• Title/Summary/Keyword: 필라멘트 와인딩(filament winding)

Search Result 3, Processing Time 0.035 seconds

A Study on The Vibrational Characteristics of Automotive Vehicle Propeller Shaft with Carbon/Epoxy Composite Material (자동차용 탄소/에폭시 복합재료 추진축의 진동특성에 관한 연구)

  • 공창덕;김기범
    • Proceedings of the Korean Society of Propulsion Engineers Conference
    • /
    • 1997.11a
    • /
    • pp.31-31
    • /
    • 1997
  • 우수한 비강성과 비강도를 지닌 복합재료를 이용한 자동차용 추진축(Propeller Shaft)의 사용은 자동차의 구조정량화, 소음/진동 감소, 승차감 향상 측면에서 개선된 효과를 기대할 수 있다. 본 연구에서는 탄소섬유/에폭시 필라멘트 와인딩(Filament Winding) 공빔을 적용한 복합재료 튜브와 금속재 플랜지 그리고 유니버셜 조인트로 구성된 상용 차의 추진축 개발과정 중 축의 진동특성에 대한 적합한 형상과 물성을 찾기 위해 유한요소법을 적용한 자유진동 해석과 FFT 해석장비를 이용한 진동실험 그리고 축을 운용속도까지 회전시켜 공진(Resonance) 현상 발생 유무를 소음량의 측정으로 판단하는 시험이 수행되었다. 그 결과 요구조건에 적합한 진동특성을 나타내는 추진축의 형상을 결정할 수 있었다.

  • PDF

KSR-III 복합재 가압탱크의 설계 및 제작

  • Kong, Cheol-Won;Yoon, Chong-Hoon;Jang, Young-Soon;Yi, Yeong-Moo
    • Aerospace Engineering and Technology
    • /
    • v.2 no.2
    • /
    • pp.124-132
    • /
    • 2003
  • This paper described the structural design and the fabrication procedure of KSR-III composite pressure tank. The type of the composite pressure tank was COPV(Composite Overwrapped Pressure Vessel). A non-load sharing liner was made of aluminum 6061-0 and the liner provided a helium gas seal. The composite pressure tank was winded using T700 carbon/epoxy on the liner. Because the aluminum liner was thin, multiple cure cycles were applied to the filament winding technique. The multiple cure cycles prevented the liner-cylinder from losing a circular shape. A fitting force at the metallic boss was spread to the carbon fiber by a boss ring. The boss ring also prevented a local deformation at the boss part.

  • PDF

Effect of Freezing and Thawing on Adhesion of Cement Concrete with Coarse-sand Coated FRP (규사코팅 FRP와 콘크리트 부착특성에 동결융해가 미치는 영향)

  • Lee, Gyu Phil;Park, Kwang Phil;Hwang, Jae Hong;Kim, Dong Gyou
    • Journal of the Korea institute for structural maintenance and inspection
    • /
    • v.17 no.2
    • /
    • pp.117-123
    • /
    • 2013
  • As fiber reinforced polymer (FRP) material is appled for a curved structure such as tunnel, FRP material must has a curved shape. Until now, the curved FRP material has been producted by hand-lay-up or filament winding work. It is impossible for mass production of the curved FRP material by these methods. Also, the quality of product by these methods is lower than that by pultrusion method. New pultrusion method and equipment had been developed for production of FRP material with steady curvature. The objective of this study is to evaluate the effect of freezing and thawing on adhesion of cement concrete with coarse-sand coated FRP in repair and reinforcement of cement-concrete structure using curved FRP material.