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항공기용 연료호스의 빔 시일 피팅의 형상변화에 따른 접촉특성에 관한 연구

A Study on Contact Characteristics by the Geometry Variation of Beam Seal Fitting of an Aircraft Fuel Hose

  • Jeon, Jun-Young (Department of Mechanical Design Engineering, Pukyong National University) ;
  • Kim, Byung-Tak (Department of Mechanical & Automotive Engineering, Pukyong National University)
  • 투고 : 2013.10.08
  • 심사 : 2013.11.11
  • 발행 : 2013.12.31

초록

An aircraft fuel hose is a kind of high pressure hose, and generally consists of a nipple, a socket, an inner tube, and a reinforcement layer to increase the tensile strength. Especially the nipple supports the other components in manufacturing stages such as the swaging or crimping processes however, the nipple also serves to prevent leakage in cases of hose engagement with a hydraulic system. To ensure the seal of the hose assembly, a beam seal fitting with metal-to-metal contact is usually adopted at the end of a nipple. Therefore, the geometry of the beam is an important parameter to be determined to make sure there is sufficient contact force. This study aims to investigate the effects of beam seal geometry on the contact force by changing the inclined angle and the thickness of the beam. The results reveal that the proper thickness and inclined angle of the beam seal are 0.45 mm and $8.5^{\circ}$, respectively.

키워드

참고문헌

  1. Specification : SAE AS 4207, 4209, 85420, 85421, MIL-S-8897 C , Technical requirements : AS 604D, AS620F, AS1339F, AS1946B, AS2078
  2. Kim, H. J. and Kim, B. T., "Nonlinear Finite Element Analysis for the Swaging of a High-Pressure Hose," J. of KSPSE, Vol. 7, No. 2, pp. 44-50, 2003.
  3. Baek, J. K. and Kim, B. T., "A Study on the Clamping Force of an Automotive Air-conditioning Hose according to the Friction Coefficient,", J. of KSMPE, Vol. 10, No. 3, pp. 39-46, 2011.
  4. Paker Hannifin Corporation, "Dynatube fittings for the Aerospace Industry", Jacksonvile, Florida, pp. 2-16, 2007.
  5. Jeon, J. Y., Kim, B. T. and Kim, K. H., "Finite Element Analysis for the Fitting of an Aircraft Fuel Hose,", Proceeding of the KSMPE Autumn Conference, p. 77, 2011.
  6. SAE AS 85421, Table.3 Torque Requirement
  7. Song, J. B. et al., Mechanical Design, Bookshill, pp. 434-437, 2013.