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김희준(H.J.Kim),최영태(Y.T.Choi),최승복(S.B.Choi),정재천(C.C.Cheong) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.11_1
This paper presents performance analysis of an ER (electro-rheological) engine mount. A shear-mode type ER engine mount is devised and its equation of motion is derived from a bond graph method. Subsequently, a full-car model which is installed with ER engine mounts is established, followed by the construction of the governing equations of motion. Field-dependent vibration isolations of the full-car system are analyzed by considering excitation forces of the engine.<br/>
박인환(I.H.Park),최영태(Y.T.Choi),전영식(Y.S.Jeon),최승복(S.B.Choi),정재천(C.C.Cheong) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
This paper presents the performance investigation of an engine mount featuring an ER (Electro-Rheological) fluid. The Bingham properties of the ER fluid to be employed to the ER engine mount are experimentally obtained through Couette type viscometer. The governing equation of motion of the ER engine mount is derived using equivalent hydraulic model. The ER engine mount is then designed and manufactured on the basis of parameter studies. The electric field-dependent transmissibility of the ER engine mount is evaluated by changing the particle concentration of the ER fluid.<br/>
장유진(E.Chang),최영태(Y.T.Choi),정원식(W.S.Cheong),최승복(S.B.Choi),서문석(M.S.Suh),여문수(M.S.Yeo) 한국자동차공학회 1995 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1995 No.11_1
.This paper presents a novel type of a semi-active suspension system featuring ER(electro-theological) damper. Firstly, an ER fluid is composed and its Bingham property is tested as a function of an electric field. Governing equations of motion or the ER damper are derived by considering field-dependent yield stress, followed by the design and manufacturing through performance analysis. A semi-active suspension system is then formulated and its dynamic characteristics are evaluated via several control algorithms. It is show that the proposed method is very effective for the improvement of the vibration isolation.<br/>