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이선형(S. H. Lee),주태우(T. W. Joo),강영수(Y. S. Kang),김길영(K. Y. Kim),허준영(J. Y. Huh) 유공압건설기계학회 2013 유공압건설기계학회 학술대회논문집 Vol.2013 No.6
The term "fuse" is used here in analogy with electrical fuses which perform a similar function. The electrical fuse senses the overload and disconnects the electrical circuit effectively shutting it off. In this way, further equipment damage is eliminated and a potential safety hazard is avoided. The hydraulic fuse provides similar protection to a hydraulic circuit. A hydraulic fuse is used to detect a leakage condition(such as a broken line or a disconnected hose) and shut off the circuit to reduce the loss of hydraulic pressure. It is a safety feature, designed to allow systems to continue operating, or at least to not fail catastrophically, in the event of a system breach. It does this by stopping the flow of hydraulic fluid through itself if the flow exceeds a predetermined passed volume. The hydraulic fuse may be self-resetting or have a manual reset. In this paper, we studied temperature parameters influencing upon volumetric capacity of the hydraulic fuse optimized performance.
자동차 헤드램프 세척용 재순환 챔버 노즐의 내부유동이 분무장에 미치는 영향
신정환 ( J. H. Shin ),이인철 ( I. C. Lee ),강영수 ( Y. S. Kang ),김종현 ( J. H. Kim ),구자삼 ( J. S. Koo ),구자예 ( J. Y. Koo ) 한국분무공학회 2011 한국액체미립화학회지 Vol.16 No.2
Atomized liquid jets from the washing nozzle which configured with recirculation chamber for cleaning hot-zone area are accelerated and impinged on the head lamp surface. Cleaning efficiency of head lamp can be increased with injecting washing fluids into the hot-zone area. Experimental and numerical studies with various design parameters were executed to reveal the relations between internal geometry and internal flow in the washing nozzle. Spray structures were fitted with each of the head lamp surfaces and spray nozzles were optimized to the spray pattern. The recirculation chamber induces a recirculation flow and can be decreased the pressures perturbation inside the chamber. Orifice determines the mass flow rate. When the diameter of orifice is excessively large, it showed an unstable spray pattern. As a nozzle exit angle increases, density distributions are separated with two section. Also, as a protrusion length of nozzle exit increases, spray patterns are spread into a large area and density distributions showed unstable trend.
기상변화에 따른 아스팔트 포장 내부 온도변화 예측모델에 관한 연구
김수삼,강영수 중앙대학교 생산공학연구소 1992 생산공학연구소 논문집 Vol.1 No.1
Properties of the asphalt concrete structure such as elastic modulus and shearing resistance differ considerably according to pavement temperature because of viscosity and heat susceptibility of asphaltic binder. Temperature of asphalt concrete pavement in service is affected by climatic influences especially the change ambient air temperature and insolation. In this study, temperature variation of pavement structure according to climatic environment is anticipated. Influences on pavement design arise from the change of elastic modulus due to regional and seasonal variation of pavement temperature shall be considered. As a result, the observed results of pavement temperature coincide with calculated modelling.