Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Research on CR/Nylon 6 Cord Rubber Sleeve of Rubber Air Spring

고무 공기 스프링용 CR/Nylon 6 코드 고무 슬리브에 대한 연구

  • Seo, Jae-Chan (Department of Polymer Science & Engineering, Kyungpook National University) ;
  • Kim, Dae-Jin (Agency of LINC, Kyungpook National University) ;
  • Park, Hae-Youn (Department of Polymer Science & Engineering, Kyungpook National University) ;
  • Seo, Kwan-Ho (Department of Polymer Science & Engineering, Kyungpook National University)
  • 서재찬 (경북대학교 고분자공학과) ;
  • 김대진 (경북대학교 산학협력선도대학사업단) ;
  • 박해윤 (경북대학교 고분자공학과) ;
  • 서관호 (경북대학교 고분자공학과)
  • Received : 2014.10.20
  • Accepted : 2014.12.03
  • Published : 2014.12.31
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Abstract

Rubber air spring (RAS) is a special suspension device for the industries of automobile, railroad car and other transportation. A RAS serves as a spring component with the elastic effect of compression and expansion of air in a composite rubber bag. The main component of RAS is the rubber sleeve. Rubber sleeve is the composite which is made up of combination of chloroprene rubber (CR) and nylon 6 cord, and the adhesive strength between CR and nylon 6 cord is very important. In this study, considering the effects of additives in rubber sleeve, various physical properties were tested to find the optimal combination of composition and conditions. Further, in order to select the optimum orientation of the reinforcing fibers, numerical analysis was performed using the finite elements method. After assembling all components of RAS, it was mounted on an actual vehicle, and then it was tested air leakage, fatigue life and fundamental properties.

고무 공기 스프링(rubber air spring)은 자동차, 철도차량 등 수송기기의 서스펜션 장치로 사용되고 있다. 고무 공기 스프링은 고무 에어백의 압축과 팽창을 통한 탄성효과로 스프링의 역할을 한다. 고무 공기 스프링의 주요 구성요소 중 하나가 고무 슬리브(rubber sleeve)이다. 고무 슬리브는 주요 구성성분인 클로로프렌 고무와 나일론 6 코드 간의 접착이 매우 중요하다. 본 연구에서는 첨가제의 영향을 고려한 고무 슬리브의 최적 배합조성과 조건을 찾기 위해 다양한 물성시험을 하였다. 또한, 보강섬유의 최적 배향을 선정하기 위해 유한요소해석법을 이용한 수치해석을 수행하였다. 고무 공기 스프링을 제조하여 실제 차량에 장착하여 기초물성과 피로수명 및 기밀성을 시험하였다.

Keywords

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