Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A Study on Contact Characteristics by the Geometry Variation of Beam Seal Fitting of an Aircraft Fuel Hose

항공기용 연료호스의 빔 시일 피팅의 형상변화에 따른 접촉특성에 관한 연구

  • Jeon, Jun-Young (Department of Mechanical Design Engineering, Pukyong National University) ;
  • Kim, Byung-Tak (Department of Mechanical & Automotive Engineering, Pukyong National University)
  • Received : 2013.10.08
  • Accepted : 2013.11.11
  • Published : 2013.12.31
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Abstract

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.

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References

  1. Specification : SAE AS 4207, 4209, 85420, 85421, MIL-S-8897 C , Technical requirements : AS 604D, AS620F, AS1339F, AS1946B, AS2078
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