Design and damping characteristics testing of magneto-rheological fluid damper for special object
Zhan Xu
Abstract
Zhan Xu
Abstract
Aiming at the vibration characteristics of a small type steel frame,based on the theory of non-Newton liquid,from the physical property of the magneto-rheological fluids (MRF),the shear stress model of MRF damper is built up and non-linear characteristics of MR damper is described,the parameter of damper is obtained;by the developed MRF damper,the vibration characteristics of the frame structure is studied,the results show:after fixing the MRF damper,the vibration response of the frame structure is decreased by 42% for the first mode,which validate the damping effect of the developed MRF damper,and provide the theorical and experimental proof for the design of the MRF damper.
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Aiming at the vibration characteristics of a small type steel frame,based on the theory of non-Newton liquid,from the physical property of the magneto-rheological fluids (MRF),the shear stress model of MRF damper is built up and non-linear characteristics of MR damper is described,the parameter of damper is obtained;by the developed MRF damper,the vibration characteristics of the frame structure is studied,the results show:after fixing the MRF damper,the vibration response of the frame structure is decreased by 42% for the first mode,which validate the damping effect of the developed MRF damper,and provide the theorical and experimental proof for the design of the MRF damper.
Key concepts: Damper, Vibration, Magnetorheological fluid, Structural engineering, Frame (networking), Rheology, Materials science, Engineering