Optimal active vibration control on a car for cancellation of road noise disturbance
Optimal active vibration control on a car for cancellation of road noise disturbance
- New search for: Belgacem, Walid
- New search for: Masson, Patrice
- New search for: Berry, Alain
- New search for: Belgacem, Walid
- New search for: Masson, Patrice
- New search for: Berry, Alain
An active structural acoustic control strategy is applied to structure-borne road noise transmission paths on a car in the laboratory. A methodology is first presented for the analysis of vibro-acoustic transmission paths (up to 500 Hz), with excitation using a shaker connected in a round-robin fashion to the wheel hubs. Primary force-acceleration frequency response functions (FRFs) between the excitation signal at each wheel and each suspension/chassis linkages are used to characterize the different paths that transmit energy through the chassis of the car. Vibro-acoustic FRFs are also measured between the excitation signal and the acoustic pressure inside the cabin. An experimental model of the car is used to simulate the configuration of the active control system, using the primary FRFs and secondary FRFs, also measured on the car using inertial actuators located on the suspensions. A genetic algorithm is then used to optimize the configuration of the control actuators. Optimal control results compare the noise reduction achieved by the approach in the cabin using various cost functions.
Document information
Optimal active vibration control on a car for cancellation of road noise disturbance
Optimale aktive Schwingungsregelung an einem Automobil für die Eliminierung der Straßengeräuschstörgröße
2009
21 Seiten, 3 Bilder, 1 Tabelle, 13 Quellen
Conference paper
English
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