Sliding mode control of a shear-mode type ER engine mount |
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Authors: | Seung -Bok Choi Young -Tai Choi |
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Affiliation: | (1) Smart Structures and Systems Laboratory Department of Mechanical Engineering Inha University, 402-751 Incheon, Korea |
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Abstract: | This paper presents feedback control characteristics of a shear-mode type electro-rheological (ER) engine mount. The field-dependent
yield stress of an arabic gum-based ER fluid is obtained using a couette type electroviscometer, and it is incorporated into
the governing equation of motion of the ER engine mount, which is derived from a bond graph model. A sliding mode controller
which directly represents the field-dependent damping force is formulated by taking into account the stiffness and damping
properties of the systems as parameter uncertainties. The controller is then experimentally realized by imposing a semi-active
actuating condition. The effectiveness of the proposed ER engine mount is demonstrated showing capabilities of isolating the
vibrations due to sinusoidal and random excitations. |
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Keywords: | Electro-Rheological Fluid Shear-Mode Engine Mount Vibration Suppression Sliding Mode Control Semiactive Actuator |
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