지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 이석순
- 발행연도
- 2016
- 저작권
- 경상대학교 논문은 저작권에 의해 보호받습니다.
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이 논문의 연구 히스토리 (2)
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초록· 키워드
오류제보하기
For the most part of machine structure is assembled by
variable method. Especially, assembly using bolt is the most general method for machine or equipment. Bolted joint is very useful and essential method for disassembly and reassembly of machine. But it has weak property such as losing clamp force by vibration or fatigue failure.
Changes of stiffness and contact stress on bolt joint parameter as bolt, nut, washer, flange can be expected by applying various pretension to bolt using finite element analysis for pressure vessel. Using finite element analysis(FEA) in design process can make reduce development costs. It can prevent defect of manufactured goods by water or pressure leaking from the vessel and also design and manufacture effectively.
In this study, CATIA V5 is used for 3D modeling and HyperMesh 11.0 is used for pre-processing. ABAQUS V6.12/CAE and ANSYS V14.0 are used for post processing and finite element analysis.
In this study, bolted joint that works for sealing on one of reactor pressure vessel of manufacturing equipment for emulsion fuel in the 200L class are performed using FEA.
And these results are compared with effect of pretension, changes of stiffness and distribution of contact stress so that verify propriety of the safety and optimal design. The numerical results show that suitable pretension for bolted joint reduced 17% of the stress on bolt and also complement stress concentration. The methodology for bolt pretension is very useful to reduce the cost of joint parameter(bolt, nut, washer, flange) to know it’s behavior before manufacturing actual product.
variable method. Especially, assembly using bolt is the most general method for machine or equipment. Bolted joint is very useful and essential method for disassembly and reassembly of machine. But it has weak property such as losing clamp force by vibration or fatigue failure.
Changes of stiffness and contact stress on bolt joint parameter as bolt, nut, washer, flange can be expected by applying various pretension to bolt using finite element analysis for pressure vessel. Using finite element analysis(FEA) in design process can make reduce development costs. It can prevent defect of manufactured goods by water or pressure leaking from the vessel and also design and manufacture effectively.
In this study, CATIA V5 is used for 3D modeling and HyperMesh 11.0 is used for pre-processing. ABAQUS V6.12/CAE and ANSYS V14.0 are used for post processing and finite element analysis.
In this study, bolted joint that works for sealing on one of reactor pressure vessel of manufacturing equipment for emulsion fuel in the 200L class are performed using FEA.
And these results are compared with effect of pretension, changes of stiffness and distribution of contact stress so that verify propriety of the safety and optimal design. The numerical results show that suitable pretension for bolted joint reduced 17% of the stress on bolt and also complement stress concentration. The methodology for bolt pretension is very useful to reduce the cost of joint parameter(bolt, nut, washer, flange) to know it’s behavior before manufacturing actual product.
목차
I . 서론 11.1 연구의 배경 및 목적 11.2 연구 내용 31.3 연구 수행 과정 4II . 볼트 조인트의 기본 개념과 이론 72.1 볼트 조인트의 기본 개념 72.2 예하중(Pretension)의 이론 및 계산식 102.3 압력 용기의 유한요소 해석과정 122.4 경계조건의 설정 16III . 볼트 예하중 변화에 따른 해석결과 193.1 예하중을 적용하지 않은 해석 결과 193.2 1500 [N]의 예하중 해석 결과 233.3 2000 [N]의 예하중 해석 결과 273.4 2500 [N]의 예하중 해석 결과 313.5 3000 [N]의 예하중 해석 결과 353.6 3500 [N]의 예하중 해석 결과 393.7 4000 [N]의 예하중 해석 결과 433.8 4500 [N]의 예하중 해석 결과 473.9 해석결과 비교분석 53IV . 결론 56참고문헌 57
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