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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.


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Journal ArticleDOI
Young Keun Kim1, Hyoin Bae, Jeong-Hoi Koo, Kyung-Soo Kim, Soohyun Kim 
TL;DR: It will be shown that the proposed MRE TVA reduces in real time the transmission of a time-varying excited vibration of 48-55 Hz, which shows the potential applicability of the MRE in reducing unwanted vibration to precision devices.
Abstract: An adaptive tunable vibration absober based on magnetorheological elastomer (MRE) is designed as an intelligent device for auto-tuning itself to the time-varying harmonic disturbance force to reduce the unwanted vibration of the primary system in the steady state. The objectives of this note are to develop and implement a continuous control method for a MRE tunable vibration absorber (TVA) and to evaluate its performance in suppressing time-varying tonal vibrations. In the proposed control, the stiffness of MREs is continuously varied based on a nonlinear tuning function that relates the response of the system to the input magnetic field density. Through experiments, it will be shown that the proposed MRE TVA reduces in real time the transmission of a time-varying excited vibration of 48–55 Hz, which shows the potential applicability of the MRE in reducing unwanted vibration to precision devices.

22 citations

Book ChapterDOI
01 Jan 1988
TL;DR: The Linear Quadratic Gaussian with Loop Transfer Recovery (LQG/LTR) control design technique is a particular robust design technique selected for use in designing a damping control system.
Abstract: Active control laws are developed for an LSS-type structure to damp vibrations. High frequency modelling uncertainties lead to the necessity for a robust control design. The Linear Quadratic Gaussian with Loop Transfer Recovery (LQG/LTR) control design technique is a particular robust design technique selected for use in designing a damping control system. A summary of LQG/LTR is given and numerical example using a two bay truss is presented.

22 citations

Journal ArticleDOI
TL;DR: In this paper, a damping control system for axle dampers and air springs is proposed to suppress the first mode bending vibration and the second mode rigid mode vibration, and the results indicate that the control method effectively reduces the power spectral density (PSD) of accelerations of the carbody floor.
Abstract: In order to improve the ride comfort on railway vehicles, it is essential to suppress the vibration of the vertical bending mode of the carbody as well as one of the rigid modes. Therefore, we propose a method to suppress such vibrations by using damping control systems for axle dampers and air springs; the former is to suppress the first mode bending vibration, and the latter is to suppress the rigid mode vibration. Our results indicate that the control method effectively reduces the power spectral density (PSD) of accelerations of the carbody floor.

22 citations

01 Jan 2005
TL;DR: In this article, an analytical model for MR structures based on the KelvinVoigt model and Hamilton principle is presented. And an active vibration controller based on Lyapunov stability theory is designed.
Abstract: Sandwich beam structures constructed with MR fluids can be implemented as distributed vibration absorbers to suppress unwanted vibrations. This paper introduces an analytical model for MR structures based on the KelvinVoigt model and Hamilton principle. The relationship between the magnetic field and the complex shear modulus of MR sandwich beam in the pre-yield regime is presented. The governing partial differential equations describing the dynamics of MR sandwich beam are derived and a model analysis is performed. An active vibration controller based on Lyapunov stability theory is designed. Simulations show the stable response and improved transient performance provided by the control system.

22 citations

Journal ArticleDOI
TL;DR: In this article, an innovative method by using block pulse functions to minimize expenses of computations was proposed to verify the validity and feasibility of the proposed method in earthquake-excited 10-story shear buildings equipped with an active mass damper.
Abstract: Active vibration control is one of the most efficient systems to mitigate excessive vibrations by providing significantly superior supplemental damping in civil engineering structures. One of the most challenging components of active control is development of an accurate analytical approach with minor computational expenses. Active mass damper (AMD) is one of the most commonly used active control devices, including a mass-spring-damper system with an actuator to increase the amount of damping in structures. Block pulse functions have been studied and applied frequently in recent years as a basic set of functions for signal characterizations in systems science and control. The purpose of this study is to establish an innovative method by using block pulse functions to minimize expenses of computations. Numerical simulations of earthquake-excited 10-story shear buildings equipped with an active mass damper are provided to verify the validity and feasibility of the proposed method. The proposed method's unco...

22 citations


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