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
- 학술저널
- 저자정보
- 발행연도
- 2024.2
- 수록면
- 70 - 76 (7page)
- DOI
- 10.5293/kfma.2024.27.1.070
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초록· 키워드
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The diaphragm compressors used in hydrogen fuel cell vehicle charging stations undergo repetitive structural deformation of the metal diaphragm in both upward and downward directions. Due to this characteristic, the capacity and lifespan of the compressor must be designed considering the stress distribution acting on the metal diaphragm. In this study, a 2-way fluid-structure interaction analysis methodology was introduced to derive the stress distribution acting on the metal diaphragm. The analysis was conducted for a single cycle with the suction and exhaust valves. In the fluid analysis results, the pressure changes of oil and hydrogen due to the piston motion of the oil piston wall, as well as the deformation of the metallic diaphragm, were observed. Moreover, based on these findings, it was possible to calculate the mass flow rates at the intake and exhaust valves. In the structural analysis results, the maximum stress was observed at the edge of the diaphragm. When the oil piston was positioned at Top Dead Center (TDC), the diaphragm experienced its highest levels of deformation and stress. The stress at this maximum stress point was approximately three times the average stress. Therefore, when designing the diaphragm, it is imperative to consider the concentration of stress in this specific region.
목차
ABSTRACT
1. 서론
2. 수치해석 기법
3. 수치해석 결과
4. 결론
References
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