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   Semi-Active Control of Building Structures Using Variable Stiffness Device and Fuzzy Logic  
نویسنده Pourzeynali S. ,Jooei P.
منبع International Journal Of Engineering - 2013 - دوره : 26 - شماره : 10 - صفحه:1169 -1182
چکیده    Semi-active control devices, also called intelligent control devices, constitute the positive aspects of both passive and active control devices. a semi-active control strategy is similar to the active control strategy, but this control device has been shown to be more energy-efficient than active devices. a particular type of semi-active control device, the variable stiffness device (vsd), consists of a hydraulic cylinder with a normally closed solenoid control valve inserted in the tube connecting the two cylinder chambers. this paper emphasizes on the application of semi-active fuzzy logic controller (sflc) of this system for getting the best results in the reduction of the building responses under earthquake excitations. for the numerical example, a 12-story building, located in the city of rasht, iran, is modeled as 3-d frame and the problem is solved in state space. the results obtained from the proposed control scheme (sflc) are compared with those obtained from the on-off control method. it is found that the sflc is highly effective in reducing the responses of the example building than the on-off algorithm. in this study, the optimal values of the fuzzy rule bases, membership functions, and the location of the control device are determined. © 2013 elsevier b.v.
کلیدواژه Fuzzy Logic Controller (Flc); On-Off Algorithm; Semi-Active Control; Variable Stiffness Device (Vsd)
آدرس University Of Guilan, ایران, University Of Guilan, ایران

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