http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
원전 유압구동 균형 글로브 밸브의 정적진단시험 분석을 활용한 동적특성 모델링 및 성능평가 연구
김재형(Jaehyung Kim),박태국(Taekook Park),이상혁(Sang Hyuk Lee),류호근(Ho-Geun Ryu),임태묵(Taemook Lim),이정희(Jung Hee Lee) 한국전산유체공학회 2020 한국전산유체공학회지 Vol.25 No.3
The 1D dynamic analysis model is made and validated by static diagnosis experiment result, which is the requirement of ASME QME-1 standard. The operation of valve assembly is qualified near the closing point and that qualification result also can be used on the evaluation of operation throughout whole lift with the test based 1D dynamic analysis model. The functional qualification in partially maintained differential pressure can be used to the qualification in wholly maintained differential pressure, in which the maximum differential pressure is maintained throughout whole lifting. The flow coefficient by CFD is used in the calculation of pressure on the valve assembly. And the upper pressure in pipe is used in the calculation of the various forces on the valve body. The packing force by the effect of the fluid pressure is calculated, where the strength of packing rings and two friction coefficients between stem and bonnet and between stem and packing are used. The static diagnosis in no flow condition can be extended to the dynamic diagnosis in flow condition using the test based 1D dynamic analysis model.