김경욱 이용복 정진택 김창호 2024-01-20T23:04:42Z 2024-01-20T23:04:42Z 2021-09-06 2008-06 2713-8011 https://pubs.kist.re.kr/handle/201004/133440 The floating ring seal which is used in the high pressure turbo pump is frequently used in the oxidizer pump and the fuel pump of the turbo pump of the liquid propulsion rocket, because it is able to minimize clearance to decrease the leakage flow rate. But, the floating ring seal has a tendency to increase instability in decreasing eccentricity ratio. To complement this weakness, it is devised bump floating ring seal which is inserted bump in the outer surface. It has various experiment results. But the theoretical study of the bump floating ring seal didn't investigated yet. In this paper, we analyse about static characteristics of bump floating ring seal, compared previous experimental results. To analyze the characteristic of bump floating ring seal, we coupled perturbation method of floating ring seal and FEM of bump foil. Korean 한국트라이볼로지학회 범프 플로팅 링 실의 정특성에 대한 해석적 연구 Theoretical research of Static Characteristics of Bump Floating Ring Seal Article 2 한국트라이볼로지학회지, v.24, no.3, pp.140 - 146 한국트라이볼로지학회지 24 3 140 146 kci ART001378013 bump foil bump floating ring seal eccentricity ratio