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A single dof magnetic levitation system using time delay control and reduced-order observer
Springer Science and Business Media LLC - - 2002
Jun Shik Choi, Yoon Su Baek
Design of elastomeric bearing system and analysis of it mechanical properties
Springer Science and Business Media LLC - Tập 18 Số 1 - Trang 20-29 - 2004
Byung-Young Moon, Gyung-Ju Kang, Beom-Soo Kang, Dae‐Seung Cho
A lagrangian based scalar pdf method for turbulent combustion models
Springer Science and Business Media LLC - - 2004
Heejang Moon, R. Borghi
Numerical analysis of plume characteristics and liquid circulation in gas injection through a porous plug
Springer Science and Business Media LLC - - 2000
Choeng Ryul Choi, Chang Nyung Kim
Simplified Modeling of Deflagration in Vessels
Springer Science and Business Media LLC - Tập 18 - Trang 1338-1348 - 2004
Joon Hyun Kim, Joo-Hyun Kim
A simplified method that models the deflagration process occurring in closed or vented vessels is described. When combustion occurs within the spherical or cylindrical vessels, the flame moves spherically or segmentally to the vessel periphery. The volume and area of each element along the propagating flame front are calculated by using simple geometrical rules. For instabilities and turbulence re... hiện toàn bộ
Evaluation of wheel life by grinding ratio and static force
Springer Science and Business Media LLC - Tập 16 - Trang 1072-1077 - 2002
Jae-Seob Kwak, Man-Kyung Ha
A degree of sharpness in wheel grains affects the surface roughness and dimensional accuracy in the grinding process. If a wheel with dull grains is used, the grinding force is increased and the surface roughness is deteriorated. In ovder to produce a precision component economically, the magnitude of the wear amount in the grinding wheel has to be limited. In this study, experimental evaluation o... hiện toàn bộ
Passive prandtl-meyer expansion flow with homogeneous condensation
Springer Science and Business Media LLC - - 2004
Seungwon Baek, Soon Bum Kwon, Heuy Dong Kim
An investigation of design parameter and atomization mechanism for air shrouded injectors
Springer Science and Business Media LLC - Tập 17 - Trang 751-757 - 2003
Ki-Hyung Lee, Chang-Sik Lee, Bong-Gyu Kim, Hae-Young Jeong
With increasing requirements for the less harmful exhaust emissions and the better fuel economy, the conventional injectors in gasoline engines can be replaced by the air shrouded injector in order to provide improved combustion in engine operations. To find out the optimal shape of air shrouded atomizer attached to the conventional injector nozzle, the critical design parameters such as droplet s... hiện toàn bộ
An ALE finite element method for baffled fuel container in Yawing motion
Springer Science and Business Media LLC - Tập 18 - Trang 460-470 - 2004
Jin-Rae Cho, Hong-Woo Lee, Wan-Suk Yoo, Min-Jeong Kim
A computational analysis of engineering problems with moving domain or/and boundary according to either Lagrangian or Eulerian approach may encounter inherent numerical difficulties, the extreme mesh distortion in the former and the material boundary indistinctness in the latter. In order to overcome such defects in classical numerical approaches, the ALE (arbitrary Lagrangian Eulerian) method is ... hiện toàn bộ
Creep life prediction for udimet 720 material using the initial strain method (ISM)
Springer Science and Business Media LLC - Tập 17 - Trang 469-476 - 2003
Yu-Sik Kong, Han-Ki Yoon, Sae-Kyoo Oh
Despite of considerable research results of uniaxial tension creep available for superalloys, few studies have been made on high temperature creep using the Initial Strain Method (ISM). In this paper, the real-time prediction of high temperature creep strength and creep life for the nickel-based superalloy Udimet 720 (high-temperature and high-pressure gas turbine engine materials) was performed o... hiện toàn bộ
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