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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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Patent
23 Feb 1989
TL;DR: In this article, an electromechanical energy converter provides the oscillatory torque when the input signal to the EH converter has a frequency and harmonics thereof required to counteract the noise and vibration desired to be attenuated.
Abstract: Noise and vibration in a structure is reduced through application to the structure of an oscillatory torque. An electromechanical energy converter provides the oscillatory torque when the input signal to the electromechanical energy converter has a frequency and harmonics thereof required to counteract the noise and vibration desired to be attenuated.

24 citations

Journal ArticleDOI
J. Tian1, Q. Guo1, G. Shi1
TL;DR: In this article, a two-noded laminated piezoelectric beam element is presented for the dynamic analysis and active vibration control of laminated composite beams with piezolaminated layers.

24 citations

Journal ArticleDOI
TL;DR: In this article, a wave-based, adaptive, feed forward system for the control of flexural waves in a beam when a significant near-field wave is present is described, where the error sensors are located close to the control actuator.

24 citations

Journal ArticleDOI
TL;DR: In this article, the authors present a new method of addressing the issue of including the earthquake-type excitation explicitly in the development of control systems, by designing feedback and feedforward controllers whose gains are optimized by training on an ensemble of earthquakes.
Abstract: In civil engineering, the design of active vibration control systems for structures subjected to earthquake excitation is usually done using linear-quadratic optimal control theory. However, when this theory is applied to a system with an external forcing function, the function must be either neglected, known a priori, or treated as white noise. If it is treated as white noise, the control is optimized for steady-state response. For seismic analyses of structures, these three assumptions—that the earthquake input is known in advance, is neglected, or is white noise—are questionable. This represents a serious deficiency in using standard methods of linear optimal control for reducing structural vibrations under seismic loading. This paper presents a new method of addressing the issue of including the earthquake-type excitation explicitly in the development of control systems, by designing feedback and feedforward controllers whose gains are optimized by training on an ensemble of earthquakes. Two different...

24 citations

Patent
26 Aug 1980
TL;DR: In this article, an electrical control signal is produced which takes into account several coefficients through the adjustment of potentiometers in a control circuit which continuously controls the damping characteristic curve of the shock and vibration absorber system.
Abstract: not available for EP0027869Abstract of corresponding document: US4368900A mass such as a vehicle or craft, for example an aircraft, is cushioned against landing shocks and vibrations by an electronically controlled shock and vibration absorber system. For this purpose an electrical control signal is produced which takes into account several coefficients through the adjustment of potentiometers in a control circuit which continuously controls the damping characteristic curve of the shock and vibration absorber system.

24 citations


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