A Study on the Deformation Characteristics of a High-Pressure Hose with respect to the Swaging Strokes

J. Ocean Eng. Technol. 2003;17(4):37-42.

스웨이징 행정에 따른 고압호스의 변형 특성에 관한 연구

김병탁,김형제

부경대학교 기계공학부,부경대학교 대학원 정밀기계공학과

Keywords: Finite Element Method, Swaging Process, Contact Condition, Mooney-Rivlin Model, High-Pressure Hose

핵심용어: 유한요소법, 스웨이징 과정, 접촉조건, 무니-리블린 모델, 고압호스

Abstract

The mechanical components with high-pressure hoses are generally produced by the swaging process. The hoses are composed of the rubber materials and the reinforced braids to support tensile forces. In case they are subjected to high mechanical and thermal loads under severe operating conditions, the oil in hoses can leak at the parts of small clamping forces. In this paper, the deformation characteristics of a fiber-reinforced hose are analyzed with respect to the jaw strokes using the finite element method. The manufacturing process is modeled with a contact problem in consideration of a real situation, and the material properties based on the experimental results are used in the analysis. Examinations of the relationship between the swaging strokes and the deformation behaviors of the hose were made on the basis of the stress and strain values of the hose components. The relations between clamping forces and separating forces are also proposed, in order to estimate clamping forces corresponding to separating forces for the given model.