Topic
Active vibration control
About: Active vibration control is a research topic. Over the lifetime, 6770 publications have been published within this topic receiving 76599 citations. The topic is also known as: active vibration damping.
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01 Aug 2001
TL;DR: In this article, a magnetic damper system using a phase-lead controller is used to reduce the vibration of a one-degree-of-freedom suspension system, and an accurate transfer function for the total system is determined using an error minimization method.
Abstract: This paper is concerned with the design and implementation of a magnetic damper system to reduce the vibration of a suspension system actively. A cylindrical-type electromagnetic actuator with a permanent magnet is analysed and an effective controller design is made. An accurate force analysis is carried out for the given system. An accurate transfer function for the total system is determined by experimental data using an error minimization method. For experiments, a simple suspension structure system is utilized, in which a magnetic damper composed of a permanent magnet and digital controller is attached. In order to drive the system, a bipolar power amplifier of the voltage control type is utilized. A stable and high speed control board is used to implement digital control logic for the given system. This paper shows that the magnetic damper system using a phase lead controller is excellent in reducing the vibration of a one-degree-of-freedom suspension system.
47 citations
TL;DR: In this article, the performance potential of a new hardware combination for active suspension systems is presented, which consists of a low bandwidth actuator and a continuously variable damper, a setup that is shown to be competitive to high bandwidth active suspension system especially if energy, cost and implementability aspects are taken into account.
47 citations
TL;DR: The validity of the proposed fuzzy logic control has been demonstrated experimentally in a steel cantilever test beam and a set of experimental tests are made in the system to verify the efficiency of the on-line self-organizing fuzzy controller.
47 citations
TL;DR: In this article, an experimental verification of the active vibration control of a smart cantilever composite beam using a PID controller is presented, where first-order low-pass filters are implemented in the derivative action and in the feedback of the integral action.
Abstract: This paper presents experimental verification of the active vibration control of a smart cantilever composite beam using a PID controller. In order to prevent negative occurrences in the derivative and integral terms in a PID controller, first-order low-pass filters are implemented in the derivative action and in the feedback of the integral action. The proposed application setup consists of a composite cantilever beam with a fiber-reinforced piezoelectric actuator and strain gage sensors. The beam is modeled using a finite element method based on third-order shear deformation theory. The experiment considers vibration control under periodic excitation and an initial static deflection. A control algorithm was implemented on a PIC32MX440F256H microcontroller. Experimental results corresponding to the proposed PID controller are compared with corresponding results using proportional (P) control, proportional‐integral (PI) control and proportional‐derivative (PD) control. Experimental results indicate that the proposed PID controller provides 8.93% more damping compared to a PD controller, 14.41% more damping compared to a PI controller and 19.04% more damping compared to a P controller in the case of vibration under periodic excitation. In the case of free vibration control, the proposed PID controller shows better performance (settling time 1.2 s) compared to the PD controller (settling time 1.5 s) and PI controller (settling time 2.5 s). (Some figures may appear in colour only in the online journal)
47 citations
TL;DR: In this article, an analytical formulation is derived for modeling the behavior of laminated composite beams with integrated piezoelectric sensor and actuator, which is applicable for both thin and moderately beams, and includes the coupling between mechanical and electrical deformations.
46 citations