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박수철(Soo-chul Park),박수건(Soo-kyeon Park),조호준(Ho-jun Cho),윤한기(Han-ki Yoon) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
The 2-way valve was manually worked for fluid controling. In this case, the problems of pressure control and security of worker was existed. 3-way auto change valve makes the fluid flow to become fine and auto change, work efficiency and quality are increased. The 3-way auto change valve needs air flow analysis for application on industry. In this study, the 3-way auto change valve was analyzed on fluid flow of maximized velocity, minimized velocity, air pressure and air density by changing entrance air velocity. The results was that the maximum velocity lineally increased according to increase entrance velocity and Maximum pressure increased non-lineally.
이권희(Kwon-Hee Lee),박수철(Soo-Chul Park),박수건(Soo-Kyeon Park),배태성(Tae-Sung Bae) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.4
This study propose the structural design of flame arrester of crankcase relief valve. This valve must have flame arrester can shut out flame emission. Numerical simulations perform to analyze flow charateristics and to find pressure distribution of crankcase relief valve. Numerical simulations are performed on the compressible gas flow through relief valve(Ø670㎜) Numerical simulations are performed by Solidworks and ANSYS CFX11.0 In consequence the flame arrester shape makes a significant effect on the velocity and direction of the flow.
박수건,윤한기,안원기 東義大學校 産業技術開發硏究所 1999 産業技術硏究誌 Vol.13 No.-
The characteristics of corrosion fatigue crack propagation of ALBC3 in 3% NaCl solution have been evaluated for 150rpm, loading frequency of 2.5Hz. The fatigue crack propagation rate in 3% NaCl solution simulated that in air. And it was found that anti-corrosion of fatigue crack propagation of ALBC3 material was good.