Journal ArticleDOI
Active control of sound transmission/radiation from elastic plates by vibration inputs. I - Analysis
TLDR
In this article, active control of sound radiation from vibrating plates by oscillating forces applied directly to the structure is analytically studied, and it is shown that global attenuation of broadband radiated sound levels for low to mid-range frequencies can be achieved with one or two control forces, irrespective of whether the system is on or off resonance.About:
This article is published in Journal of Sound and Vibration.The article was published on 1990-01-08. It has received 197 citations till now. The article focuses on the topics: Sound power & Acoustic wave.read more
Citations
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Journal ArticleDOI
Intelligent structures for aerospace - A technology overview and assessment
TL;DR: In this paper, the authors present an overview and assessment of the technology leading to the development of intelligent structures, which are those which incorporate actuators and sensors that are highly integrated into the structure and have structural functionality, as well as highly integrated control logic, signal conditioning and power amplification electronics.
Journal ArticleDOI
Smart structure dynamics
Stefan Hurlebaus,Lothar Gaul +1 more
TL;DR: In this article, a general description of smart material systems is given, focusing on the following fields of application: semi-passive concepts, energy harvesting, semi-active concepts, active vibration control and active structural acoustic control.
Journal ArticleDOI
Active suppression of acoustic radiation from impulsively excited structures
TL;DR: In this paper, a model-based method for actively suppressing transient structural acoustic radiation that can also be applied to steady, narrow, or broadband disturbances is presented. But the work is constrained by the assumption that the far field pressure cannot be directly measured.
Journal ArticleDOI
Active control of sound radiation from a vibrating rectangular panel by sound sources and vibration inputs: An experimental comparison
TL;DR: In this article, active control of sound radiation from a rectangular panel by two different methods has been experimentally studied and compared and two main mechanisms for attenuation of radiated sound were observed to occur.
Journal ArticleDOI
Smart panel with multiple decentralized units for the control of sound transmission. Part I: theoretical predictions
TL;DR: In this paper, a prototype smart panel with 16 decentralized vibration control units for the reduction of sound radiation/transmission is presented, which is made of a thin aluminium plate with 16 closely spaced accelerometer sensor and piezoceramic actuator transducer pairs connected by single-channel velocity feedback controllers.
References
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Book
Structure-borne sound
TL;DR: In this article, the authors consider bending waves, which are a special combination of compressional and shear waves, and for some special cases (quasi-) longitudinal waves and torsional waves also have to be considered.
Journal ArticleDOI
Structure-Borne Sound
TL;DR: In this paper, the authors consider bending waves, which are a special combination of compressional and shear waves, and for some special cases (quasi-) longitudinal waves and torsional waves also have to be considered.
Journal ArticleDOI
A comparison of control techniques for large flexible systems
TL;DR: The comparison shows the independent modal-space control method to possess many advantages over coupled control, as it permits easier design and implementation and requires less computational effort and control energy for implementation.
Journal ArticleDOI
The minimum power output of free field point sources and the active control of sound
TL;DR: In this paper, the authors used the near field technique developed by Levine to calculate the total power output from an arbitrary number of point primary and secondary sources, which is a quadratic function of the complex strengths of the secondary point sources.
PatentDOI
Apparatus and method for global noise reduction
TL;DR: In this article, an attenuating sound radiated from a vibrating surface into a control volume is described as comprised of a source of a control signal indicative of the amplitude and frequency content of the sound transmitted from the vibrating surfaces.