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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.


Papers
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Journal ArticleDOI
TL;DR: In this article, a generalized piezothermoelastic finite element formulation of a laminated beam with embedded piezoelectric material as distributed actuators/sensors is presented.
Abstract: A generalized piezothermoelastic finite element formulation of a laminated beam with embedded piezoelectric material as distributed actuators/sensors is presented. Electromechanical and electrothermal couplings are incorporated using the linear equations of piezothermoelasticity. Inclusion of temperature and electric potential as state variables along with mechanical displacement permits a unified representation of multiple fields coupling in finite element formulations. A two noded 3-D beam element is derived using first order shear deformation theory to model direct and coupled effects. Eigenstructure assignment technique using output feedback is employed in the controller design, which is subsequently adopted to actively control the first three modes of a cantilever PZT/Steel/PZT beam. The desired eigenfrequencies are placed exactly and the tip motion of the beam is significantly reduced by shaping the eigenvectors of the closed-loop system. Control spillover effect is minimized by optimally selecting the actuator/sensor locations and optimizing the damping factors of the desired closed-loop eigenvalues.

28 citations

Journal ArticleDOI
TL;DR: In this article, a 3D quasi-zero stiffness (3DQZS) system is proposed to construct a 3-D sensor system for absolute motion measurement in vibration systems, which is achieved by employing a predeformed scissor-like structure.
Abstract: A novel 3-D quasi-zero-stiffness (3DQZS) system is proposed to construct a 3-D sensor system for absolute motion measurement in vibration systems. The 3DQZS system is achieved by employing a predeformed scissor-like structure. With mathe- matical modeling and the harmonic balance method, the nonlinear dynamic response of the 3-D sensor system is deeply analyzed. It is shown that this novel 3DQZS-based sensor system is very effective and reliable in 3-D absolute motion measurement in vi- bration systems. A case study in active vibration control using the proposed 3-D sensor indicates that much better vibration control performance can be readily achieved compared with conventional methods using a similar linear feedback controller. This novel sen- sor system should provide an alternative or much better solution to many vibration control problems in various engineering practices. Index Terms—Active vibration control, nonlinear system, quasi- zero stiffness (QZS), scissor-like structure (SLS), vibration sensor.

28 citations

Patent
30 Jul 2004
TL;DR: In this paper, the authors proposed an active vibration control device capable of preventing failure of control circuits in an exciter 14 and drive part 13 even at the time of traveling on a bad road.
Abstract: PROBLEM TO BE SOLVED: To provide an active vibration control device 1 capable of preventing failure of control circuits in an exciter 14 and drive part 13 even at the time of traveling on a bad road. SOLUTION: The active vibration control device determines whether or not a vehicle enters a bad road from a normal road during traveling on a normal road. When the device determines that the vehicle enters the bad road from the normal road, excitation force generating control is stopped. For instance, the driving voltage applied to an exciter 14 from a drive part 13 assumes zero or a very small constant value. The device determines whether or not the vehicle returns the normal road from the bad road during traveling on the bad road. When the device determines that a vehicle returns the normal road from the bad road, the excitation force generating control is resumed. COPYRIGHT: (C)2007,JPO&INPIT

28 citations

Journal ArticleDOI
TL;DR: In this paper, an improvement to the classical force feedback control scheme is proposed, which achieves arbitrary damping for any mechanical system by introducing a feed-through term, which is experimentally demonstrated by actively damping an objective lens assembly for a high-speed confocal microscope.

28 citations

Journal ArticleDOI
TL;DR: In this paper, an active vibration control of a simply supported rectangular plate made from functionally graded materials (FGM) with fuzzy logic control (FLC) is investigated and compared to the results obtained with the application of PID control.

28 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202363
2022106
2021131
2020118
2019157
2018185