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In this paper, we introduce the design method for multirate output feedback based frequency shaped sliding mode control. A switching type reaching law has been used for the vibration suppression of the smart structure. The frequency shaping approach is used to suppress the vibratory modes of smart structure excited during the sliding mode.
A rotary MRF (magnetorheological fluids) damper is introduced in tension control systems. An experimental tension control system is designed by using the MRF damper as tension control actuator. Control strategies of the tension control system are studied. A fuzzy-PID feedback controller for the tension control system is constructed, modeled, and numerically simulated by means of MATLAB/ SIMULINK,...
In this numerical study vibrations of a fully clamped composite plate subjected to impulsive pressure loadings are controlled by using piezoelectric patches. Finite element methods are preferred for numerical solutions. For obtaining finite element model of the smart plate structure, semiloof shell finite element including piezoelectric effects is used. Mode summation method is used for reducing the...
Traditional method of structural vibration control through stiffen the components, decoupling the harmonic resonance system, vibration and damping isolation, or dynamic vibration absorb, all rely structure damping consumption the energy, the control effect is limited because the constraints of materials performance. Piezoelectric smart structure with advantages such as fast response, arrangement flexible,...
Smart structures sense, respond and control their own characteristics and states. This paper deals with the vibration control of smart structures using quantitative feedback theory (QFT). A robust QFT Controller is designed to perform well within the specifications for the uncertainties introduced by varying sensor-actuator locations, thus circumventing the necessity to optimally position sensors...
This paper proposes a composite output feedback controller which consists of periodic output feedback and fast output sampling feedback controller. Each of the controllers is designed to suppress the particular vibration mode. The proposed controller is applied to control the first two vibration modes of a piezoelectric actuated cantilever beam. The performance of the controller is shown by simulation...
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