shock absorber 의 spring 유한요소 해석
DESCRIPTION
SHOCK ABSORBER 의 SPRING 유한요소 해석. ANSYS Workbench 를 이용한 스프링 해석. 20022169 김대영 20012687 김정환 20012443 허승현. 2. Boundary Condition. Contents. 1. Introduction. 3. Simulation. 4. Results and Discussion. 5. Conclusions. Introduction. - PowerPoint PPT PresentationTRANSCRIPT
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SHOCK ABSORBER 의 SPRING 유한요소 해석
ANSYS Workbench 를 이용한 스프링 해석
20022169 김대영20012687 김정환20012443 허승현
![Page 2: SHOCK ABSORBER 의 SPRING 유한요소 해석](https://reader035.vdocuments.mx/reader035/viewer/2022082209/56815df8550346895dcc2eae/html5/thumbnails/2.jpg)
Contents
1. Introduction
2. Boundary Condition
3. Simulation
5. Conclusions
4. Results and Discussion
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Introduction SHOCK ABSORBER 내에 삽입되어 있는 SPRING 이
사용 중에 깨어지는 현상이 발생함 .
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SPRING 의 변위에 따른 최대 항복 응력 , 최대 전단응력 과 피로강도를 해석 . Environment: ANSYS Workbench v10.0
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Introduction
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Spring 이란 ? 힘 ( 외력 ) 을 가하면 형태가 변화되어 , 그 힘을 제거하면 원형 으로 되돌아가게 하는 목적으로 만들어진 탄력성이 있는 기계요소 .
에너지의 흡수 또는 축적의 능력을 최대한으로 발휘 할 수 있도록 고안된 것을 스프링이라 한다 .
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Boundary Condition
Young's modulus (MPa)
210000
Poisson's ratio 0.3Yield strength
(MPa) 350
Ultimate strength, Su (MPa)
4505
설계변수 변위 12mm, 32mm 와 베어링의 장착뮤무
Mechanical Properties of 51CrV4 Steel
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Boundary Condition
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Mesh Method : hex dominant
Element Size : Spring 10mm , Load Aplly : 10mm, Fixed 10mm Refinement : 2
Nodes 23272Elemen
t 11407
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Simulation Displacement 12mm(von Mises Stress)
최대 von Mises Stress 224.0 MPa
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Simulation Displacement 12mm(Shear Stress XY)
최대 Shear Stress 98.165 MPa
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Simulation Displacement 32mm(von Mises Stress)
최대 von Mises Stress 597.334Mpa
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Simulation Displacement 32mm(Shear Stress XY)
최대 Shear Stress 261.773Mpa
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Simulation Bearing 설치 & Displacement 12mm
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최대 von Mises Stress 241.233 Mpa
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Simulation Bearing 설치 & Displacement 12mm
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최대 Shear Stress 105.779 Mpa
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Simulation Bearing 설치 & Displacement 32mm( Shear Stress XY)
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최대 von Mises Stress 643.261 Mpa
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Simulation Bearing 설치 & Displacement 32mm( Shear Stress XY)
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최대 Shear Stress 282.077 Mpa
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Results and Discussion
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변위에 따른 Von Mises 결과 그래프 (displacement 12)
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Results and Discussion
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변위에 따른 Shear 결과 그래프 (displacement 12)
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Results and Discussion
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변위에 따른 Von Mises 결과 그래프 ( 베어링설치&displacement 32)
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Results and Discussion
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변위에 따른 Shear 결과 그래프 ( 베어링 설치 &displacement 32)
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Conclusions
mesh 의 개수에 따라서 약간의 차이가 있음 .
베어링의 유무에 따라서 차이가 남 .
경계조건에 따라서 차이가 남 .
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