 방안

  • 남용석 (국방기술품질원 항공센터) ;
  • 김태환 (국방기술품질원 항공센터) ;
  • 백승진 (한국항공우주산업(주)) ;
  • 김승현 (한국항공우주산업(주)) ;
  • 송석봉 (국방기술품질원 항공센터)
  • Published : 2010.06.30
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Abstract

In General, the hydraulic system of T-50 Advanced Trainer is applied to flight control system, wheel & Brake system and fuel system for aircraft operation. The hydraulic system is operation with pressure of 3000psi. and many mechanical parts which is operated by hydraulic system has been stressed in incomplete environment same as heat and friction. for example, Oil leakage had occurred in the shutoff valve of FFP used in a certain period of time. After study, The crack progressed by fatigue due to the irregular hydraulic pressure and vibration has been identified as the reason of oil leakage. This paper presents life cycle extension plans of FFP shutoff valve by configuration improvements of shutoff valve and FFP hydraulic motor.

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