• 제목/요약/키워드: 무니-리블린모델

검색결과 5건 처리시간 0.02초

고무하우징을 갖는 장력센서의 변형거동 해석 (Stress Analysis of a Tension Sensor with a Rubber Housing for a Fence Intrusion Detection System)

  • 이형욱;장광걸;허훈;강대임
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2001년도 춘계학술대회논문집A
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    • pp.698-703
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    • 2001
  • This paper is concerned with the nonlinear hyperelastic problem fur the incompressible characteristics of the rubber. Tension sensor is a strain gage type load cell element for a fence intrusion detection system and consists of the sensing part and the rubber housing. The analysis includes an elastic analysis and a hyperelastic analysis of a tension sensor for the deformed shape and variation of the maximum strain on the sensing part with respect to the vertical load. Numerical results show that the hyperelastic model is stiffer and less deformed than the elastic model. Comparing with the experimental test data, we know the hyperelastic model is the better approximation than the elastic model.

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고압호스 스웨이징에 대한 비선형 유한요소해석 (Nonlinear Finite Element Analysis for the Swaging of a High-Pressure Hose)

  • 김병탁;김형제
    • 동력기계공학회지
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    • 제7권2호
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    • pp.44-50
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    • 2003
  • The power steering hose is a kind of high-pressure hose with reinforced braids in rubber material. It is usually manufactured through the swaging process. In this paper, the deformation characteristics of a power steering hose during the swaging process were analyzed using the nonlinear finite element method. The material properties were obtained on experiments, and the contact conditions were used in consideration of real manufacturing process. Investigations were focused on the stress and strain values of the hose and meta] components at the maximum jaw stroke and at the completion of the process. Especially, the results of inner rubber component were interpreted in detail, because of its important role in the hose efficiency.

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스웨이징 행정에 따른 고압호스의 변형 특성에 관한 연구 (A Study on the Deformation Characteristics of a High-Pressure Hose with respect to the Swaging Strokes)

  • 김병탁;김형제
    • 한국해양공학회지
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    • 제17권4호
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    • pp.37-42
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    • 2003
  • 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.

ANSYS Workbench를 활용한 타이어 구조 해석 (Structural Analysis of a Tire using an ANSYS Workbench)

  • 한철희
    • 융복합기술연구소 논문집
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    • 제1권1호
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    • pp.9-12
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    • 2011
  • Structural analysis of a tire is done using a commercial software, ANSYS Workbench. The properties of rubber of the tire is represented using a Mooney-Rivlin model. The bead in the tire is made of structural steel. 3D CAD model of the tire is obtained from a commercial CAD-specialized software, CATIA. Using an imported 3D CAD geometric model, a mesh system with fifty thousand nodes is constructed using ANSYS. A time-variant point force is applied to the rim of the tire, and the deformation of the tire is computed. It is found that both bending and twisting of the tire are observed where the point force is applied. The deformation of the tire is asymmetric, which results in the help of ripping the tire using the helper. It is also found that the deformation undergoes linearly with the applied force. When the force is larger than 1500N, then the deformation becomes larger than the half of the thickness of the tire. In the future, a more realistic rubber model will be applied and validated with the measured data.

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유한요소해석을 통한 자동차용 글라스의 승강성능 예측 (Prediction of Lift Performance of Automotive Glass Using Finite Element Analysis)

  • 문형일;김헌영;최천;이인혁;김도형
    • 대한기계학회논문집A
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    • 제34권11호
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    • pp.1749-1755
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    • 2010
  • 파워 글라스 시스템의 특성은 주로 윈도우 레귤레이터의 거동 특성과 글라스 런에 의한 저항에 의해 결정되며, 시험 결과 분석을 통해 시스템의 성능을 예측한다. 본 논문에서는 시험적인 방법의 한계를 해결하기 위해, 익스플리시트 코드를 사용한 해석적 방법을 제안하였다. 해석 모델에 사용한 글라스 런은 무니-리블린 모델을 사용하여 모델링 하였고, 다양한 조건에서의 마찰 시험을 실시하여 마찰계수를 구하였다. 또한, 윈도우 레귤레이터 파트의 메커니즘은 패스트 벨트 시스템과 슬립 링요소를 사용하여 모델링 하였고, 상승 시 발생하는 전류와 하중과의 상관관계 분석을 통해 레귤레이션 메커니즘의 신뢰성을 검증하였고, 모터의 특성을 고려하여 신뢰성 있는 글라스 상승 시간을 예측하였다.