An active structural acoustic control approach for the reduction of the structure‐borne road noise

2002 ◽  
Vol 112 (5) ◽  
pp. 2247-2247
Author(s):  
Hugo Douville ◽  
Alain Berry ◽  
Patrice Masson
Keyword(s):  
Road Noise ◽  
Control Approach ◽  
Acoustic Control ◽  
Structural Acoustic Control

Active Control of Structure-Borne Road Noise Using Vibration Actuators

1998 ◽  
Vol 120 (2) ◽  
pp. 517-523 ◽  
Author(s):  
W. Dehandschutter ◽  
P. Sas
Keyword(s):  
Noise Reduction ◽  
Laboratory Experiments ◽  
Frequency Range ◽  
Road Noise ◽  
Control Approach ◽  
Noise Radiation ◽  
Acoustic Control ◽  
Numerical Tools ◽  
Control Set ◽  
Set Up

Structure-borne road noise is generated by road induced excitation forces. The control approach presented here relies on the use of vibration actuators to modify the vibration behavior of the car body such that its noise radiation efficiency is decreased (Active Structural Acoustic Control—ASAC). The controller is optimized using laboratory experiments and numerical tools to simulate the performance a complete vehicle control set-up. Road tests yield a 6.9 dB noise reduction in the frequency range 75–105 Hz at the error microphone and 6.1 dB noise reduction at the passenger’s ear.

scholarly journals Active Structural Acoustic Control of Road Noise in a Car Cabin Using H2 Control

2015 ◽  
Vol 51 (8) ◽  
pp. 551-560
Author(s):  
Yoshiro TAKAMATSU ◽  
Michel MENSLER ◽  
Yoshitaka DEGUCHI ◽  
Haruki YASHIRO ◽  
Taketoshi KAWABE
Keyword(s):  
Road Noise ◽  
Acoustic Control ◽  
Structural Acoustic Control

Error Sensing Strategy for Active Structural Acoustic Control Based on Acoustic Radiation Modes

2011 ◽  
Vol 346 ◽  
pp. 682-688
Author(s):  
Jin Wu Wu ◽  
Fei Tan
Keyword(s):  
Control Strategy ◽  
Acoustic Radiation ◽  
Radiation Mode ◽  
Control Approach ◽  
Mode Expansion ◽  
Simply Supported ◽  
Acoustic Control ◽  
Input Signals ◽  
Active Control Strategy ◽  
Structural Acoustic Control

A new sensing strategy based on acoustic radiation modes for active structural acoustic control approach is proposed for the minimization of the acoustic radiation from a vibrating simply supported plate. Measuring a few points velocity on the vibrating surface and solving the underdetermined equations of the radiation mode expansion, the approximate values of amplitudes of the first radiation modes can be obtained. Taking the above approximate amplitudes as the input signals of the controller, this forms an error sensing strategy based on radiation modes and corresponding active control strategy. The numerical simulations results are presented to show the feasibility of this error sensing strategy.

Experimental synthesis of sound pressure fields for active structural acoustic control testing

2013 ◽  
Vol 25 (7) ◽  
pp. 881-889 ◽  
Author(s):  
Stephan Algermissen ◽  
Sebastian Meyer ◽  
Christina Appel ◽  
Hans P Monner
Keyword(s):  
Sound Pressure ◽  
Pressure Fields ◽  
Acoustic Control ◽  
Structural Acoustic Control
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