A new active structure acoustic control system

2000 ◽  
Vol 107 (5) ◽  
pp. 2853-2853
Author(s):  
Dingguo Zou ◽  
Malcolm J. Crocker
Keyword(s):  
Control System ◽  
Active Structure ◽  
Acoustic Control

New Analytical Method for Modeling Active Structure Acoustic Control System within an Irregular Enclosure

2005 ◽  
Vol 24 (4) ◽  
pp. 265-273 ◽  
Author(s):  
Su Zhang ◽  
Nan Chen
Keyword(s):  
Control System ◽  
Analytical Method ◽  
Control Problems ◽  
Coupled Problems ◽  
Sound Sources ◽  
Acoustic Structure ◽  
Active Structure ◽  
Coupled Problem ◽  
Acoustic Control ◽  
Irregular Enclosure

A new analytical method for the acoustic-structure coupled problem within an irregular enclosure, which has both inner sound sources, and exterior forces exciting it, was developed based on a method called the covering domain method. The method is not only more accurate and faster than numerical methods, such as FEM/BEM, but also can be used to solve acoustic-structure coupled problems within any irregular enclosure in a convenient way, that are impossible for the traditional analytical method. The model for, the active structure acoustic control (ASAC) system of an irregular enclosure based on the method above was founded, and then the optimized actuators outputs were given, which is the key step for ASAC system design. Then the method was applied to a car-like-cavity and it was found that the simulation result is quite good and shows us this new general analytical method for solving active structure acoustic control problems within an irregular enclosure considering acoustic-structure coupling to be quite effective and fit for any irregular enclosure.

Robust μ-Synthesis Control for Parameter Variations

2012 ◽  
Vol 546-547 ◽  
pp. 850-855
Author(s):  
Ying Li ◽  
Xue Gong Ding
Keyword(s):  
Robust Stability ◽  
Disturbance Rejection ◽  
Main Idea ◽  
Robust Performance ◽  
Active Structure ◽  
Augmented System ◽  
Synthesis Design ◽  
Acoustic Control ◽  
Parameter Variations ◽  
Performance Problem

The robust ASAC(active structure acoustic control) model for the system of structural acoustical coupling is established and the μ-synthesis design is presented in the paper. The main idea is as follows: First, the robust performance problem of this system is transformed into the robust stability problem of an augmented system. Through the robust stability controller for this augmented system is solved by the standard D-K iteration. Simulation results show that μ-controller can provide good disturbance rejection and is more robust to parameter variations.

Enclosure Active Structure Acoustic Control Based on Multi-Agent System

2012 ◽  
Vol 605-607 ◽  
pp. 1142-1148
Author(s):  
Zhi Chen Li ◽  
Lin Ning Gu ◽  
Nan Chen
Keyword(s):  
Noise Reduction ◽  
Noise Control ◽  
Divide And Conquer ◽  
Flexible Plate ◽  
Multi Agent System ◽  
Control Field ◽  
Agent System ◽  
Active Structure ◽  
Acoustic Control ◽  
Multi Agent

For enclosure noise reduction, limited discrete distributed control is an ideal choice when it is difficult to understand sound-structure coupling characteristics accurately. An enclosure medel of two flexible plates is established in this paper. Two secondary control channels are constructed by applying distributed force on flexible plate. In the basis of control problem decomposition a multi-agent system (MAS) structure is established and the coordination relationship between agents is regulated. The simulaition resultes show the Active Structure Acoustic Control based on MAS is effective. The MAS control method improves the extension of noise control system and can be used in “plug-and–play” control field to realize noise reduction. MAS is a better effective tool to realize the divide-and-conquer approach in enclosure noise control field.

scholarly journals Towards a Lining Integrated Active Structural Acoustic Control System

2020 ◽  
Author(s):  
S. Algermissen ◽  
M. Misol ◽  
A. Kokott ◽  
T. Haase ◽  
K. Gonet ◽  
...  
Keyword(s):  
Control System ◽  
Acoustic Control ◽  
Structural Acoustic Control

Seismo-Acoustic Control System for Adaptive Drilling

2006 ◽  
Author(s):  
G.V. Rogotsky ◽  
O.L. Kuznetsov ◽  
I.A. Chirkin ◽  
B.Y. Meltchouk ◽  
V.A. Eliseev ◽  
...  
Keyword(s):  
Control System ◽  
Acoustic Control
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