http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
드레인 오리피스를 갖는 포펫 밸브의 유동력을 고려한 동특성 모델링
정황훈(H. H. Jeong),임광호(G. H. Lim),박세창(S. C. Park),윤소남(S. N. Yun),윤종일(J. I. Yoon) 유공압건설기계학회 2019 유공압건설기계학회 학술대회논문집 Vol.2019 No.6
A poppet valve has better specification on responsibility and leakage than a spool valve. But poppet valve has disadvantage on fluid flow force because poppet lie on unstable suspension condition that is supported by mechanical spring and electro magnetic force. If poppet system is unstable in the valve, poppet raises system’s noise and decreases system’s responsibility. To avoid poppet’s bad affection, poppet valve has to analysis its stability when valve was designed. A poppet valve’s stability already had studied when its parameters were changed such as poppet’s shape, displacement, spring constant. This study concerns about mathematical model for poppet valve system that deals with fluid flow force. For this purpose, poppet valve’s flow force was induced by momentum theory on divergent flow condition. And induced flow force was imported on poppet’s motion equation.