To control the flow of fluid, several kinds of valves are used. Especially, Main Control Valve (MCV) is the key element of hydraulic system which performs complex control not only controlling the flow of fluid, but also prevent damage of equipment by supplying proper hydraulic pressure to actuator and draining over-supplied hydraulic pressure. While general control valves are producing in domestically, entire quantity of main control valves are depended on importation and it depreciates competitiveness in cost, and time. In this study, to derive the best design of notch structure by following the orifice flow of 6-linked main control valve and the relation between “notch structure” which is the most fundamental element to control the velocity of the fluid and “pressure distribution”, the flowcharacteristic is compared by comprehending hydraulic pressure and velocity of the fluid using CFD simulation when spool valve is used for “meter-in” and “meter-out” through the opening of the notch structure.
목차
Abstract 1. 서론 2. 해석 방법 및 조건 2.1 스풀 및 밸브 하우징 3D 모델링 2.2 유한 체적 모델 생성 2.3 FLUENT를 통한 해석 2.4 MIDAS NFX를 통한 해석 3. 해석 결과 및 분석 3.1 Case 1 (Port1 - Inlet) 3.2 Case 2 (Port2 - Inlet) 4. 결론 References
키워드
Main Control Valve(주제어밸브)Hydraulic Equipment(유압장비)CFD(전산유체역학)Spool Valve (스풀 밸브)Notch Shape(노치 형상)
저자
이태근 [ Tae-Keun Lee | Daeduk College, department of precision mechanical ]
김태규 [ Tae-Kyu Kim | Daeduk College, department of precision mechanical ]
Corresponding author
김대호 [ Dae-Ho Kim | Daeduk College, department of precision mechanical ]